Podcast
Questions and Answers
How many bones are present in the upper limb?
How many bones are present in the upper limb?
- 34
- 36
- 30
- 32 (correct)
Which bone of the upper limb is considered lateral?
Which bone of the upper limb is considered lateral?
- Radius (correct)
- Clavicle
- Ulna
- Humerus
What type of joint is the acromio-clavicular joint classified as?
What type of joint is the acromio-clavicular joint classified as?
- Hinge joint
- Ball and socket joint
- Saddle joint
- Plane joint (correct)
Which muscle is not part of the pectoral region?
Which muscle is not part of the pectoral region?
Which muscle is primarily responsible for flexion at the elbow?
Which muscle is primarily responsible for flexion at the elbow?
In which region is the muscle 'rhomboid minor' located?
In which region is the muscle 'rhomboid minor' located?
Which of the following is not a carpal bone?
Which of the following is not a carpal bone?
Which muscle is located in the shoulder region and aids in arm movement?
Which muscle is located in the shoulder region and aids in arm movement?
What is the main function of the inferior 'distal' radioulnar joint?
What is the main function of the inferior 'distal' radioulnar joint?
Which of the following muscles belongs to the anterior arm musculature?
Which of the following muscles belongs to the anterior arm musculature?
Flashcards
What is the clavicle?
What is the clavicle?
The clavicle is a bone that connects the shoulder to the sternum.
What is the humerus?
What is the humerus?
The humerus is the bone located in the upper arm, extending from the shoulder to the elbow.
Which bone is located on the thumb side of the forearm?
Which bone is located on the thumb side of the forearm?
The radius is the bone on the thumb side of the forearm, extending from the elbow to the wrist.
Which bone is on the pinky finger side of the forearm?
Which bone is on the pinky finger side of the forearm?
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What joint connects the clavicle and scapula?
What joint connects the clavicle and scapula?
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What joint connects the sternum and clavicle?
What joint connects the sternum and clavicle?
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What joint connects the humerus to the radius and ulna?
What joint connects the humerus to the radius and ulna?
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What are the 8 small bones in your wrist?
What are the 8 small bones in your wrist?
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What are the 5 long bones in your palm?
What are the 5 long bones in your palm?
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What are the bones of your fingers called?
What are the bones of your fingers called?
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Study Notes
Upper Limb Anatomy
- Bones: The upper limb has 32 bones. Clavicle (collarbone), scapula (shoulder blade), humerus (arm bone), radius and ulna (forearm bones), carpals (wrist bones), metacarpals (hand bones), and phalanges (finger bones). Fingers are counted from lateral to medial.
- Arm Bones: The humerus is the main bone of the arm
- Forearm Bones: The radius and ulna are the main bones in the forearm. Radius is located laterally. Ulna is located medially.
- Wrist/Hand: Includes 8 carpal, 5 metacarpal, and 14 phalangeal bones.
- Joints: The upper limb has various joints, including the sternoclavicular joint (connecting the clavicle to the sternum), the acromioclavicular joint (between the clavicle and scapula), the shoulder joint (glenohumeral joint), the elbow joint (humeroradial and humeroulnar joints), the wrist joint (radiocarpal), and the carpals (intercarpal), metacarpophalangeal (MCP), and interphalangeal (IP) joints.
- Shoulder Joint: Superior and proxinal radioulnar joints, middle joint ,inferior or distal radioulnar joint
- Muscles: The muscles responsible for movement of the upper limb are located in regions like the shoulder and pectoral region.
- Shoulder Region: Trapezius, Latissimus dorsi, Levator scapulae, Rhomboid major, Rhomboid minor, Deltoid, Teres major, Teres minor, Supraspinatus, Infraspinatus, and Subscapularis.
- Pectoral Region: Pectoralis major, Pectoralis minor, Subclavius, and Serratus anterior.
- Arm: Biceps brachii, Brachialis, Coracobrachialis, Triceps brachii (posterior)
- Forearm: Pronator teres, Brachioradialis, Anconeus, Supinator, Flexor digitorum profundus, Extensor carpi radialis longus, and Extensor carpi radialis brevis.
- Hand: Lumbricals (responsible for finger movement)
- Arteries: The subclavian artery branches into the axillary artery, which branches into the brachial artery. This further divides into the radial and ulnar arteries. Branches include: transverse cervical, suprascapular, and internal thoracic arteries.
- Veins: Veins, including the subclavian veins, axillary veins, and other veins in the upper limb.
- Lymphatics: Lymphatic drainage of the upper limb involves the axillary lymph nodes, parasternal and diaphragmatic lymph nodes.
- Nerves: The brachial plexus provides nerves to the upper limb muscles. Nerves include axillary, radial, median, ulnar, and musculocutaneous. These nerves stem from the spinal cord to form the plexus. The spinal cord C nerve regions and T nerve regions provide the nerves to the upper limb.
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Description
Test your knowledge of upper limb anatomy, including the bones, joints, and structure of the arm, forearm, and hand. This quiz covers key terms and concepts, such as the clavicle, humerus, radius, and the various joints involved. Perfect for students and enthusiasts of human anatomy.
