__________ are located in the walls of the stomach and small intestine.
A) Skeletal muscle cells
B) Cardiac muscle cells
C) Smooth muscle cells
D) Both skeletal and cardiac muscle cells
E) Both cardiac and smooth muscle cells
Ans: C) Smooth muscle cells
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Myasthenia gravis is
A. a form of cancer. B. an autoimmune disorder. C. the result of injury. D. a bacterial infection.
The ________________________________________ is the tube-like structure that connects the kidney to the bladder
Fill in the blank(s) with correct word
If a muscle cell expressed muscarinic ACh channels, which are only permeable to Na+ instead of nicotinic ACh channels, which are permeable to both Na+ and K+, which portion of a muscle cell would be inhibited?
A. Relaxation B. Muscle cell depolarization C. Cross-bridge cycling D. Neurotransmitter release from the motor neuron E. None of the answer choices are correct
An excess of hydrogen ions in the body fluids can have fatal results because this can
A) break chemical bonds. B) change the shape of proteins, rendering them nonfunctional. C) disrupt tissue functions. D) change body fluid pH. E) All of the answers are correct.