Why does a torn cartilage heal more slowly than a broken bone?
What will be an ideal response?
Bones have an extensive blood supply, both to the external and the internal surfaces, while cartilages rely on receiving nutrients by diffusion. As the blood supply to a damaged bone increases, the rate at which it heals can also increase; this will not occur in a cartilage.
You might also like to view...
The uterine cycle begins with the onset of ________.
Fill in the blank(s) with the appropriate word(s).
The chief cells of the gastric mucosa secrete
a. bicarbonate ions. b. HCl. c. pepsinogen. d. sucrase. e. trypsin.
The area of the motor cortex that is devoted to a particular region of the body is proportional to the
A) size of the body area. B) distance of the body area from the brain. C) number of motor units in that region. D) number of sensory receptors in the area of the body. E) size of the nerves that serve the area of the body.
When discussing levers in the muscular system, which term does the insertion of the muscle describe?
A. Resistance B. Fulcrum C. Lever D. Effort