QuestionSBA
QuestionChoice
The anterior interosseous nerve, a branch of the median nerve, does not supply the thenar muscles. Instead, it innervates deep muscles of the forearm, including the flexor pollicis longus, flexor digitorum profundus (lateral half), and pronator quadratus. The thenar muscles are primarily supplied by the recurrent branch of the median nerve.
10041210
e
Anterior interosseous nerve
QuestionChoice
The palmar digital cutaneous branches of the median nerve innervate the lateral three and a half fingers on their palmar surface. This branch of the median nerve only has sensory function.
10041208
c
Palmar digital cutaneous branches of the median nerve
QuestionChoice
The arrow is pointing to the abductor pollicis brevis, one of the thenar muscles. These muscles are supplied by the recurrent branch of the median nerve.
10041206
a
Recurrent branch of the median nerve
QuestionChoice
The deep branch of the ulnar nerve innervates the adductor pollicis, a muscle located in the palm that adducts the thumb. Adductor pollicis is not one of the thenar muscles. Unlike the thenar muscles, which are primarily responsible for thumb opposition and flexion, the adductor pollicis lies deeper and plays a crucial role in stabilising and positioning the thumb during grasping. Additionally, the deep branch supplies other intrinsic hand muscles, including the interossei and the third and fourth lumbricals, contributing to fine motor control and coordination of the fingers.
10041207
b
Deep branch of the ulnar nerve
QuestionChoice
The palmar digital branches of the median nerve innervate the lateral two lumbricals.
10041209
d
Palmar digital branches of the median nerve
Concept
Chapter
2693
5247
Muscles of the hand
Topic
258
Upper Limb Anatomy
20540
Picture
3139
144 - Muscles of the hand (abductor pollicis brevis).png
images/a4067kxo1727764573136.jpg
images/a4067kxo1727764573136_256.jpg
images/a4067kxo1727764573136_512.jpg
aSgGBgKnmVmYd/cpeHeHdXuX+o2Nr+g=
Topic
258
Upper Limb Anatomy
What is the nerve supply of the muscle labelled by the arrow?

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a