Anatomy Didactic Week 3 and 4 Que & Answ
1. inflammation of the common origin of the muscles at the lateral epicondyle
caused by overuse of extensors: what is tennis elbow, what causes it
2. brachialis muscle: cubital fossa floor
3. superficial fascia and skin, containing the median cubital vein: cubital fossa roof
4. TA
N!
lateral
tendon of biceps brachii
brachial artery
median nerve
medial: cubital fossa contents
5. bicipital aponeurosis
biceps tendon also attaches: what covers the brachial artery and me dian
nerve
6. lateral: brachioradialis
medial: pronator teres: cubital fossa sides
7. cephalic vein and basilic vein because they are superficial: blood tions? draw
loca-
8. deep to brachioradialis (came from the posterior arm, now on the lateral side of cubital fossa):
where does the radial nerve lie
9. superficial - pierces brachioradialis and continues on deep surface
, Anatomy Didactic Week 3 and 4 Que & Answ
deep - pierces supinator (commonly trapped there): branches of radial nerve
10.superficial: cutaneous, innervates dorsal surface of hand and digits deep: all posterior
forearm (extensors): what does each branch of the radial nerve supply
11. posterior to the medial epicondyle of the humerus
courses through the cubital tunnel: where does the ulnar nerve p as
s
, Anatomy Didactic Week 3 and 4 Que & Answ
12. roof: 2 heads of flexor carpi ulnaris aponeurosis (goes from medial epi- condyle to the
olecranon process)
floor: ulnar collateral ligament: what forms the cubital tunnel (floor and roof)
13.when the ulnar nerve is compressed under the attachment of flexor carpi ulnaris, elbow
flexion causes tautness: what is cubital tunnel syndrome?
14.cubital fossa: gateway between arm and forearm
15.carpal tunnel: gateway between hand and forearm
16.the interosseus membrane: what transmits force between the radius and ulna?
17.flexors (larger cross sectional area): what is more powerful: wrist extensors or flexors?
18.FCR, FCR, PL: primary wrist flexors
19.FDP, FDS, FPL: secondary wrist flexors
20.ECRL, ECRB, ECU: primary wrist extensors
21.EPL, EPB, EI, EDM, ED: secondary wrist extensors
22. grip requires a good bit of extension
ECRB is the most active: most active wrist extensor during grip
23. pronator teres and pronator quadratus
teres is powerful (it also crosses the elbow joint, so can flex elbow too) quadratus doesn't cross
elbow joint, so position not important: forearm prona- tors? which is for powerful pronation? which
is all pronation regardless of position?
24. supinator and biceps brachii (only functions in flexion??)
know more power can be generated in supination than pronation (because of cross sectional area)
- think about screwing a screwdriver, you tighten with supination: supinator muscles?
25.capitate bone of wrist: axis of motion for radial and ulnar deviation
26.(lateral) SLTP (medial) (proximal)
1. inflammation of the common origin of the muscles at the lateral epicondyle
caused by overuse of extensors: what is tennis elbow, what causes it
2. brachialis muscle: cubital fossa floor
3. superficial fascia and skin, containing the median cubital vein: cubital fossa roof
4. TA
N!
lateral
tendon of biceps brachii
brachial artery
median nerve
medial: cubital fossa contents
5. bicipital aponeurosis
biceps tendon also attaches: what covers the brachial artery and me dian
nerve
6. lateral: brachioradialis
medial: pronator teres: cubital fossa sides
7. cephalic vein and basilic vein because they are superficial: blood tions? draw
loca-
8. deep to brachioradialis (came from the posterior arm, now on the lateral side of cubital fossa):
where does the radial nerve lie
9. superficial - pierces brachioradialis and continues on deep surface
, Anatomy Didactic Week 3 and 4 Que & Answ
deep - pierces supinator (commonly trapped there): branches of radial nerve
10.superficial: cutaneous, innervates dorsal surface of hand and digits deep: all posterior
forearm (extensors): what does each branch of the radial nerve supply
11. posterior to the medial epicondyle of the humerus
courses through the cubital tunnel: where does the ulnar nerve p as
s
, Anatomy Didactic Week 3 and 4 Que & Answ
12. roof: 2 heads of flexor carpi ulnaris aponeurosis (goes from medial epi- condyle to the
olecranon process)
floor: ulnar collateral ligament: what forms the cubital tunnel (floor and roof)
13.when the ulnar nerve is compressed under the attachment of flexor carpi ulnaris, elbow
flexion causes tautness: what is cubital tunnel syndrome?
14.cubital fossa: gateway between arm and forearm
15.carpal tunnel: gateway between hand and forearm
16.the interosseus membrane: what transmits force between the radius and ulna?
17.flexors (larger cross sectional area): what is more powerful: wrist extensors or flexors?
18.FCR, FCR, PL: primary wrist flexors
19.FDP, FDS, FPL: secondary wrist flexors
20.ECRL, ECRB, ECU: primary wrist extensors
21.EPL, EPB, EI, EDM, ED: secondary wrist extensors
22. grip requires a good bit of extension
ECRB is the most active: most active wrist extensor during grip
23. pronator teres and pronator quadratus
teres is powerful (it also crosses the elbow joint, so can flex elbow too) quadratus doesn't cross
elbow joint, so position not important: forearm prona- tors? which is for powerful pronation? which
is all pronation regardless of position?
24. supinator and biceps brachii (only functions in flexion??)
know more power can be generated in supination than pronation (because of cross sectional area)
- think about screwing a screwdriver, you tighten with supination: supinator muscles?
25.capitate bone of wrist: axis of motion for radial and ulnar deviation
26.(lateral) SLTP (medial) (proximal)
