Which of the following is CORRECTLY matched with its function?
A. Marker molecules - are primarily steroids
B. Receptor proteins - attach to ligand molecules
C. Nongated ion channels - are always closed
D. Channel proteins - are part of an intercellular communication system
E. Peripheral proteins - penetrate the lipid bilayer from one surface to the other
Answer: B
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Hormones are chemicals which circulate in the bloodstream
Indicate whether the statement is true or false.
The two divisions of the autonomic nervous system
A. use preganglionic and postganglionic neurons to innervate skeletal muscle.
B. contain autonomic ganglia to house ganglionic neurons.
C. are voluntary.
D. are composed of PNS structures only.
E. function only during sleep.
Beth Wood tells her nursing students that it is important to monitor patients' blood pressure when they are receiving verapamil (a calcium channel blocker). Why?
What will be an ideal response?
Select all the brain areas containing autonomic nuclei involved in controlling respiration (breathing).A) PonsB) Medulla oblongataC) MidbrainD) Cerebellum
What will be an ideal response?