If a person is injected with a toxin that blocks acetylcholine receptors, which of the following will occur?
A. The sarcolemma will be constantly stimulated and muscles will continually contract.
B. Spastic paralysis will result.
C. The toxin will have no effect on muscle action.
D. Stimulation of the sarcolemma will not be possible and muscles will be paralyzed.
E. The person will develop myasthenia gravis.
D. Stimulation of the sarcolemma will not be possible and muscles will be paralyzed.
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Which tissue would you expect to find in an area of the body that experiences friction and wear and tear?
A. Simple cuboidal epithelium B. Simple columnar epithelium C. Stratified squamous epithelium D. Simple squamous epithelium E. Pseudostratified ciliated columnar epithelium
Waste ________________________________________ gas has potential risks for the kidneys, liver, and fertility
Fill in the blank(s) with correct word
Compared to membrane carriers, how much faster are channels at allowing particles/ions to pass through the plasma membrane?
a. 2x b. 10x c. 25x d. 100x e. 1,000x
The skin and its derivatives (nails, glands, and hairs) form the ________
A) skeletal system B) integumentary system C) endocrine system D) immune system E) lymphatic system