Select the incorrect statement about the parasympathetic nervous system
a. It inhibits all cardiac muscle and smooth muscle.
b. Neurotransmitter from all its postganglionic fibers bind to muscarinic receptors.
c. Neurotransmitter from all its preganglionic fibers bind to nicotinic receptors.
d. Part of it originates in the brain
e. Part of it originates in the most inferior region of the spinal cord.
A
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Which of the following correctly describes the structural organization of the cell membrane?
A. Rigid layers of protein molecules in which carbohydrate molecules are suspended B. A bilayer of phospholipid molecules in which protein molecules are embedded and can move C. A solid, rigid layer of phospholipid with loosely bound protein molecules D. Three layers; lipid on the inside, protein in the middle, and carbohydrates (and polysaccharides) on the outside
The nasal cavity connects to the external environment at the ________.
Fill in the blank(s) with the appropriate word(s).
A laryngoscope is used to view the throat and trachea
Indicate whether the statement is true or false
Excretion
a. is the removal of substances that were filtered at the glomerulus or secreted but not reabsorbed. b. is the process by which a substance moves from the peritubular capillary blood to the tubular fluid. c. conserves substances that are important to the body. d. occurs by active transport of substances into the urinary bladder. e. is controlled by sympathetic activity.