In the palm of the hand

Hand

A hand is a prehensile, multi-fingered extremity located at the end of an arm or forelimb of primates such as humans, chimpanzees, monkeys, and lemurs...

 the median nerve

Median nerve

The median nerve is a nerve in humans and other animals. It is in the upper limb. It is one of the five main nerves originating from the brachial plexus....

 is covered by the skin and the palmar aponeurosis

Palmar aponeurosis

The palmar aponeurosis invests the muscles of the palm, and consists of central, lateral, and medial portions.-Central portion:The central portion occupies the middle of the palm, is triangular in shape, and of great strength and thickness....

, and rests on the tendons of the Flexor muscles. Immediately after emerging from under the transverse carpal ligament the median nerve

Median nerve

The median nerve is a nerve in humans and other animals. It is in the upper limb. It is one of the five main nerves originating from the brachial plexus....

 becomes enlarged and flattened and splits into a smaller, lateral, and a larger, medial portion.

The medial portion of the nerve divides into two Common palmar digital nerves (common volar digital nerves).

• The first of these gives a twig to the second Lumbricalis
  Lumbricalis
  -Species Latin names:* Amphisbaena lumbricalis, Vanzolini, 1996, a worm lizard species in the genus Amphisbaena* Asteriacites lumbricalis, a five-rayed fossil found in rocks : see Asteriacites...
  
   and runs toward the cleft between the index
  Index finger
  The index finger, , is the first finger and the second digit of a human hand. It is located between the first and third digits, between the thumb and the middle finger...
  
   and middle finger
  Middle finger
  The middle finger or long finger is the third digit of the human hand, located between the index finger and the ring finger. It is usually the longest finger...
  
  s, where it divides into two proper digital nerves for the adjoining sides of these digits;

• the second runs toward the cleft between the middle
  Middle finger
  The middle finger or long finger is the third digit of the human hand, located between the index finger and the ring finger. It is usually the longest finger...
  
   and ring finger
  Ring finger
  The ring finger is the fourth digit of the human hand, and the second most ulnar finger, located between the middle finger and the little finger. It is also called digitus medicinalis, the fourth finger, digitus annularis, digitus quartus, or digitus IV in anatomy.- Etymology :According to László A...
  
  s, and splits into two proper digital nerves for the adjoining sides of these digits; it communicates with a branch from the ulnar nerve
  Ulnar nerve
  In human anatomy, the ulnar nerve is a nerve which runs near the ulna bone. The ulnar collateral ligament of elbow joint is in relation with the ulnar nerve. The nerve is the largest unprotected nerve in the human body , so injury is common...
  
  and sometimes sends a twig to the third Lumbricalis.