What is the significance of the lumbar vertebrae's body size? Their smaller size helps to support body flexibility.
Their larger size helps to support more body weight.
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Their larger size helps to maintain the position of the spinal cord.
O Their smaller size helps to support body movement.

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thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

the answer is a) cell division.

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