Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed. What process does this interfere with and what would be the consequence?
What will be an ideal response?
Demyelination interferes with saltatory conduction, which would result in a slowing down of nerve impulse propagation.
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Osteoblasts are bone-forming cells; osteoclasts are bone-dissolving cells
Indicate whether this statement is true or false.
Afferent fibers terminating in the hypothalamus provide input from the
A. limbic system. B. visceral organs. C. the prefrontal cortex of the cerebrum. D. taste receptors of the tongue. E. All of the choices are correct.
How can x-rays be used to diagnose endocrine disorders?
A. X-rays can determine inappropriate levels of chemicals in the blood. B. X-rays can determine changes in bone growth. C. X-rays can detect changes in soft tissue. D. X-rays produce scans in slices and can show whether a tumor is present.
Match the following concerning concentration differences across the plasma membrane.A. Concentration of K+B. Concentration of Na+ and Cl?C. Negatively charged proteinsD. Sodium-potassium pumpE. Plasma membrane is more permeable to this ion because of leak ion channelsHigher concentration inside cell
Fill in the blank(s) with the appropriate word(s).