GROSS ANATOMY

GROSS ANATOMY

BRACHIAL PLEXUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what are the LOAF muscles of the hand supplied by the median nerve
A
lumbricals, opponens pollicis, adductor brevis, flexor digitorum
B
lumbricals, opponens, adductor brevis, flexor digitorum superficialis
C
lumbricals, opponens pollicis, abductor pollicis, flexor pollicis brevis
D
lumbricals, opponens brevis, adbuctor pollicis, flexor digitorum
Explanation: 

Detailed explanation-1: -After emerging from the carpal tunnel, the median nerve transverses below the palmar aponeurosis and immediately gives off the (recurrent) thenar motor branch which supplies the thenar muscles of the hand: flexor pollicis brevis, abductor pollicis brevis, and opponens pollicis.

Detailed explanation-2: -All the intrinsic muscles of the hand are innervated by the ulnar nerve, except four muscles which are supplied by the median nerve and are easily recalled with the mnemonic: FOAL or LOAF.

Detailed explanation-3: -Flexor Pollicis Brevis(FPB) is present on the radial border of the palm. FPB is one of the muscle of the thenar eminence of the hand. It also falls under the intrinsic muscle of the hand. Flexor Pollicis Brevis is the small, narrow muscle consisting of the outer and inner portions.

Detailed explanation-4: -lateral two lumbricals. opponens pollicis. abductor pollicis brevis. flexor pollicis brevis.

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