Which of the following is an effect of angiotensin-II (A-II)?
A) A-II promotes thirst. B) A-II dilates efferent arterioles.
C) A-II decreases blood volume. D) A-II decreases systemic blood pressure.
Answer: A
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Match the following:
A) Polycythemia B) Leukemia C) Anemia D) Embolism 1. Cancerous condition involving white blood cells. 2. Condition in which blood has abnormally low oxygen-carrying capacity. 3. Abnormal excess of erythrocytes resulting in an increase in blood viscosity. 4. Free-floating thrombus in the bloodstream.
What region of the brain might be damaged if a person is unable to interpret associated words or commands even though individual words can be comprehended?
A) the general interpretive center B) the speech center C) the frontal lobes D) the prefrontal cortex E) All of the answers are correct.
Neuron X makes inhibitory axon-axonal synaptic contact with neuron Y at the synapse of Y and neuron Z. Which will occur when action potentials are stimulated in neuron X?
A. The synapse between neurons Y and Z will be changed from an excitatory synapse to an inhibitory one. B. Neuron Y will be inhibited from reaching the threshold to fire an action potential. C. Neurons Y and Z will both be less likely to reach threshold and fire an action potential. D. The release of neurotransmitter by neuron Y will be inhibited. E. Neurons Y and Z will both be more likely to reach threshold and fire an action potential.
The epithelium of tonsilla palatina is:
(A) multistratified non - keratinizing epithelium (B) multistratified keratinizing epithelium (C) Henle's epithelium (D) Pseudostratified ciliated epithelium