Your fingertips are highly sensitive, yet geographically small areas of your body. You expect the area of the somatosensory cortex that receives afferent stimuli from them to be quite small as well.
Answer the following statement true (T) or false (F)
False
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Before an olfactory receptor can detect an odorant, it has to
A) contact a basal cell. B) bind to receptors on olfactory dendrites. C) open ion channels. D) respond to applied pressure. E) be transported to the olfactory bulbs.
The H zone of the sarcomere consists of myosin but does not contain actin
Indicate whether the statement is true or false
You pass by the office of a practitioner of alternative medicine. A poster hanging in the window offers therapies that result in "activation of the brainstem and sacral portions of the spinal cord." The poster is promoting methods that will result in enhanced activation of the parasympathetic nervous system.
Answer the following statement true (T) or false (F)
The affinity of hemoglobin for oxygen increases with:
A) increased hydrogen ion concentration. B) increased body temperature. C) increased BPG (2, 3-bisphosphoglycerate). D) increased partial pressure of carbon dioxide.