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41 Cards in this Set
- Front
- Back
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Name the flexor muscles of the anterior ARM.
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1 Biceps Brachii
2 Coracobrachialis 3 Brachialis |
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Describe the Biceps Brachii, where they insert, and their function.
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Long Head origin in the supraglenoid tubercle.
Short Head origin in the coracoid process. Both insert into the Radial Tuberosity. They FLEX the arm at elbow. |
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Describe the coracobrachialis.
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Origins in coracoid process (Coraco-)
Inserts in the humerus Fxn to flex and ADduct arm at shoulder. |
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Describe the Brachialis.
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Origin in humerus.
Insert in coranoid process. MAIN FLEXOR of arm |
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What are the Anterior Flexor muscles innervated by?
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Musculocutaneous n.
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Name the Posterior Extensor muscles.
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Triceps Brachii
Anconeus |
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Describe the three heads of the Triceps Brachii
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Long Head - infraglenoid tubercle
Lateral Head- upper humerus Medial Head- lower humerus Think of going down the arm. And L comes before M. Long, Lateral, Medial |
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What innervates the posterior extensor muscles?
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The radial nerve.
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What muscle orgins in the supraglenoid tubercle?
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The long head of the biceps.
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What muscles are innervated by the musculocutaneous n?
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The anterior arm flexors.
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What muscle(s) inserts into the radial tuberosity?
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The long and short head of the biceps brachii
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What muscles origin in the coracoid process?
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Short head of the biceps and the coracobrachialis.
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What muscles insert into the coranoid process?
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The brachialis.
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Describe the first part of the axillary artery.
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The first part is b/t the first rib and the medial border of the pec minor.
One branch-Superior Thoracic a. |
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Describe the second part of the axillary artery.
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Posterior to the pec minor. (Behind it).
Two branches- Lateral Thoracic and the Thoracoacromial a |
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Describe the third part of the axillary artery.
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From lateral border of pec minor to inferior border of teres major
3 branches- Subscapular a. Posterior and Anterior circumflex humeral arteries |
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What part of the axillary artery does the superior thoracic artery origin?
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first part
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What part of the axillary artery does the subscapular artery branch?
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the third part
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Describe what muscles make up the triangular space.
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The teres major, subscapularis, and the long head of the triceps.
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What is the circumflex scapular artery?
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The artery that passes thru the triangular space. It contributes to a network of vessels around the scapula
(Picture) |
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Where does the brachial artery begin?
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The inferior border of the teres major muscle. it starts medially in the proximal arm, and then moves laterally in the distal arm. ends in cubital fossa
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What are the superior and inferior collateral ulnar arteries?
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They branch from the brachial artery in the ARM.
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What does the brachial artery give rise to in the ARM?
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the deep artery of the arm, and the superior and inferior ulnar collateral arteries
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What is the largest branch of the brachial artery?
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The profundus femoriis.
(gives rise to radial collateral arteries) |
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What is the median nerve accompanied by in the cubital fossa?
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The brachial artery
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Which artery is more superficial, the radial or the ulnar?
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radial is more superficial.
the ulnar is deeper to the FDS (flexor digitorum superficialis) |
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The best roommate ever
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Elizabeth C. Fegely
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Grossest thing to wake up to
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Cockroaches
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What does the ulna articulate with?
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The trochlea of the humerus
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What tendons go through the carpal tunnel?
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9 tendons. 4 flexor digitorum superficialis, 4 flexor digitorum profundus, and 1 pollicis longus
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What ligament makes the carpal tunnel?
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The flexor retinaculum
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What are the muscles that are superficial flexors in the forearm?
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Pronator teres
Flexor carpi radialis Flexor carpi ulnaris Palmeris Longus |
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What are the superficial flexors innervated by?
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Median nerve except FCU
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What are the deep flexor muscles?
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Flexor Digitorum profundus
pronator quadratus flexor pollicis longus |
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What is the intermediate flexor muscle?
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Flexor digitorum superficialis
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What does the palmar carpal ligament do?
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Holds the tendons of the flexor muscles in place...along with the flexor retinaculum.
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What is the CFO?
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Common Flexor Origin...
medial epicondyle |
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What is the main pronator of the flexor muscles?
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the pronator quadratus. (deep)
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What is the difference between the superficial radial nerve and the deep radial nerve?
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Superficial is mostly sensory.
Deep pierces supinator and becomes the posterior interosseous nerve. |
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What does the median nerve innervate?
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All flexor muscles except the flexor carpi ulnaris and 1/2 medial of flexor digitorum profundus.
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What are the boundaries of the antaomical snuff box?
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ABductor pollicis longus (deeper)
Extensor pollicis brevis Extensor pollicis longus |
