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71 Cards in this Set
- Front
- Back
What supplies cutaneous innervation in shoulder region?
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Branches from axillary nerve
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What supplies cutaneous innervation on medial surface of arm? (2)
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1. medial brachial cutaneous
2. Intercostobrachial |
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What supplies cutaneous innervation of posterior & lateral arm?
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Branches of radial nerve
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What supplies cutaneous innervation of anterior surface of arm?
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Medial antebranchial cutaneous
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Superficial veins of the arm are the? (2)
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1. Cephalic vein (lateral)
2. Basilic vein (medial) |
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What are the superficial lymph nodes of the arm? (2)
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1. Cubital lymph nodes
2. Deltopectoral nodes |
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What are the fascia found in the arm?
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1. Superficial fascia
2. Brachial fascia (deep fascia) 3. Medial & lateral intermuscular septa |
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What is the function of the medial & lateral intermusclar speta?
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Connect brachial (deep) fascia to humerus & divide arm into anterior & posterior compartments
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What are the muscles of the anterior compartment of the arm (3)
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1. Biceps brachii
2. Brachialis 3. Coracobrachialis |
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What is the innvervation to the muscles of the anterior compartment of the arm?
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Musculocutaneous nerve
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The muscles of the anterior compartment of the arm all do what general action?
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Anterior = FLEXORS
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What are the actions of the biceps brachii? (2)
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1. Supinates forearm
2. Flex supinated forearm |
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What is the action of the brachialis?
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Flexes arm
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What are the actions of the coracobrachialis? (2)
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1. Flexion of arm
2. Adduction of arm |
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What are the muscles of the posterior compartment of the arm?
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1. Triceps brachii
2. Anconeus |
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What is the action of the triceps brachii?
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Extends forearm
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What is the action of the aconeus? (2)
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1. Aids in extension of forearm
2. Stabilizes elbow |
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What is the innervation to the muscles of the posterior compartment of the arm?
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Radial nerve
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What is the principal blood supply to the arm?
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Brachial artery
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Brachial artery is a continuation of what artery?
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Axillary artery --> Brachial arter at lower border of teres major
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The brachial artery gives off which branches in the arm? (2)
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1. Deep brachial artery
2. Anastomotic branches |
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At the cuboidal fossa the brachial artery divides to become?
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Radial artery
Ulnar artery |
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Which veins join w/ the basilic vein to form the axillary vein?
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Venae comitantes of the brachial artery
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What is the superior boundary of the cubitall fossa?
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Between lateral & medial epicondyles of humerus
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What is the medial boundary of the cubitall fossa?
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Pronator teres
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What is the lateral boundary of the cubital fossa?
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Brachioradialis
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What 2 muscles make up the floor of the cubital fossa?
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Brachialis & supinator
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What makes up the roof of the cubital fossa?
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-Deep fasica
-Bicipital aponeurosis -Superficial fascia -Skin |
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Which arteries are found in the cubital fossa?
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Brachial artery -->
-Raidal artery -Ulnar artery |
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Which veins are found in the cubital fossa (2)?
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1. Brachial veins
2. Medial cubital vein |
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Which nerves are found in the cubital fossa (4)
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1. Median nerve
2. Radial nerve 3. Medial antebrachial cutaneous 4. Lateral antebrachial cutaneous |
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Which bone is found medially in forearm?
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Ulna
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Which bone is found laterally in forearm?
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Radius
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What are the 4 articulations of the radius?
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1. Capitulum of humerus
2. Radial notch of ulna 3. Distal ulna 4. Scaphoid & lunate bones |
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What features are present at distal end of radius? (2)
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1. Ulnar notch
2. Styloid process |
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What features are present at the proximal end of ulna? (4)
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1. Trochlear notch
2. Olecranon 3. Coronoid process 4. Radial notch |
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What fascial structures are present in the forearm? (4)
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1. Superficial fascia
2. Antebrachial fascia 3. Intermuscular septa- med & lat 4. Interosseous membrane |
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What are the superficial muscles of the anterior compartment of the forearm? (4)
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1. Pronator teres
2. Flexor carpi radialis 3. Palmaris longus 4. Flexor carpi ulnaris |
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All of the superficial muscles in the anterior compartment of the forearm are innervated by __________ except which muscle?
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MEDIAN NERVE
EXCEPT: Flexor Carpi Ulnaris = ULNAR NERVE |
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What is the action of the pronator teres? (2)
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1. Pronation
2. Flexion of forearm |
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What is the action of the flexor carpi radialis? (2)
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1. Flexion of wrist
2. Abduction of wrist |
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What is the function of the palmaris longus? (3)
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1. Flexion of wrist
2. Tension of palmar fascia 3. Abduction of thumb |
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What is the function of the flexor carpi ulnaris? (2)
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1. Flexion of wrist
2. Adduction of wrist |
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What muscle is in the middle layer of the anterior compartment of the forearm?
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Flexor digitorum superficialis
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What muscles are in the deep layer of the anterior compartment of the forearm?
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1. Flexor digitorum profundus
2. Flexor pollicis longus 3. Pronator quadratus |
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What innervates the flexor digitorum superficialis?
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Median nerve
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Flexor digitorum profundus is innervated by?
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-Medial half = Ulnar nerve
-Lateral half = Anterior interosseous nerve |
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What is the action of the flexor digitorum superficialis?
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Flex middle phalanx of digits 2-5
Flex hand & wrist |
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What is the action of the flexor digitorum profundus?
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Flex distal phalanx of digits 2-5
Flex hand & wrist |
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What is the action of the flexor pollicis longus?
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Flexes distal phalanx of thumb
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What is the action of the pronator quadratus?
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Pronates forearm
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What muscles are in the superficial layer of the posterior compartment of the forearm? (6)
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1. Brachioradialis
2. Extensor carpi radialis longus 3. Extensor carpi radialis brevis 4. Extensor carpi ulnaris 5 Extensor digitorum 6. Extensor digiti minimi |
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What muscles are in the deep layer of the posterior compartment of the forearm? (5)
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1. Supinator
2. Abductor pollicis longus 3. Extensor pollicis brevis 4. Extesnor pollicis longus 5. Extensor indicis |
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What is the action of the brachioradialis?
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Flex elbow
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What is the action of the extensor carpi radiallis longus? (2)
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1. Extends wrist
2. Abduct hand |
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What is the action of the extensor carpi radialis brevis? (2)
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1. Extends wrist
2. Abduct hand |
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What is the action of the extensor carpi ulnaris? (2)
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1. Extend wrist
2. Adduct wrist |
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What is the action of the extensor digitorum?
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Extend phalanges & wrist
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What is the action of extensor digiti minimi?
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Extends 5th digit
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What is the action of the supinator?
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Supinates forearm
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What are the actions of the abductor pollicis longus? (2)
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1. Abduct thumb
2. Extend thumb |
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What is the action of the extensor pollicis longus?
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Extends thumb
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What are the actions of the extensor indicis?
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1. Extend index finger
2. Adduct index finger |
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The muscles of the posterior compartment of the forearm are innervated by?
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Radial nerve
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What arteries branch off the radial artery? (3)
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1. Superficial palmar branch
2. Deep branch 3. Branches to thumb & index |
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What arteries branch off the ulnar artery? (3)
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1. Common interosseus
-Anterior interosseous -Posterior interosseous 2. Superficial branch 3. Deep branch |
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What are the superficial veins of the forearm? (3)
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1. Cephalic
2. Basilic 3. Median cubital |
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What nerves branch off the radial nerve in the forearm?
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1. Muscular branches
2. Superficial branch 3. Deep branch |
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The deep branch of the radial nerve terminates as?
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Posterior interosseous nerve
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The median nerve gives off which branches? (5)
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1. Muscular branches
2. Anterior interosseous branch 3. Superficial palmar branch 4. Recurrent branch to thenar muscles 5. Digital branches |
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The ulnar nerve gives off which branches? (3)
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1. Muscular branches
2. Superficial branch 3. Deep branch |