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A skydiver's parachute fails to deploy. After some struggle, his reserve chute deploys in time to save his life. However, his landing is harder than normal and he feels his knee slightly hyperextend. He shakes it off and goes about his normal routine. Later that day he begins experiencing knee pain. Two days later he notices that his knee "pops" when he crouches and soon discovers he has dislocated his femur on the knee. What muscle was likely injured initially?
A skydiver's parachute fails to deploy. After some struggle, his reserve chute deploys in time to save his life. However, his landing is harder than normal and he feels his knee slightly hyperextend. He shakes it off and goes about his normal routine. Later that day he begins experiencing knee pain. Two days later he notices that his knee "pops" when he crouches and soon discovers he has dislocated his femur on the knee. What muscle was likely injured initially?
A heavyset middle-aged insurance salesman, who doesn't exercise often, accepts his friend's invitation to a pickup basketball game. When attempting a jump shot, he falls to the ground in pain, grasping at the calf of his leg. There is an enormous bulge in his leg immediately below the popliteal fossa, and he is unable to plantar flex that foot. Most likely he has injured his ____ and the bulge is ____
A heavyset middle-aged insurance salesman, who doesn't exercise often, accepts his friend's invitation to a pickup basketball game. When attempting a jump shot, he falls to the ground in pain, grasping at the calf of his leg. There is an enormous bulge in his leg immediately below the popliteal fossa, and he is unable to plantar flex that foot. Most likely he has injured his ____ and the bulge is ____
Muscle fibers are arranged in bundles called ____
Muscle fibers are arranged in bundles called ____
A clinician induces contraction of the gastrocnemius and soleus and notices that the foot does not plantar flex as expected. Which of the following would be a logical diagnosis?
A clinician induces contraction of the gastrocnemius and soleus and notices that the foot does not plantar flex as expected. Which of the following would be a logical diagnosis?
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In lifting a heavy weight from the floor, one should use the power of the ____ in order to avoid straining the lower back.
In lifting a heavy weight from the floor, one should use the power of the ____ in order to avoid straining the lower back.
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The triceps surae consists of three muscles in the lower limb.
The triceps surae consists of three muscles in the lower limb.
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The deepest muscle of the abdominal wall is the ____
The deepest muscle of the abdominal wall is the ____
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A sacral fracture affecting the S3 and S4 nerve roots would result in a person having difficulty with evacuation of the bowels.
A sacral fracture affecting the S3 and S4 nerve roots would result in a person having difficulty with evacuation of the bowels.
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The antagonist to the triceps brachii is the ______
The antagonist to the triceps brachii is the ______
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While sitting at your desk, you drop your pencil onto the floor. You bend over to pick up the pencil. In order to straighten up and continue your exam you must use which of the following muscles?
While sitting at your desk, you drop your pencil onto the floor. You bend over to pick up the pencil. In order to straighten up and continue your exam you must use which of the following muscles?
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Which term best describes the relationship of the deltoid and SITS muscles during shoulder abduction?
Which term best describes the relationship of the deltoid and SITS muscles during shoulder abduction?
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You hear a loud noise behind you and look back over your left shoulder. Which of the following is true?
You hear a loud noise behind you and look back over your left shoulder. Which of the following is true?
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Which of the following muscles of facial expression is not innervated by the facial nerve?
Which of the following muscles of facial expression is not innervated by the facial nerve?
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The semitendinosus is an example of what muscle shape?
The semitendinosus is an example of what muscle shape?
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After childbirth, a woman begins experiencing tremendous pain in her groin, making it difficult for her to walk. An X-ray shows a fracture extending from her symphysis pubis to the inferior ramus of the pubis. As a result of the fracture, which group of muscles might be impaired?
After childbirth, a woman begins experiencing tremendous pain in her groin, making it difficult for her to walk. An X-ray shows a fracture extending from her symphysis pubis to the inferior ramus of the pubis. As a result of the fracture, which group of muscles might be impaired?
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Which muscle is innervated by the tibial nerve?
Which muscle is innervated by the tibial nerve?
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Which of the following describes muscular tissue emerging directly from bone rather than being separated from it by an obvious tendon?
Which of the following describes muscular tissue emerging directly from bone rather than being separated from it by an obvious tendon?
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Which cranial nerve innervates the sternocleidomastoid and trapezius?
Which cranial nerve innervates the sternocleidomastoid and trapezius?
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Which of the following muscles is responsible for medially rotating the tibia on the femur when the knee is flexed?
Which of the following muscles is responsible for medially rotating the tibia on the femur when the knee is flexed?
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Which term below best describes the deltoid?
Which term below best describes the deltoid?
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What is the longest muscle in the human body?
What is the longest muscle in the human body?
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What term best describes the relationship between the pronator quadratus and supinator?
What term best describes the relationship between the pronator quadratus and supinator?
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The occipitalis and frontalis are connected via the ______
The occipitalis and frontalis are connected via the ______
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An Olympic sprinter readies for a race. After the sound of the starting gun, he propels himself forward from the starting block and immediately grimaces in pain, grabbing for the back of his thigh. Within 48 hours he begins noticing extensive bruising on the back of his thigh extending into the back of the knee. He now has difficulty rising from a seated position and flexing his knee. Bending at the waist generates more pain. Which muscle is likely injured?
An Olympic sprinter readies for a race. After the sound of the starting gun, he propels himself forward from the starting block and immediately grimaces in pain, grabbing for the back of his thigh. Within 48 hours he begins noticing extensive bruising on the back of his thigh extending into the back of the knee. He now has difficulty rising from a seated position and flexing his knee. Bending at the waist generates more pain. Which muscle is likely injured?
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Tendinous intersections divide the ______ into segments that are externally visible on the abdomen of a well-muscled person.
Tendinous intersections divide the ______ into segments that are externally visible on the abdomen of a well-muscled person.
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The aponeurosis of the external oblique forms the ______ at its inferior margin.
The aponeurosis of the external oblique forms the ______ at its inferior margin.
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A baseball pitcher who injures one of his SITS muscles most commonly sustains tears to the tendon of which muscle?
A baseball pitcher who injures one of his SITS muscles most commonly sustains tears to the tendon of which muscle?
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Which muscle acting on the arm assists in deep inspiration?
Which muscle acting on the arm assists in deep inspiration?
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Which of the following muscles is the prime mover for inhalation?
Which of the following muscles is the prime mover for inhalation?
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Groups of muscles are separated by which of the following?
Groups of muscles are separated by which of the following?
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Unilateral contraction of which muscle causes ipsilateral flexion of the lumbar vertebral column?
Unilateral contraction of which muscle causes ipsilateral flexion of the lumbar vertebral column?
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A skateboarder falls and lands directly on his buttocks and lower back. He does not feel much pain and continues skating. After a couple of days he begins experiencing right hip pain and notices his right foot and leg are rotated to the right. A doctor diagnoses a muscle spasm. Which of the following muscles is most likely causing the leg and foot rotation?
A skateboarder falls and lands directly on his buttocks and lower back. He does not feel much pain and continues skating. After a couple of days he begins experiencing right hip pain and notices his right foot and leg are rotated to the right. A doctor diagnoses a muscle spasm. Which of the following muscles is most likely causing the leg and foot rotation?
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A point of convergence for several muscles of the lower face is the ______
A point of convergence for several muscles of the lower face is the ______
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Which of the following muscles is innervated by the obturator nerve?
Which of the following muscles is innervated by the obturator nerve?
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Some people suffer involuntary urination due to incompetence of what muscle?
Some people suffer involuntary urination due to incompetence of what muscle?
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Which of the following muscles is not externally visible on the trunk of the body?
Which of the following muscles is not externally visible on the trunk of the body?
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When a nurse draws blood, it is not uncommon for the needle to penetrate which muscle near the cubital region?
When a nurse draws blood, it is not uncommon for the needle to penetrate which muscle near the cubital region?
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Which of the following muscles adducts and medially rotates the thigh?
Which of the following muscles adducts and medially rotates the thigh?
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The rectus abdominis is a ______ muscle, while the rectus femoris is a ______ muscle.
The rectus abdominis is a ______ muscle, while the rectus femoris is a ______ muscle.
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Tennis elbow is a common term describing injury to the attachment of which of the following?
Tennis elbow is a common term describing injury to the attachment of which of the following?
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Which of the following muscles is in the medial compartment of the thigh?
Which of the following muscles is in the medial compartment of the thigh?
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Carpal tunnel pressure is sometimes relieved by surgically excising part or all of which structure?
Carpal tunnel pressure is sometimes relieved by surgically excising part or all of which structure?
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The muscles that laterally rotate and depress the scapula, as in shrugging and lowering the shoulders, are the ______
The muscles that laterally rotate and depress the scapula, as in shrugging and lowering the shoulders, are the ______
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Injury to the deep fibular nerve would cause inability to extend ones toes.
Injury to the deep fibular nerve would cause inability to extend ones toes.
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Which of the following muscles of mastication would be responsible for mandibular elevation?
Which of the following muscles of mastication would be responsible for mandibular elevation?
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An injury that results in complete functional loss of the ulnar nerve will affect which of the following muscles?
An injury that results in complete functional loss of the ulnar nerve will affect which of the following muscles?
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An ______ muscle is contained within a region whereas an ______ muscle acts upon one region but has an attachment elsewhere.
An ______ muscle is contained within a region whereas an ______ muscle acts upon one region but has an attachment elsewhere.
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Which of the following correctly states the proximal and distal attachments of the sternocleidomastoid?
Which of the following correctly states the proximal and distal attachments of the sternocleidomastoid?
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Which of the following is true regarding the levator scapulae?
Which of the following is true regarding the levator scapulae?
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Which of the following is not a function of the muscular system?
Which of the following is not a function of the muscular system?
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Which muscle attaches to the manubrium and the thyroid cartilage, and aids in singing low notes?
Which muscle attaches to the manubrium and the thyroid cartilage, and aids in singing low notes?
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The palatoglossus is innervated by which nerve(s)?
The palatoglossus is innervated by which nerve(s)?
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After taking their wedding vows, a bride and groom often ceremonially use which of the following muscles before walking away from the altar?
After taking their wedding vows, a bride and groom often ceremonially use which of the following muscles before walking away from the altar?
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Which muscle(s) of respiration is(are) innervated by the phrenic nerve?
Which muscle(s) of respiration is(are) innervated by the phrenic nerve?
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Which one of these muscles helps to open the mouth (depress the mandible)?
Which one of these muscles helps to open the mouth (depress the mandible)?
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Which of the following muscles inserts on the head of the fibula?
Which of the following muscles inserts on the head of the fibula?
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The ______ attaches to the zygomatic arch and also to the angle of the mandible.
The ______ attaches to the zygomatic arch and also to the angle of the mandible.
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Study Notes
Multiple Choice Questions
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Question 1: A skydiver's parachute fails, but a reserve deploys in time, causing hyperextension injury to the skydiver's knee. Two days later, the skydiver notices their knee "popping" when they crouch. The likely muscle injured initially was the quadriceps femoris.
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Question 2: A heavyset insurance salesman experiences pain in his calf after attempting a jump shot while playing basketball. He suffers inability to plantar flex his foot, and a large bulge appears below his popliteal fossa. This likely indicates injury to the hamstrings and a large hematoma (blood clot).
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Question 3: Muscle fibers are arranged in bundles called fascicles.
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Question 4: A clinician observes that a patient's gastrocnemius and soleus muscles aren't performing plantar flexion as expected; a plausible diagnosis is ruptured calcaneal tendon.
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Question 5: Lifting heavy weights should use the power of the knee and hip extensors to avoid lower back strain.
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Question 6: The antagonist to the triceps brachii is the biceps brachii.
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Question 7: Bending at the desk to pick up a pencil requires the use of the erector spinae muscles.
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Question 8: The triceps surae consists of three muscles (true).
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Question 9: The deepest muscle of the abdominal wall is the transverse abdominal.
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Question 10: The relationship between the deltoid and SITS muscles during shoulder abduction is described as synergists.
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Question 11: A loud noise behind a person causes a contralateral contraction of the right sternocleidomastoid muscle.
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Question 12: The facial nerve doesn't innervate the levator palpebrae superioris muscle.
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Question 13: Semitendinosus is a fusiform muscle.
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Question 14: A woman experiencing groin pain after childbirth, indicated by an X-ray fracture extending from the symphysis pubis to the inferior pubic ramus, might have an impaired thigh adductor group.
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Question 15: The occipitalis and frontalis muscles are connected by the galea aponeurotica.
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Question 16: Aponeurosis describes muscular tissue emerging directly from bone, not via tendon.
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Question 17: The accessory nerve (cranial nerve XI) innervates the sternocleidomastoid and trapezius muscles.
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Question 18: When the knee is flexed, the semitendinosus muscle is responsible for medially rotating the tibia on the femur.
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Question 19: The deltoid muscle is described as an extrinsic muscle.
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Question 20: The longest muscle in the human body is the sartorius muscle.
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Question 21: Pronator quadratus and supinator muscles are antagonists.
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Question 22: The tibial nerve innervates semimembranosus muscle.
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Question 23: An Olympic sprinter experiencing thigh pain and limited ability to flex their knee, and pain during waist bending after a race, likely injured the biceps femoris muscle.
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Question 24: Tendinous intersections divide the rectus abdominis muscle into segments, creating visible external lines along the abdomen.
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Question 25: The aponeurosis of the external oblique muscle creates the linea alba, at the inferior margin.
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Question 26: A baseball pitcher tearing one of the muscles of the rotator cuff (SITS) most often tears the supraspinatus tendon.
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Question 27: The pectoralis major muscle helps with deep inhalation.
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Question 28: The prime mover for inhalation is the diaphragm.
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Question 29: Muscle groups are separated by perimysium.
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Question 30: A sacral fracture affecting the S3 and S4 nerve roots can lead to bowel evacuation difficulties (true).
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Question 31: Unilateral contraction of quadratus lumborum causes ipsilateral flexion of the lumbar vertebral column.
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Question 32: The right hip and foot rotation in a patient who fell while skateboarding might indicate piriformis muscle spasm.
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Question 33: Modiolus is the point of convergence for several muscles in the lower face.
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Question 34: The muscles innervated by the obturator nerve include gracilis and sartorius.
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Question 35: Incontinence is related to issues with the external urethral sphincter.
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Question 36: The transverse abdominal muscle is not externally visible on the trunk.
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Question 37: The pronator teres muscle is a target for blood draw needles near the cubital region.
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Question 38: The adductor magnus muscle adducts and medially rotates the thigh.
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Question 39: Rectus abdominis is a parallel and bipennate muscle.
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Question 40: Tennis elbow refers to injury at the attachment of the extensor carpi radialis longus.
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Question 41: The vastus medialis muscle is in the medial compartment of the thigh.
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Question 42: Carpal tunnel pressure is sometimes relieved by surgically excising the flexor retinaculum.
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Question 43: The muscles that laterally rotate and depress the scapula include the trapezius and serratus anterior, as well as the levator scapulae and rhomboideus.
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Question 44: Injury to the deep fibular nerve leads to inability to extend the toes (true).
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Question 45: The temporalis muscle is responsible for mandibular elevation.
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Question 46: Damage to the ulnar nerve affects the abductor digiti minimi muscle.
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Question 47: An extrinsic muscle acts upon one region, with attachments elsewhere.
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Question 48: The correct distal and proximal attachments for sternocleidomastoid are: sternal manubrium and medial one-third of clavicle, mastoid process and lateral half of superior nuchal line
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Question 49: Levator scapulae protracts scapula when humerus is fixed.
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Question 50: Secretion is not a function of the muscular system.
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Question 51: The sternohyoid muscle attaches to the manubrium and thyroid cartilage, aids in singing low tones.
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Question 52: The palatoglossus is innervated by the vagus and accessory nerves.
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Question 53: The use of orbicularis oris is seen in a bride and groom's ceremony at an altar.
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Question 54: The diaphragm is a muscle innervated by the phrenic nerve.
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Question 55: The digastric muscle assists mouth opening.
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Question 56: The biceps femoris muscle inserts onto the head of the fibula.
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Question 57: The buccinator muscle attaches to the zygomatic arch and the angle of the mandible.
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Question 58: The study of muscles is called myology.
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Question 59: The splenius capitis muscle is the most superficial of the head extensors.
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Question 60: The intrinsic muscle of the hand is the adductor pollicis.
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Description
Test your knowledge on muscle injuries and anatomy with this multiple choice quiz. Each question presents real-life scenarios involving muscle function and injury, allowing you to apply your understanding of human physiology. Perfect for students and health professionals alike.
