Question 2

(Multiple Choice)

Which of the following pathways correctly follows the flow of nutrients needed by the osteocytes in compact bone?


A) Osteocytes \rightarrow lacuna \rightarrow blood vessels in central canals \rightarrow diffusion through the canaliculi \rightarrow blood vessels in periosteum & endosteum \rightarrow general circulation
B) Osteocytes \rightarrow lacuna \rightarrow diffusion through the canaliculi \rightarrow blood vessels in central canals \rightarrow blood vessels in periosteum & endosteum \rightarrow general circulation
C) Blood vessels in central canals \rightarrow blood vessels in periosteum & endosteum \rightarrow diffusion through the canaliculi \rightarrow lucane \rightarrow osteocyte
D) Blood vessels in periosteum & endosteum \rightarrow blood vessels in central canals \rightarrow diffusion through the canaliculi \rightarrow lacuna \rightarrow osteocyte
E) Blood vessels in periosteum \rightarrow direct diffusion through the hard, ossified matrix \rightarrow osteocyte

Answer

D