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