NEETZoologyLocomotion and Movement
Which of the following represents the correct proximal to distal sequence of bones in the human forelimb?
Options
- AHumerus-radius-carpals-metacarpals
- BPhalanges-metacarpals-carpals-radius
- CHumerus-radius-tarsals-metacarpals
- DHumerus-carpals-radius-metacarpals
Correct answer
A. Humerus-radius-carpals-metacarpals
Step-by-step solution
The bones of the human forelimb from proximal (closest to the point of attachment) to distal (furthest from the point of attachment) are arranged as follows: Humerus (upper arm) Radius and Ulna (forearm) Carpals (wrist bones) Metacarpals (palm bones) Phalanges (digits). Thus, the correct proximal to distal sequence is Humerus-radius-carpals-metacarpals. The sequence Phalanges-metacarpals-carpals-radius is in distal to proximal order. Tarsals are bones of the hindlimb, not the forelimb. Answer: Humerus-radius-carpal