An end plate potential is an event that involves a gain of
A. positive charge along the inside of the cell membrane, as potassium rapidly enters.
B. positive charge along the inside of the cell membrane, as sodium rapidly enters.
C. negative charge along the inside of the cell membrane, as potassium rapidly enters.
D.
negative charge along the inside of the cell membrane, as sodium rapidly enters.
B
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After nervous stimulation stops, what prevents ACh in the synaptic cleft from continuing to stimulate contraction?
A) calcium ions returning to the terminal cisternae B) the tropomyosin blocking the myosin once full contraction is achieved C) acetylcholinesterase destroying the ACh D) the action potential stops going down the overloaded T tubules
The fibula
A) helps to bear the weight of the body. B) articulates with the femur. C) forms an important part of the knee joint. D) is the medial bone of the leg. E) provides lateral stability to the ankle.
Diabetes mellitus results in
A) urine with high osmotic pressure. B) low blood sugar. C) protein in the urine. D) reduced urinary output.
The dominant inorganic cation in blood is
a. Na+ b. Cl- c. K+ d. HCO3- e. Ca2+