Question

skeletal system - osteon models on the midterm examosteon models will appear on the midterm practical exam. there are 2 different versions of osteon models. be able to locate the following structures on both versions. see reference figure below.osteons are the structural and functional units of compact bone, and they are composed of the following structures. find them on the models, then match them to their descriptions:1. canaliculi2. central canal3. lacunae4. lamellae5. osteocytes____ mature living bone cells__ allow osteocytes to hook up to the main blood supply__ small depressions that contain osteocytes__ contains large blood vessels, nerves, lymph vessels____ matrix of bone tissue that contains collagen and calcium; secreted by osteocytesstudy tip: take one or more pictures of the model to study outside of class

Explanation:

Match each osteon structure to its defining function/description using knowledge of compact bone anatomy:

1. Canaliculi are tiny channels that connect osteocytes to the central canal's blood supply.
2. The central canal houses large blood vessels, nerves, and lymph vessels.
3. Lacunae are small depressions holding osteocytes.
4. Lamellae are the collagen and calcium-rich bone matrix secreted by osteocytes.
5. Osteocytes are the mature, living bone cells found in lacunae.

Answer:

1. Canaliculi - allow osteocytes to hook up to the main blood supply
2. Central canal - contains large blood vessels, nerves, lymph vessels
3. Lacunae - small depressions that contain osteocytes
4. Lamellae - matrix of bone tissue that contains collagen and calcium; secreted by osteocytes
5. Osteocytes - mature living bone cells