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Anatomy E2 > Starred Lecture Items L12 > Flashcards

Starred Lecture Items L12 Flashcards

(94 cards)

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1
Q

what side is listers tubercle on

A

dorsal

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2
Q

what uses listers tubercle to change directions

A

EPL

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3
Q

what carpal is above scaphoid

A

trapezium (bc easy to fracture)

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4
Q

what carpal is above lunate

A

capitate (cap on the moon)

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5
Q

column of carpals most ulnar

A

triquetrum, pisiform, hamate
rum pisi ham

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6
Q

three palmar arches

A

distal transverse
proximal transverse
longitudinal

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7
Q

wrist creases and what do they match up with

A

proximal, middle, distal
match up with carpals

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8
Q

what joint does thumb abduction

A

CMC (carpal metacarpal)

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9
Q

extrinsic muscles of the hand originate….

A

originate proximal to the wrist
generate greater force

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10
Q

intrinsic muscles of the hand are found where

A

contained entirely withIN the hand
precise control

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11
Q

superficial layer of the flexors

A

flexor carpi radialis (FCR)
flexor carpi ulnaris (FCU)
palmaris longus

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12
Q

intermediate layer of flexors

A

flexor digitorum superficialis (FDS)

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13
Q

deep layer of flexors

A

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

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14
Q

which flexor muscle does not go to the wrist/hand

A

pronator teres

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15
Q

which nerve enervates flexor carpi radialis

A

median C6 and C7*

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16
Q

which nerve enervates flexor carpi ulnaris

A

ulnar nerve (C7 and C8*)

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17
Q

which is not true about FCU/FCR (slide 19)

A

they are both enervated by the median nerve

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18
Q

FCU/FCR dual actions

A

both flex the wrists
each try to deviate

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19
Q

FCU/FCR dual attachments

A

medial epicondyle of humerus (common flexor tendon)
bases of 2nd and 3rd (FCR) and 5th (FCU) metacarpals

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20
Q

which splits FDS or FDP

A

FDS: s=splits

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21
Q

does FDS flex DIP joint

A

no

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22
Q

what joints does FDS flex

A

PIP MCP

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23
Q

what joints does FDP flex

A

PIP MCP DIP

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24
Q

what is the only muscle that flexes DIP

A

FDP

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25
what nerve enervates FDP
2-3 digits: median (AIN) (C8* and T1) 4-5: ulnar (C8 and T1*)
26
what goes through the split of FDS
FDP: "profundus penetrates"
27
where does FDP insert after emerging through FDS & what does it do there
on distal phalanx to flex DIP joint
28
flexor tendon zone TI
29
flexor tendon zone TII
30
flexor tendon zone TIII
31
flexor tendon zone TIV
32
flexor tendon zone TV
33
which flexor tendon zone is "no mans zone" and why
zone II because it has the FDS/FDP split so its intricate to fix injuries here
34
how many annular pulleys on each finger
5
35
how many cruciate pulleys on each finger
4
36
annular meaning cruciate meaning
annular: circular (horizontal) cruciate: cross (diagonal)
37
which pulleys are most important and where are they found?
A4 (middle of middle phalanx) and A2 (middle of proximal phalanx) use them while rock climbing
38
what keeps FDS in place
vincula brevis and vinculum longus
39
trigger finger cause and what does it lead to
covering of the tendon is closing in and not allowing it to glide inflammation of A1 pulley leads to locking finger in flexed position (stuck not torn)
40
which pulley causes trigger finger
A1
41
flexor pollicis longus actions
42
flexor pollicis longus attachments
43
pronator quadratus enervated by what nerve
median nerve (AIN) (C8* and T1)
44
flexor pollicis longus nerve enervation
Median nerve ain c8 t1
45
what becomes the floor of the snuffbox
radial artery
46
what are the two walls of the snuffbox
47
mallet finger deformity
distal phalynx hangs down (cant straighten end of finger out) ruptured long extensor tendon
48
boxer fracture what is effected
fracture in the 5th metacarpal neck (pinkie)
49
where is the neck of the metacarpal
right above the head
50
gamekeepers thumb/skiers thumb what occurs
UCL on the ulnar side of the thumb is torn
51
thenar muscles
flexor pollicis brevis abductor pollicis brevis opponens pollicis
52
where is the thenar region/ thenar eminence
thumb area/ raised area
53
what nerve enervates flexor pollicis brevis
superficial head: recurrent branch of median (C8* and T1) deep head: ulnar (C8 and T1*)
54
what muscles are enervated by two nerves
FDP FPB lumbricals
55
flexor pollicis brevis FPB actions
56
flexor pollicis brevis FPB attachments
57
abductor pollicis brevis attachments
58
abductor pollicis brevis actions
59
abductor pollicis brevis nerve enervation
median nerve (C8* T1)
60
opponens pollicis enervation
Recurrent median nerve (C8* and T1)
61
opponens pollicis attachments
62
opponens pollicis actions
opposes thumb (draws 1st metacarpal medially to center of palm & rotates it medially)
63
hypothenar region muscles
flexor digiti minimi abductor digiti minimi opponens digiti minimi
64
flexor digiti minimi actions
65
flexor digiti minimi attachments
66
flexor digiti minimi enervation
ulnar nerve (C8 and T1)
67
abductor digiti minimi attachments
68
which two muscles attach to the pisiform
FCU AbductorDM
69
abductor digiti minimi actions
70
opponens digiti minimi attachments
71
opponens digiti minimi actions
72
opponens digiti minimi enervation
73
adductor pollicis enervation
ulnar nerve (C8 and T1*) impt bc opposite side
74
adductor pollicis attachments
75
adductor pollicis actions
76
if ulnar nerve is cut what is effected
FCU Half profundus digiti minimi Adductor pollicis ??????
77
short muscles (3)
lumbricals palmar interossei dorsal interossei
78
MCP flexion with PIP/DIP extension meaning
sock puppet hand
79
lumbricals actions
80
lumbricals attachments
??????????
81
lumbricals enervation
82
what muscle in the hand attaches to tendons
lumbricals
83
unipennate vs bipennate and what lumbricals are each
one vs two muscle bellies 1 and 2 are unipennate 3 and 4 are bipennate
84
palmar interossei acronym
PAD finger adduction towards the middle finger
85
which muscles go to the extensor expansion
dorsal interossei, palmar interossei, lumbricals
86
dorsal interossei acronym
DAB finger abduction
87
what three muscles do sock puppet motion
????? not dorsal interossei
88
are dorsal interossei and palmar interossei bipennate or unipenate
dorsal= bi palmar= uni ???
89
which muscles go through the carpal tunnel
FDP FDS
90
contents of carpal tunnel
FDP FDS FCR FPL median nerve
91
does the ulnar nerve/artery go through the carpal tunnel
no
92
what form the walls of the guyons canal
pisiform and hook of hamate
93
dupuytrens contracture and what is most affected
abnormal thickening of palmar aponeurosis contracture of ring and pinkie fingers (very hard to move)
94
contracture vs trigger finger
trigger finger is easier to straighten, contracture is not able to be straightened (stuck like that)

Anatomy E2 (10 decks)

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