Which of the following would increase resistance to blood flow?
A. A decrease in the radius of the vessel
B. A decrease in blood viscosity
C. A decrease in the number of red blood cells
D. A decrease in the length of the vessel
E. A decreased hematocrit
Answer: A
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Which of the following describes fenestrated capillaries?
A. They are the most common type of capillary in the body. B. They allow for rapid passage of large molecules such as formed elements in the bone marrow. C. They are found in most organs. D. They are important in organs that engage in absorption or filtration. E. They have no basal lamina.
Explain the shared similarity between the following organs (pancreas, testis, kidney, heart)
A) All of these organs secrete hormones. B) All of these organs are glandular. C) All of these organs filter or move blood. D) All of these organs have a hollow interior.
Which is an accurate description of the cortical association areas?
A. They are all found in the parietal lobe of the cerebral cortex. B. They integrate multiple types of sensory information and are responsible for complex processing of sensory information. C. They are the cortical locations where primary sensory information first arrives from specific ascending pathways. D. They are found deep in the cerebrum, surrounding the thalamus. E. Their main input is sensory information arriving along neurons that project directly from the thalamus.
The pineal gland produces ________
A) thymosin B) melatonin C) estrogen D) insulin E) cortisol