Muscles
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Questions and Answers

What type of muscle is characterized by having long, thin lines?

  • Smooth muscle
  • Cardiac muscle (correct)
  • Visceral muscle
  • Skeletal muscle

Which type of muscle is under autonomic control and is found in the walls of the GI tract and arteries?

  • Smooth muscle (correct)
  • Visceral muscle
  • Skeletal muscle
  • Cardiac muscle

What is the function of skeletal muscles in the body?

  • For locomotion and maintaining body posture (correct)
  • To contract slowly with sustained movements
  • To regulate the contractions of the heart muscles
  • To control involuntary actions in the body

Which term refers to the attachment of a muscle that usually moves the most?

<p>Insertion (A)</p> Signup and view all the answers

What is a common location where smooth muscles are found in the body?

<p>In the walls of arteries and veins (B)</p> Signup and view all the answers

What kind of muscle is responsible for voluntary movements such as lifting weights or walking?

<p>Skeletal muscle (C)</p> Signup and view all the answers

What is the action of the accessory nerve (CN XI)?

<p>Extend the shoulder (B)</p> Signup and view all the answers

Which muscle is responsible for extending the carpus and is innervated by the radial nerve?

<p>Extensor carpi radialis (B)</p> Signup and view all the answers

What is the action of the gracilis muscle?

<p>Adduct the limb, extend the hip and tarsus, flex the stifle (A)</p> Signup and view all the answers

Which muscle is an example of an epaxial muscle?

<p>Iliocostalis (D)</p> Signup and view all the answers

What is the innervation of the gastrocnemius muscle?

<p>Tibial nerve (B)</p> Signup and view all the answers

Which of the following is an example of a hypaxial muscle?

<p>Rectus abdominis (A)</p> Signup and view all the answers

Which type of muscle is responsible for the slow, sustained contractions found in the walls of the gastrointestinal tract and blood vessels?

<p>Smooth muscle (B)</p> Signup and view all the answers

What is the term used to describe the attachment of a muscle that usually moves the most during a contraction?

<p>Insertion (A)</p> Signup and view all the answers

Which of the following is an example of an extrinsic muscle of the thoracic limb?

<p>Brachiocephalicus (C)</p> Signup and view all the answers

What type of muscle is described as having long, thin lines and is responsible for voluntary movements?

<p>Striated skeletal muscle (C)</p> Signup and view all the answers

Which type of muscle is found in the wall of the heart and is responsible for the rhythmic contraction of the heart?

<p>Cardiac muscle (D)</p> Signup and view all the answers

What is the term used to describe the attachment of a muscle that is usually more fixed and moves the least during a contraction?

<p>Origin (D)</p> Signup and view all the answers

Which statement about the rectus abdominis muscle is correct?

<p>It runs from the pubis to the sternum and flexes the vertebral column. (D)</p> Signup and view all the answers

What is the action of the iliocostalis muscle?

<p>Fixes the vertebral column and is the most lateral epaxial muscle. (C)</p> Signup and view all the answers

Which muscle is responsible for extending the tarsus and flexing the stifle?

<p>Gastrocnemius (D)</p> Signup and view all the answers

Which statement about the extensor carpi radialis muscle is false?

<p>It is innervated by the tibial nerve. (C)</p> Signup and view all the answers

What is the innervation of the gracilis muscle?

<p>Obturator nerve (C)</p> Signup and view all the answers

Which muscle is responsible for adducting the limb, extending the hip, and flexing the stifle?

<p>Gracilis (B)</p> Signup and view all the answers

Which type of muscle is responsible for slow, sustained contractions in the walls of the gastrointestinal tract and blood vessels?

<p>Smooth Muscle (C)</p> Signup and view all the answers

What is the term used to describe the attachment of a muscle that usually moves the most during a contraction?

<p>Distal Attachment (A)</p> Signup and view all the answers

Which muscle is used for locomotion, movement of body parts relative to each other, and maintaining body posture?

<p>Skeletal Muscle (B)</p> Signup and view all the answers

What is the main characteristic of striated muscles?

<p>Having long, thin lines (D)</p> Signup and view all the answers

Which term refers to the attachment of a muscle that usually moves the least during contraction?

<p>Proximal Attachment (C)</p> Signup and view all the answers

Where are smooth muscles typically found in the body?

<p>In the Walls of Arteries and Veins (B)</p> Signup and view all the answers

What is the action of the extensor carpi radialis muscle?

<p>Extend the carpus (D)</p> Signup and view all the answers

Which muscle is an example of a hypaxial muscle?

<p>Rectus abdominus (D)</p> Signup and view all the answers

What is the innervation of the gracilis muscle?

<p>Obturator nerve (C)</p> Signup and view all the answers

What is the action of the gastrocnemius muscle?

<p>Extend the tarsus and flex the stifle (B)</p> Signup and view all the answers

Which muscle is responsible for extending the shoulder?

<p>Muscle within the limb, lateral view (A)</p> Signup and view all the answers

What is the innervation of the muscle responsible for extending the shoulder?

<p>Accessory nerve (CN XI) (B)</p> Signup and view all the answers

Which type of muscle is responsible for the rhythmic contraction of the heart?

<p>Cardiac muscle (C)</p> Signup and view all the answers

What is the main characteristic of striated muscles?

<p>Having long, thin lines (B)</p> Signup and view all the answers

Which muscle is responsible for extending the shoulder?

<p>Deltoid (B)</p> Signup and view all the answers

What is the term used to describe the attachment of a muscle that usually moves the least during a contraction?

<p>Origin (B)</p> Signup and view all the answers

Which type of muscle is characterized by slow, sustained contractions and is found in the walls of the gastrointestinal tract and blood vessels?

<p>Smooth muscle (C)</p> Signup and view all the answers

Which muscle is an example of an extrinsic muscle of the thoracic limb?

<p>Brachiocephalicus (D)</p> Signup and view all the answers

Which muscle extends the tarsus and flexes the stifle?

<p>Gastrocnemius (B)</p> Signup and view all the answers

What is the main function of the hypaxial muscles?

<p>Flex the vertebral column (C)</p> Signup and view all the answers

Where is the origin of the rectus abdominis muscle?

<p>Pelvic symphysis (A)</p> Signup and view all the answers

Which nerve innervates the adductor, hip extensor, and stifle flexor muscle?

<p>Obturator nerve (A)</p> Signup and view all the answers

What is the action of the epaxial muscle iliocostalis?

<p>Fixes vertebral column (D)</p> Signup and view all the answers

Which muscle is an extensor of the carpus?

<p>None of the above (D)</p> Signup and view all the answers
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