Podcast
Questions and Answers
How many bones are there in the upper limb?
How many bones are there in the upper limb?
Which muscle is NOT part of the pectoral region?
Which muscle is NOT part of the pectoral region?
Which of the following joints is responsible for movement at the elbow?
Which of the following joints is responsible for movement at the elbow?
Which bone is referred to as lateral in the forearm?
Which bone is referred to as lateral in the forearm?
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Which muscle is involved in shoulder movement and is located in the shoulder region?
Which muscle is involved in shoulder movement and is located in the shoulder region?
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How many phalanges are there in one hand?
How many phalanges are there in one hand?
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Which of the following joints enables rotation of the forearm?
Which of the following joints enables rotation of the forearm?
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Which of these muscles is classified as superficial in the back region?
Which of these muscles is classified as superficial in the back region?
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What is the primary function of the wrist joint?
What is the primary function of the wrist joint?
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Which of these muscles is NOT counted among the muscles of the forearm?
Which of these muscles is NOT counted among the muscles of the forearm?
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Study Notes
Upper Limb Anatomy
- The upper limb has 32 bones
- Arm bone: Humerus
- Shoulder: Clavicle & Scapula
- Forearm: Radius & Ulna
- Hand: 8 Carpals, 5 Metacarpals, 14 Phalanges
- Fingers are counted from lateral to medial
- The fingers except the thumb have 3 phalanges each
Joints of Upper Limb
- Acromio-clavicular joint
- Shoulder joint
- Superior/Proximal radioulnar joint
- Elbow joint
- Inferior/Distal radioulnar joint
- Intercarpal joint (mid-carpal)
- Metacarpophalangeal joint (MPJ)
- Interphalangeal joint (IPJ)
- Every joint moves
Muscles of Upper Limb
- Regions: Shoulder, back, pectoral region, arm, hand, forearm
- Pectoral region: Pectoralis major, Pectoralis minor, Subclavius, Serratus anterior
- The back region contains: Trapezius, Latissimus dorsi, Levator scapulae, Rhomboids major, Rhomboids minor
- Shoulder: Deltoid, Teres major, Teres minor, Supraspinatus, Infraspinatus, Subscapularis
- Arm: Biceps brachii, Brachialis, Coracobrachialis, Triceps brachii (posterior)
- Forearm: Brachioradialis, Anconeus, Supinator, Pronator teres, Flexor digitorum profundus, Extensor carpi radialis longus, Extensor carpi radialis brevis
- Hand: Lumbricals (writing position)
Arteries of Upper Limb
- First rib
- Subclavian artery
- Branches of the subclavian artery:
- Axillary artery
- Brachial artery
- Radial artery
- Ulnar artery
- Anterior, Posterior Circumflex humeral
- Profunda brachii
Veins of Upper Limb
- Subclavian vein
- Axillary vein
- Cephalic vein
- Basilic vein
- Cubital vein
Lymphatic Drainage of Upper Limb
- Parasternal lymph nodes
- Axillary lymph nodes
- Rectus diaphragmatic lymph nodes
Nerves of Upper Limb
- Brachial plexus (nerves from spinal cord form this plexus)
- Cervical & Thoracic nerves provide sensory + motor function
- Nerves of Brachial Plexus:
- Musculocutaneous nerve
- Axillary nerve
- Radial nerve
- Ulnar nerve
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Description
Test your knowledge on the anatomy of the upper limb, including bones, joints, and muscles. This quiz covers the humerus, clavicle, and various muscle groups. Challenge yourself to identify the structures and their functions in the upper extremity.
