Upper Limb 3 - Station 1 Flashcards

(33 cards)

1
Q

3 layers of the anterior forearm muscles

A

superficial, middle/intermediate and deep

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2
Q

superficial anterior forearm muscles

A

flexor carpi radialis, flexor carpi ulnaris, palmaris longus and pronator teres

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3
Q

common origin of all superficial anterior forearm muscles

A

medial epicondyle

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4
Q

action of pronator teres

A

pronation and flexion of wrist

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5
Q

innervation of pronator teres

A

median nerve

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6
Q

action of flexor carpi ulnaris

A

wrist flexion and adduction

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7
Q

innervation of flexor carpi ulnaris

A

ulnar

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8
Q

action of flexor carpi radialis

A

wrist flexion and abduction

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9
Q

innervation of flexor carpi radialis

A

median

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10
Q

action of palmaris longus

A

flexes wrist and tenses palmar aponeurosis

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11
Q

innervation of palmaris longus

A

median

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12
Q

which muscles tendon can be seen protuding in the wrist and is not present in 10% of the population

A

palmaris longus

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13
Q

order that the superficial anterior forearm muscles go in from medial to lateral

A

flexor carpi ulnaris –> palmaris longus –> flexor carpi radialis –> pronator teres

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14
Q

is the brachioradialis anterior or posterior forearm compartment

A

posterior

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15
Q

action of brachioradialis

A

flexion of the elbow strongest in the midprone position

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16
Q

innervation of brachioradialis

17
Q

how is the brachioradialis an exception

A

because breaks the generalisation that the radial nerve supplies only extensors and that all flexors are in the anterior compartment

18
Q

intermediate muscles of the anterior forearm

A

flexor digitorum superficialis (FDS)

19
Q

how many tendons does the flexor digitorum superficialis have and where do they attach

A

4 attaching to the middle phalanges of the medial 4 fingers

20
Q

innervation of the flexor digitorum superficialis

21
Q

deep muscles of the anterior forearm

A

flexor digitorum profundus, flexor pollicis longus and pronator quadratus

22
Q

all muscles of the anterior forearm (from out to in)

A
flexor carpi ulnaris
palmaris longus
flexor carpi radialis
pronator teres
flexor digitorum superficialis
flexor digitorum profundus
flexor pollicis longus
pronator quadratus
23
Q

action of the flexor digitorum profundus

A

flexes wrist and DIP joints of medial four fingers

24
Q

action of the flexor digitorum superficialis

A

flex wrist and PIP joints of medial four fingers

25
which flexor digitorum is responsible for flexion at the distal interphalangeal joints
flexor digitorum profundus
26
innervation of flexor digitorum profundus
medial half --> ulnar | lateral half --> median
27
action of flexor pollicis longus
flexion of wrist and thumb IP joint
28
innervation of flexor pollicis longus
median nerve (anterior interosseus nerve)
29
action of pronator quadratus
pronate forearm
30
innervation of pronator quadratus
median nerve (anterior interosseus nerve)
31
which forearm muscles are innervated by the anterior interosseus branch of the median nerve
pronator quadratus, flexor pollicis longus and lateral part of the flexor digitorum profundus
32
only two anterior forearm muscles not to be innervated by the median nerve
flexor carpi ulnaris and medial part of flexor digitorum profundus
33
which forearm muscles has split innervation
flexor digitorum profundus