ANATO(killme)Y FINAL - Get Arms #2

lunalovegood's version from 2015-12-06 19:46


Question Answer
There are _________ flexor muscles.8
There are _________ extensor muscles.12
What 2 carpals articulate with radius in wrist joint?scaphoid and lunate
Name 4 carpal bones.scaphoid, lunate, triquetrum, pisaform
Almost ALL flexors are supplied by the _________ nerve.median nerve
Which flexors ARE NOT supplied by median nerve?flexor carpi ulnaris and the medial 1/2 of flexor digitorum profundus
MOST flexors are supplied by median nerve. Flexor carpi ulnaris and the medial 1/2 of flexor digitorum profundus are supplied by...ulnar nerve
What nerve is associated with carpal tunnel?median nerve (under fibrous band)
Superficial and deep flexors of digits enter hand beneath ...flexor retinaculum
Do the ulnar nerve and artery go under or over the fibrous sheath?OVER (that's why not affected by carpal tunnel)
Ulnar artery divorces the ___ nerve for her soulmate, the ulnar nerve.median nerve
What is the landmark between anterior and posterior forearm compartments?bracoradialis muscle
Name 3 muscles whose tendons are in the snuffbox of the hand.abductor pollicis longus - extensor pollicis longus - extensor pollicis brevis
What abducts the thumb?abductor pollicis longus (or aliens)
Synovial sheaths on extensor tendons extensor retinaculum
The ulnar nerve passes under...the medial epicondyle of humerus (funny bone)
Where is the radial artery pulse?anatomical snuffbox
Name 3 small muscles group that originate and insert on hand.thenar, hypothenar, and midpalmar
Thenar group base of ___. Hypothenar ___. Midpalmar?thumb, pinkie finger, between
Adductor pollicis, opponens pollicis, and abductor pollicis brevis are all in...thenar group
What do palmar interosseous muscles do?adduct digits at MP joint
Damage where causes ape hand?median nerve above elbow joint
Flexor retinaculum AKA...transverse carpal ligament (according to wikipedia... but not according to the powerpoint... idk)
Injury to median nerve beneath transverse carpal ligament results in...affected thenar eminence + 1&2 lumbricals
In carpal tunnel syndrome, is the skin over thenar eminence affected?no, because the cutaneous branch doesn't go through the tunnel (palmar cutaneous branch of median nerve)
Carpals are ___ (convex, concave) anteriorly. Carpal ligament covers. Contains _________ _________ and median nerve.concave, long tendons (tendinitis squishes median nerve)
T/F - Carpal Tunnel Syndrome - median nerve is only nerve affected. Pt. will present with atrophy of the thenar compartment muscles and weakness of thenar muscles.T
What damage causes claw hand?ulnar nerve damage
What damage causes wrist drop?radial nerve damage (palsy)


Nerve supply
Question Answer
Brachioradialisradial nerve
Extensor carpi radialis longusradial nerve
Extensor carpi radialis brevisradial nerve
Extensor digitorumradial nerve
Extensor digiti minimiradial nerve
Extensor carpi ulnarisradial nerve
Abductor pollicis longusradial nerve
Extensor pollicis longusradial nerve
Extensor pollicis brevisradial nerve
Extensor indicisradial nerve
Supinatorradial nerve
Skin of palm & half of ring finger. Plus middle, index and thumb parts.median nerve
Thenar musclesmedian nerve
Palmaris longusmedian nerve
lateral 1/2 of flexor digitorum profundusmedian nerve
Pronator teresmedian nerve
Flexor carpi radialismedian nerve
Flexor digitorum superficialismedian nerve
Flexor pollicis longusmedian nerve
Pronator quadratusmedian nerve
Abductor pollicis brevismedian nerve
Opponens pollicismedian nerve
Lumbricals 1 and 2median nerve (pointer and middle)
Lumbricals 3 and 4ulnar nerve (ring and pinkie)
Palmar interosseous musclesulnar nerve
Flexor carpi ulnarisulnar nerve
medial 1/2 of flexor digitorum profundusulnar nerve
Intrinsic muscles of handulnar nerve
Flexor digiti minimiulnar nerve
Adductor pollicisulnar nerve
Hypothenar musclesulnar nerve
All interosseiulnar nerve
Skin of little finger and half of ring fingerulnar nerve


Where's Waldo (nerve edition)
Question Answer
Between biceps brachii and brachialismusculocutaneous nerve
Goes into coracobrachialismusculocutaneous nerve
Medial/posterior to biceps, branches into forearm flexors at elbow, then to hand through carpal tunnel.median nerve
Medial in arm, posterior to medial epicondyle of humerus, down medial forearm to carpal tunnel into palmulnar nerve
Deep posterior arm around lateral epicondyle of humerus, to forearmradial nerve
Goes between the two heads of the pronator teresmedian nerve
Goes between medial and lateral heads of tricepsradial nerve
Destruction of this area would likely cause weakness in supination and flexion of the forearm.radial tuberosity (site of tendinous attachment for biceps, which supinate and flex the forearm.)
Destruction of this area would likely cause weakness of pronation of forearm and flexion of wrist joints.medial condyle (origin of common flexor tendon and pronator teres. Pronator quadratus still good. Flexor pollicis longus, flexor digitorum superficialis and profundus muscles can weakly do some flexing)

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