Every living cell in the body requires oxygen,various ions,and nutrients.However,the solid nature of bone prevents these materials from reaching bone cells by diffusion alone.Which statement best describes how bone cells receive these necessary items?
A)Blood capillaries penetrate into the calcified matrix of bone.
B)Bone cells are only found on the periphery of bone and thus are in direct contact with blood vessels.
C)Bone cells are only found lining the central canal where they are in direct contact with blood vessels.
D)Bone cells connect to each other and ultimately with blood vessels (in the central canal)through passageways called canaliculi.
E)Bone cells receive materials through lymph vessels that penetrate bone matrix.

Question

Quizplus · Accepted Answer

Bone cells, also known as osteocytes, are located within tiny spaces called lacunae that are embedded within the calcified matrix of bone. These cells are connected to each other and ultimately to the blood vessels in the central canal (also known as the Haversian canal) through small passageways called canaliculi. This allows for the diffusion of necessary materials such as oxygen, ions, and nutrients to reach the osteocytes. Therefore, choice D best describes how bone cells receive these necessary items.

Every Living Cell in the Body Requires Oxygen,various Ions,and Nutrients