Question

43 a passageway connecting neighboring osteocytes in an osteon is a
a lacuna
b canaliculi
c lamella
d central canal

Explanation:

• Lacuna: It is a small cavity in bone or cartilage that houses an osteocyte. It is not a passageway connecting neighboring osteocytes.
• Canaliculi: These are tiny passageways (small channels) that connect neighboring osteocytes in an osteon. They allow for the exchange of nutrients, waste, and signaling molecules between osteocytes.
• Lamella: It is a thin layer, membrane, or plate of tissue, especially in bone. It is not a connecting passageway for osteocytes.
• Central canal: Also known as the Haversian canal, it contains blood vessels, nerves, and lymphatic vessels. It is not directly the structure that connects neighboring osteocytes.

Answer:

B. canaliculi