Unit I Lec 15-16 Flashcards by Brad H

Forearm sensation lateral/antelateral area is from

lateral antebrachial cutaneous n

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lateral antebrachial cutaneous n is a branch of what n

musculocutaneous n

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Forearm sensation mesial anteromedial is from what n

medial antebrachial cutaneous n

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Forearm sensation posterior is from what n

posterior antebrachial cutaneous n

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What n pierces coracobrachialis before is innervates anything

musculocutaneous n

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Posterior antebrachial cutaneous n is a branch of what n

radial n

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Injury to coracobrachialis would cause what problems

sensory to lateral part of forearm, elbow flexion

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Term for impingement of musculocutaneous n (or any n)

entrapment

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Terms for anterior side of the hand

palmar, volar

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Term for posterior side of hand

dorsum

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Joint between the radius and ulna at wrist

distal radioulnar joint

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Joint between the radius and scaphoid/lunate at wrist

radiocarpal joint

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Radiocarpal joint type of joint

condylar joint

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Distal radioulnar joint is what type of hoint

pivot joint

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Anterior/posterior thickenings at distal radioulnar joint

articular capsule

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Cartilage that hooks onto ulnar styloid

triangular fibrocartilage

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Triangular fibrocartilage form what

articular disk

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Thick, tough, yet pliable membrane in radiocarpal joint

articular capsule

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Ligaments on the back and front of wrist carpals

dorsal and volar radiocarpal ligaments

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Wrist ligaments on the medial and lateral sides of the wrist

ulnar and radial collateral ligaments

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Plane joints between carpals

intercarpal joints

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Ligaments between intercarpal joints

intercarpal ligaments (dorsal/palmar)

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Two rows of carpal bones are named

proximal and distal rows

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Joint between proximal nad distal rows of carpal bones

midcarpal joint

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Main function of intercarpal joint

wrist flexion

Largest of all carpal bones

capitate

Carpal bone with hook

hamate

Carpal bone that articulates with metacarpal 1

trapezium

Most frequently fractured carpal (70%)

scaphoid

Terms for fx of distal radius

colles fx

Three parts of metacarpal bones

base, shaft, head

Hand joint that is a saddle joint

1st carpometacarpal joint

Hand joints that are gliding joints

carpometacarpal joints 2-5

Digits 2-5 have what 3 phalanges

proximal, middle, distal

Digit 1 has what phalanges

proximal and distal

Joint type of first metacarpophalangeal joint

hinge joint

Joint type MCP joints 2-5

condyloid joints

Interphalangeal joint (IP), proximal and distal IP joints (PIP, DIP) joint type

hinge joints

MCP ligament that runs between heads of metacarpals 2-5

deep transverse metacarpal ligament

Fibrocartilage ligament that covers the MCP joints on volar surface

palmar plates

PIP, DIP, and IP hinge joints have what 2 ligaments

medial and collateral ligaments

MCPs 2-5 (condyloid ligaments) what 4 ligaments

medial/lateral collateral ligaments, dorsal/volar ligaments

MCP 1 hinge joints has what2 ligaments

medial/collateral ligaments

All digit joints have what universal feature

joint capsule

Fascia on the palm

palmar aponeurosis

Fascia that covers the thenar and hypothenar eminence

thenar and hypothenar fascial sheaths

Tough strand of fascia between thenar and hypothenar eminence

flexor retinaculum

Flexor retinaculum covers what tunnel

carpal tunnel

Ligament covering carpals proximal to flexor retinaculum

palmar carpal ligament

Palmar aponeurosis is continuation of what fascia

antebrachial fascia

Muscle that inserts into palmar aponeurosis, not into a bone

palmeris longus

Thenar mx, hypothenar mx, intermediate compartment are what type of hand mx

intrinsic mx

Abductor digiti minimi, flexor digiti minimi brevis, opponens digiti minimi, and palmaris brevis are what type of hand mx

hypothenar mx

Small hand mx that corrugates skin to easier gripping, absent in 9% of population

palmeris brevis

Hand mx that abducts little finger

abductor digiti minimit

Hand mx that flexes little finger

flexor digiti minimi brevis

Mx that wraps around little finger for opposition to thumb

opponens digiti minimi

Palmeris brevis is located on what side of hand

hypothenar side

Hypothenar mx are innervated by

deep ulnar n

palmeris brevis is innervated by what n

superficial volar branch of ulnar nerve

Ulnar n and ulnar artery pass through hole between hamte and pisiform called

guyon's canal

Adductor pollicis brevis, flexor pollicis brevis, opponens pollicis, and adductor pollicis are what category of hand mx

thenar mx

Thenar mx that adducts thumb

adductor pollicis brevis

Thenar mx that flexes thumb

flexor pllicis brevis

Thenar mx that opposes little finger with thumb

opponens pollicis

Thenar mx that adducts thumb

adductor pollicis brevis

Then ar mx that wraps around 5th metacarpal

opponens digiti minimi

Thenar mx that wraps around 1st metacarpal

opponens pollicis

Two heads of adductor pollicis

transverse head, oblique head

Thenar mx are innervated by what n

recurrent branch of median nerve

Thenar mx innervation exception, adductor pollicis is innervated by

deep branch of ulnar n

Damage to deep branch of ulnar nerve causes what problem

inability to adduct thumb (pick things up)

Small mx in hand that flex MCP and extend Ips (table topper mx)

4 lumbricales (numbered 1-4)

Lubricles originate from what tendon

Tendon of the flexor digitorum profundus

Origin of dorsal interossei

interosseous joints of metacarpals

Action of dorsal interossei

abduct fingers

Action of palmer interossei

adduction fingers

Insertion of dorsal interossei

side of finger for abduction

Insertion of palmar interossei

side of finger for adduction

lateral 2 lumbricles are innervated by

median nerve

medial 2 lumbricles are innervated by

deep branch of ulnar n

All interossei innervated by

deep branch of ulnar n

Superficial br ulnar artery and superficial palmar br radial artery form what

superficial palmar arch

Three artery structures in hand

superficial palmar arch, common palmar digitial arteries, proper palmar digitial arteries

Connection between tendons and blood vessels in flexor digitorum superficialis and flexor digitorum profundus

vinculae

Artery structure in hand formed by radial artery and deep branch of ulnar artery

deep palmar arch

Artery that goes through the anatomical snuffbox

radial artery

Palmar metacarpal arteries, princeps pollicis artery, and radialis indicis artery are branches of what

branches of deep palmar arch

Artery that gives pulse to thumb

princeps pollicis artery

Artery that runs up side of index finger

radialis indicis artery

Structures on fingers that create tunnels for long flexor tendons

fibrous sheaths

Unit I Lec 15-16 Flashcards

(91 cards)