Question

The carpus is defined as:

A)
The collection of bones in the hand

B)
The wrist bones, collectively

C)
The bony eminerice at the distal

D)
Pertaining to the palm of the hand

Answer 1

The carpus, which identifies with option B) The wrist bones, collectively, comprises eight small carpal bones organized in proximal and distal rows. These carpal bones are fundamental in wrist movement, separate from the metacarpal bones forming the palm and the phalanges forming the digits. Option b.

Step-by-step explanation:

The carpus, or the wrist bones, is the correct definition when referring to option B) The wrist bones, collectively. The carpus consists of eight small carpal bones that form the base of the hand and are crucial in providing the structure needed for wrist movement and manual manipulation.

The carpal bones are grouped into two rows: a proximal row (scaphoid, lunate, triquetrum, and pisiform) and a distal row (trapezium, trapezoid, capitate, and hamate). This arrangement allows for the complex motions of the wrist and hand.

While the carpal bones form the wrist, the metacarpal bones form the palm of the hand, with each bone articulating with the distal carpal bones to form the carpometacarpal joints. The thumb and fingers consist of phalanx bones, with the thumb having two (proximal and distal) and the fingers each having three (proximal, middle, and distal).

It is important to distinguish the carpus from other structures of the hand, such as the metacarpals and phalanges, as these form the palm and digits, respectively, and not the wrist itself.

So Option B.