Where Are the Metacarpals Located in the Human Body

Subject : Biology

Question:

Where in the body does the metacarpus or metacarpals can be found?

a. Knee

b. Foot

c. Hand

d. Shoulder

Expert Verified Solution:

The correct answer is c. Hand.

Detailed Explanation:

The term “metacarpus” refers to the group of five bones known as the metacarpals, which are located in the middle section of the hand. These bones form the skeleton of the palm and play a crucial role in the structure and function of the hand.

Anatomy of the Metacarpals:

Position: The metacarpals are situated between the wrist bones (carpals) and the finger bones (phalanges). They connect the wrist to the fingers.

Structure: Each metacarpal bone is long and cylindrical, and they are numbered from one to five, starting with the thumb side. They consist of a base (proximal end), a shaft (middle section), and a head (distal end).

Function: The metacarpals provide support and allow for the range of motion in the fingers. They are essential for gripping and manipulating objects, as they contribute to the hand’s flexibility and strength.

Articulation: The metacarpals articulate with the wrist bones at their proximal ends and with the phalanges at their distal ends, forming the metacarpophalangeal joints (MCP joints), which are crucial for finger movement.

The metacarpals are integral to the hand’s anatomy, allowing for both fine and gross motor skills. They are not found in the knee, foot, or shoulder, making option c. Hand the correct choice.