Extensor Forearm X beauty Flashcards

1
Q

Muscles in the back of forearm are associated with

A

1.Extension of fingers
2.Movement at wrist
3.Supination

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2
Q

The 7 superficial muscles of extensor compartment of forearm are

A

Brachioradialis
ECRL
ECRB
ED
EDM
ECU
Anconeus

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3
Q

2 extensor muscles of forearm which do not extend as tendons to hand

A

BRACHIORADIALIS
ANCONEUS

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4
Q

Due to it s anteriolateral location wrt elbow joint the brachioradialis is an

A

Accesory flexor though it lies in the posterior compartment

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5
Q

Position of forearm during which brachioradialis acts most efficiently

A

Midpronated position

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6
Q

Radial nerver emerges in extensor forearm just deep to which muscle

A

Brachioradialis

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7
Q

Distally brachioradialis lies over the

A

1)Superficial branch of radial nerve
2)Radial artery

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8
Q

Extensor carpi radialis longus lies deep to brachioradialis

A

It abducts and extends the wrist

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9
Q

Extensor carpi radialis longus and brachioradialis is innervated by

A

Radial nerve before it divides into superficial and deep branches

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10
Q

ECRL is inserted in

A

Dorsal side of base of metacarpal 2

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11
Q

ECRB which lies deep to ECRL is inserted in

A

Dorsal side of base of 2 and 3rd metacarpals

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12
Q

ECRB is innervated by

A

Deep branch of radial nerve before it passes between the two heads of the supinator muscle

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13
Q

Posterior interossesous nerve is the continuation of

A

Deep branch of radial nerve after it emerges from supinator muscle

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14
Q

EDM is an additional extensor and is innervated by the

A

Posterior interossesous nerve

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15
Q

The only superficial extensor that adducts the wrist joint is

A

Extensor carpi ulnaris

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16
Q

ECU is alse innervated by the

A

Posterior interossesous nerve

17
Q

Action of Anconeus

A

Abducts the ulna during pronation in order to maintain the center of palm

18
Q

Insertion of brachioradialis and Anconeus

A

1) lateral side of distal end of radius
2)posteriolateral surface of the olecranon

19
Q

Name the 5 deep extensors of forearm

A

1)Supinator
2)Abductor pollicis longus
3)Extensor pollicis brevis
4)Extensor policies longus
5)Extensor indices

20
Q

The 3 arteries that predominantly supply the posterior compartment of forearm

A

1)Branches of Radial artery
2)Posterior Interossesous Artery
3) Anterior Interossesous Artery

21
Q

Common interossesous artery is a branch of

A

ULNAR artery

22
Q

Recurrent interossesous artery is a branch of

A

Posterior interossesous Artery

23
Q

Posterior interossesous Artery passes between which 2 muscles

A

1) Supinator
2) Abductor pollicis longus

24
Q

Superficial and deep extensor muscles are supplied by

A

Posterior and Anterior Interossesous Arteries respectively

25
Q

What is the fate of posterior interossesous artery at the hand

A

After receiving the terminal branch of anterior interossesous artery it forms the DORSAL CARAPL ARCH