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74 Cards in this Set
- Front
- Back
is the lateral or medial facet of the clavicle the flatter end?
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the medial facet is flatter
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what 2 muscles attach to the lateral border of the scapula?
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1. teres minor
2. teres major |
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what are the 3 muscles that attach to teh coracoid process of teh scapula?
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1. short head of biceps
2. coracobrachialis 3. pectoralis minor |
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muscle that attaches to supraspinous fossa?
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supraspinatus muscle
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muscle that attaches to infraspinous fossa
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infraspinatus muscle
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what attaches to the subscapular fossa (anterior surface)?
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subscapularis muscle
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muscle attachment to supraglenoid tubercle?
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long head of biceps muscle
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muscle attachment to infraglenoid tubercle?
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long head of triceps muscle
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what are the 3 muscle attachments to the greater tubercle of the humerus?
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supraspinatus, infraspinatus, teres minor
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what is the muscle attachment to the lesser tubercle?
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subscapularis
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what is the space between the proximal tubercles on the humerus called?
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intertubercular sulcus (bicipital groove) - and its medial and lateral lips
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what are the 2 structures coursing adjacent to the sugical neck of teh humerus?
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axillary nerve and posterior circumflex humoral artery and vein
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what is the vein connecting the basilic and cephalic veins in the cubital fossa?
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the median cubital vein
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what forms the anterior border of the axilla?
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pec minor and pec major
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what forms the medial (thoracic) border of the axilla?
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serratus anterior
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what innervates the serratus anterior? what is the implication if it is paralysed>?
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the long thoracic nerve
"winged scapula" |
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what forms the posterior wall of the axilla?
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subscapularis
teres major tendon of latissimus dorsi |
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what forms the lateral wall of the axilla?
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tendon of the long head of the biceps and intertubercular groove
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what passes through the quadrangular space?
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axillary artery and posterior circumflex humoral vessels
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what passes through the triangular space?
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circumflex scapular vessels
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what passes through the triangular interval
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radial nerve
profunda brachii vessels |
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what arteries branch off the 2nd part of the axillary artery?
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thoracoacromial artery
lateral throacic artery |
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what arteries branch off the 3rd part of the axillary artery?
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anterior circumflex humoral artery
posterior circumflex humoral artery subscapular artery (which gives rise to circumflex scapular artery) |
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what does the deltoid muscle insert into?
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deltoid tuberosity
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what is the muscle a/w the medial epicondyle of the humerus?
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the common flexor ORIGIN
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what is the muscle a/w the lateral epichondyle of the humerus?
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common extensor origin
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what is the fossa lying above the trochlea on the humerus called?
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coronoid fossa
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what is the fossa lying above teh capitulum on the humerus called?
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radial fossa
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is the trochlea of the humerus on the medial or lateral side?
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medial side
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what muscle is a/w with the olecranon of the ulna?
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attachment of triceps brachii tendon
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what fits in to the coronoid and radial fossa of the humerus?
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the coronoid notch and the radial notch of the ULNA (radius doensn't do shit)
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what attaches onto the ulnar tuberosity?
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brachialis muscle
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what attaches to the radial tuberosity of the radius?
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biceps brachii tendon
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what are the 2 ligaments at the elbow joint called
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radial collateral ligament
ulnar collateral ligament |
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contents of the cubital fossa
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1 vein, 1 artery, 1 nerve, 1 tendon:
-median cubital vein -brachial artery -median nerve -biceps tendon |
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what forms the medial border of the cubital fossa?
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pronator teres
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what forms the lateral border of the cubital fossa?
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brachialis
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what forms the floor of the cubital fossa
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brachialis and supinator muscles
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what is the annular ligament?
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forms a ring around the head of the radius
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what muscles does the anterior interosseus nerve (of the median nerve) supplyy?
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the deep muscles for the arm:
1. LATERAL ASPECT of flexor digitorum profundus 2. flexor pollicis longus 3. pronator quadratus |
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what is the innervation of flexor digitorum profundus?
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lateral aspect = anterior interosseus branch of median nerve
medial aspect = ulnar nerve |
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what do the common digital branches of the MEDIAN nerve supply?
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1st and 2nd lumbrical muscles
thenar muscles skin of the first 3.5 digits |
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waht supplies teh pronator quadratus?
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the anterior interosseus nerve (branch of median nerve)
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starting at the ulnar artery, list the branches
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ulnar artery --> common interosseus artery --> ant. and post. interosseus arteries
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if you see a vein in teh deltopectoral groove, which will it be?
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the cephalic vein. This is where it pierces the deep fascia and empties into the axillary vein
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where do the lateral and medial pectoral nerves come off of?
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lateral pectoral nerve = lateral cord (before it gives rise to teh musculocutaneous nerve)
medial pectoral nerve = medial cord (before it gives rise to the ulnar nerve) |
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name one function of the pec major
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adduction
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name one function of the pec minor
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puills the shoulder tip down
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name one function of the subclavius muscle
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pulls the shoulder tip down
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name one function of serratus anterior
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protraction and rotation of the scapula
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innervation of pec major
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lateral and medial pectoral nerves
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innervation of pec minor
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medial pectoral nerve
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waht is the innervation of serratus anterior?
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long thoracic nerve
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what does the axilary nerve innervate?
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teres minor and deltoid
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what is the deltoid innervated by?
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axillary n
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what is teres minor innervated by? (NOT PEC...we're talking about TERES!)
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axillary nerve
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which is the largest branch of the axillary artery?
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subscapular artery
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what is the fate of the subscapular artery?
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gives off the circumflex scapulary artery which then travels through the triangular space.
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where is the suprascapular artery located? and what is it a branch of?
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is it located above the superior transverse ligament (suprascapular notch). It is a branch of the subclavian artery.
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what are the branches of the posterior cord?
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STAR:
subscapular nerves (superior and inferior n) Thoracodorsal nerve (to latissimus dorsi) Axillary nerve Radial nerve |
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what segments correspond to the long thoracic nerve?
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C5,6,7
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Branches of the medial and lateral cords (only the ones we need to know)
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LATERAL CORD
-lateral pectoral n. -lateral root of median nerve -musculocutaneous nerve MEDIAL CORD -medial pectoral nerve -medial root of median nerve -ulnar nerve |
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list the muscles in the anterior comparement of the arm
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1. coracobrachialis
2. brachialis 3. biceps brachii (long and short heads) |
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what is the origin of corachobrachialis?
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the coracoid process of the scapula
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where does the long head of the biceps brachii originate? insert?
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originates: onto the supraglenoid tubercle
insertion: biceps tendon --> radial tuberosity |
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where does the short head of the biceps brachii originate? insert?
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origin: coracoid process of scapula
insert: biceps tendon --> radial tuberosity |
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where does the brachialis insert?
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inserts on the ulnar tuberosity
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what innervates the anterior comparemtns of the arm?
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musculocutaneous nerve
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what are the nerves of the posterior arm?
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triceps brachii (medial, long, and lateral heads)
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where do the triceps muscles incert?
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triceps tendon --> olecranon of ulna
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anconeus origin and insertion
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origin: lateral epicondyle
insertion: olecranon of the ulna |
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function of the triceps brachii
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extension of the forearm at the elbow joint
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function of anconeus
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extension of the forearm at the elbow joint
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the anterior interosseus nerve is a branch of? the posterior interosseus nerve is a branch of?
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anterior interosseus nerve: median nerve
posterior interosseus nerve: radial nerve (after the deep branch pierces the supinator it is called the posterior interosseus branch) |