Answer the following statements true (T) or false (F)
1. Schwann cells are the primary type of glial cell associated with the central nervous system.
2. The gaps between Schwann cells are calledsynapses.
3. An influx of Na+ ions depolarizes the membrane of an axon.
4. The absolute refractory period is important in unidirectional propagation of action potentials.
5. If the graded potential increases in amplitude, then the frequency of the action potentials fired also increases.
1. False, peripheral nervous system
2. False, nodes of Ranvier
3. True
4. True
5. True
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The smooth muscle in arteriole walls can be stimulated either to contract or to relax, thereby either decreasing or increasing the amount of blood flowing through arteriolar beds.
Answer the following statement true (T) or false (F)
Oxidation forms chemical bonds
Indicate whether the statement is true or false
The passage of water soluble substances through the plasma membrane is made possible by ____ in the membrane Cholesterol Glycolipids Phospholipids Proteins
Fill in the blank(s) with the appropriate word(s).
Vasomotion can raise or lower blood pressure throughout the body.
Answer the following statement true (T) or false (F)