Question

"Osteonecrosis is a disease caused by reduced blood flow to bones in the joints. In people with healthy bones, new bone is always replacing old bone. In osteonecrosis, the lack of blood causes the bone to break down faster than the body can make enough new bone."

Based on this passage and your knowledge of bone, what is one way that reduced blood flow could cause osteonecrosis?

Inadequate opening within the perforating canals
Inadequate opening within the Haversian canal
Inadequate nutrients delivered to the osteoclasts
Inadequate nutrients delivered to the osteoblasts

Answer 1

Back

Answer 2

Can you help me with this one please?

Answer 3

I will try

Answer 4

"Osteonecrosis is a disease caused by reduced blood flow to bones in the joints. In people with healthy bones, new bone is always replacing old bone. In osteonecrosis, the lack of blood causes the bone to break down faster than the body can make enough new bone."

Based on this passage and your knowledge of bone, what is one way that reduced blood flow could cause osteonecrosis?

Inadequate opening within the perforating canals
Inadequate opening within the Haversian canal
Inadequate nutrients delivered to the osteoclasts
Inadequate nutrients delivered to the osteoblasts

Answer 5

D.Inadequate nutrients delivered to the osteoblasts

Answer 6

because the blood flow has been stemmed it minimises the amount of oxidised blood and nutrients thereof that are transported to the body's extremities.

Answer 7

Thank you so much!

Answer 8

Your welcome!

Answer 9

You were right!

Answer 10

Good

Answer 11

Blood circulation is the main mode of nutrient delivery for all cell types -- bone cells included. If we were to reduce blood circulation, then consequently, nutrient delivery worsens. Following inadequate nutrition in osteo-structures, osteonecrosis ensues. So as @JoeDeWise stated earlier, D is your best answer @emilyfredericks.

(Note: "osteon" translated from Greek roughly means bone, and "necro" translated from Greek roughly means death. Hence, "osteonecrosis" roughly translates to bone-death.)