Describe a thermoneutral zone
What will be an ideal response?
Skin vasomotor activity is highly effective in controlling heat loss in environmental temperatures between the upper 60s and mid-80s. This range, within which core temperature can be kept constant by vasomotor responses without calling supplementary heat-production mechanisms (shivering) or heat-loss mechanisms (sweating) into play, is called the thermoneutral zone.
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Drug X is a new drug to treat Alzheimer's Disease. This drug is able to cross the blood-brain barrier and circulate in the CSF. The drug is slightly acidic and at the recommended dose it decreases the CSF pH from 7.4 to 7.3. Will Drug X have any effect on respiration?
A. It will cause a decrease in respiratory rate. B. It will have no effect on respiratory rate, but will cause the patient to take shallower breaths. C. It will cause an increase in respiratory rate. D. It will have no effect on respiratory rate, but will cause an increase in depth of breathing. E. It will not impact respiratory function.
Lazy eye is also known as ________.
A. hyperopia B. myopia C. presbyopia D. amblyopia
Which type of cell is the most effective to attack multicellular parasites such as tapeworms?
A. Basophils B. Eosinophils C. Macrophages D. Neutrophils
The number of mitochondria in skeletal muscle cells is ________ adipose (fat) cells.
A) equal to B) greater than C) less than