Which type of T cell is affected by HIV?
A. T Helper cells
B. T Memory cells
C. T Regulatory cells
D. T Cytotoxic cells
Answer: A
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In skeletal muscle, a single contractile response may last up to 100 times longer than the action potential that produced it
Indicate whether the statement is true or false
Dietary glucose is transported into a cell down its concentration gradient with the aid of membrane proteins called Na+/glucose _____.
A. aquaporins B. channel proteins C. receptor proteins D. symporters E. antiporters
Which of the following correctly compares the factors involved in bulk flow of fluid in systemic and pulmonary capillaries?
A. The protein oncotic pressure inside pulmonary capillaries is significantly greater. B. There are no lymphatic vessels to remove fluid from lung interstitial fluid. C. The hydrostatic pressure inside pulmonary capillaries is significantly lower. D. The protein oncotic pressure is lower in pulmonary interstitial fluid than in typical systemic interstitial fluid. E. The Starling's forces overwhelmingly favor reabsorption all along the length of pulmonary capillaries.
Which of the following is true about skeletal muscle?
A. Sensory neurons stimulate muscles to contract. B. There are very few blood vessels in skeletal muscle. C. Every muscle fiber receives a branch of an axon from the nerve. D. There are very few nerve fibers in a muscle. E. All of these are true.