MMB [028] Movements & muscles of the Hand II Flashcards

1
Q

Nerves of palm of the hand ?

A

I. Median Nerve

II. Ulnar Nerve

III. Radial nerve

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2
Q

The Median Nerve’s passage in the hand ?

A

➢ passes deep to the flexor retinaculum through the carpal tunnel.

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3
Q

How does the median nerve terminate in the palm ?

A

➢It ends by dividing into medial & lateral divisions.

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4
Q

Motor supply : of the median nerve to the palm ?

A

Motor fibers to 5 muscles:
-3 muscles of thenar eminence ;
+ 1st & 2nd lumbricals

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5
Q

Sensory supply : of the median nerve to the palm ?

A

palmar surface of the lateral 3½ fingers and the dorsum of their terminal

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6
Q

Passage of the : Ulnar Nerve into the palm ?

A

It enters the palm Superficial to the flexor retinaculum

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7
Q

Most important nerve in the hand ??

A

II. Ulnar Nerve

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8
Q

How does the ulnar nerve terminate : in the palm ?

A

It ends by dividing into superficial & deep terminal branches

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9
Q

Motor supply of the : Ulnar nerve to the palm ?
Detailing the supply of each branch

A

Motor fibers to 15 muscles :

✓ 1 by superficial branch ; palmaris brevis

✓ 14 by deep branch.

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10
Q

Palm muscles supplied by the superficial branch ; of the Ulnar nerve ?

A

palmaris brevis

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11
Q

Palm muscles supplied by the deep branch ; of the Ulnar nerve ?

A

▪ Adductor pollicis.

▪ hypothenar eminence

▪ Medial 2 lumbricals (L3 & L4).

▪ All interosseii (palmar & dorsal).

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12
Q

Sensory supply : of the Ulnar nerve to the hand ?

A

-palmar surface of the medial 1½ fingers ;

-and the dorsum of their terminal & middle phalanges

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13
Q

Radial nerve supply to the hand ?

A
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14
Q
A
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15
Q

Arteries of palm of the hand ?

A

the superficial & deep palmar arches

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16
Q

How does the palmar arch arteries arise in the palm ?

A

These are the terminations of the ulnar & radial arteries which form 2 arches in the palm; the superficial & deep palmar arches respectively.

17
Q

Name the hidden artery and explain it’s course

A
18
Q

Name the hidden artery and explain it’s course

A