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Sysanatomyfc

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robbypowell's version from 2015-12-06 20:26

Section

Question Answer
how many carpal bones are there?8 (on each hand)
Lateral boundary of Anatomical snuffboxExtensor pollicis brevis (muscle)
Medial boundary of Anatomical snuffboxExtesnor pollicis longus (muscle)
Floor of Anatomical snuffbox(2 bones) Scaphoid & styloid of Radius
What arterial pulse can you detect in Anatomical Snuffbox?Radial Artery (content)
___ muscles of the wrist and hand originate on the forearm, not the wrist or hand.Extrinsic
Both the ____ ____ and the ____ ____ are located in the anterior compartment of the forearm, their primary function is pronationPronator teres & Pronator quadratus
The supinator muscle is in the ______ compartment of the forearmPosterior
At the wrist, the deep fascia of the forearm forms thickened, fibrous bands termed _____Retinacula
_____ hand muscles originate and insert on the hand.Intrinsic
_____ muscle group forms the thick, fleshy mass at the base of the thumbThenar (Thenar eminence)
_____ muscle group forms a smaller fleshy mass at the base of the little fingerHypothenar (Hypothenar eminence)
Is adductor pollicis intrinsic or extrinsic hand muscle?Intrinsic (Thenar)
Is abductor pollicis longus intrinsic or extrinsic hand muscle?Extrinsic
Is abductor pollicis brevis intrinsic or extrinsic hand muscle?Intrinsic (Thenar)
All Intrinsic muscles of the hand are supplied by ____ nerve except for _____ muscles and one half of the _____... these are supplied by the ____ nerveUlnar n.; Thenar & 1/2 Lumbricals; Median n.
Damage to Median n. above elbow would affect Thenar muscles EXCEPT ____ ____Adductor Pollicis (deep branch of Ulnar n.)
Muscles affected by Carpal Tunnel syndromeTHENAR muscles + 1st & 2nd LUMBRICALS (median n.)
condition with sensory loss or pattern of paresthesia of skin of palm & half of ring finger plus middle, index & thumbCarpal tunnel syndrome
condition with compression of the median nerve at the carpal tunnelCarpal tunnel syndrome
Contents of carpal tunnellong tendons, Median nerve
What covers the carpal tunnel (intimately)Carpal ligament (not Flexor Retinacula which is superficial to Carpal ligament)
What dermatome is counter-intuitively spared in patients with Carpal tunnel syndrome, even though it is innervated by a branch of median n.?Thenar eminince (cutaneous branch that supplies does not go through tunnel)
"Ape hand" is a diagnostic feature of ____ nerve damageMedian n.
"Claw hand" is a diagnostic feature of ____ nerve damageUlnar n.
"Wrist drop" is a diagnostic feature of ____ nerve damageRadial n.
Radial n. is formed from the _____ cordPosterior cord
What are the structures passing through the spiral groove?Radial n. and Profunda brachii artery (aka Deep brachial artery)
Blood supply of wrist and hand comes from ____ & ____ arteriesRadial & Ulnar arteries
What nerve is damaged in "Saturday night palsy"?Radial n. (same as wrist drop)
Destruction of this boney area would most likely cause weakness of supination and flexion of the forearm.Radial tuberosity
Destruction of this boney area would most likely cause weakness of pronation of the forearm and flexion of the wrist jointsMedial epicondyle
what is the nerve of the posterior compartment?Radial n.
memorize

nerve supply

Question Answer
1st and 2nd Lumbrical muscles are supplied by _____ nerveMedian n.
3rd and 4th Lumbrical muscles are supplied by _____ nerveUlnar n.
PALMAR INTEROSSEOUS MUSCLES are supplied by what nerve?Ulnar (intrinsic muscles of hand)
All Intrinsic muscles of the hand are supplied by ____ nerve except for _____ muscles and one half of the _____... these are supplied by the ____ nerveUlnar n.; Thenar & 1/2 Lumbricals; Median n.
PALMARIS LONGUSMedian n.
•FLEXOR CARPI RADIALISMedian n.
•FLEXOR DIGITORUM SUPERFICIALISMedian n.
•LATERAL ½ OF FLEXOR DIGITORUM PROFUNDUSMedian n.
•PRONATOR TERES & QUADRATUSMedian n.
•FLEXOR POLLICIS LONGUSMedian n.
•THENAR MUSCLESMedian n.
•LUMBRICAL 1 & 2Median n.
SKIN OF PALM & HALF OF RING FINGER PLUS MIDDLE, INDEX AND THUMB (lateral 3 1/2 fingers)Median n.
FLEXOR CARPI ULNARISUlnar n.
•MEDIAL ½ OF FLEXOR DIGITORUM PROFUNDUSUlnar n.
•HYPOTHENAR MUSCLESUlnar n.
•LUMBRICAL 3&4Ulnar n.
•ADDUCTOR POLLICISUlnar n.
•ALL INTEROSSEIUlnar n.
SKIN OF LITTLE FINGER & HALF OF RING FINGERUlnar n.
Triceps brachiiRadial n.
Lies between brachoradialis and brachialis at elbowRadial n.
BRACHIORADIALISRadial n.
EXTENSOR DIGITORUMRadial n.
EXTENSOR DIGITI MIMIMIRadial n.
EXTENSOR INCICISRadial n.
EXTENSOR CARPI RADIALIS LONGUS & BREVISRadial n.
EXTENSOR CARPI ULNARISRadial n.
SUPINATORRadial n.
EXTENSOR POLLICIS LONGUS & BREVISRadial n.
ABDUCTOR POLLICIS LONGUSRadial n.
travels between the two heads of pronator teres muscleMedian n.
travels between the med. And lat. heads of the triceps brachii muscleRadial n.
travels between tendons of Flexor carpi radialis & Palmaris longusMedian n.
travels between Flexor carpi ulnaris & Palmaris longusUlnar n.
memorize

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