Which of the following anatomical terms refers to the thumb? pollex tarsal hallux volar carpal

Polex

Explanation:

Polex

POLLEX

Explanation:

Thumb, also called pollex, short, thick first digit of the human hand and of the lower-primate hand and foot. It differs from other digits in having only two phalanges (tubular bones of the fingers and toes). The thumb also differs in having much freedom of movement and being opposable to tips of other digits

answer(b) keep oxygenated and deoxygenated blood separate;