To be heathlyer and have more variety
I believe the answer to your question will be atrioventricular but don't cross out pulmonary it could possibly be the answer.
Answer:
Osteons are cylindrical structures that contain a mineral matrix and living osteocytes connected by canaliculi, which transport blood. They are aligned parallel to the long axis of the bone. Each osteon consists of lamellae, which are layers of the compact matrix that surround a central canal called the Haversian canal.
I dont know just need pts
I believe the correct answer is true........