Is it possible to determine blood pressure from a cardiac cycle graph? Why or why not?
A) Yes, but only systolic pressure can be read.
B) Yes, but only diastolic pressure can be read.
C) No, blood pressure must be measured using a pressure cuff and stethoscope.
D) Yes, both systolic and diastolic pressures can be read.
Answer: D
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A. prophase I. B. anaphase II. C. metaphase II. D. prophase II. E. metaphase I.
What is the best description of how a given muscle fiber can be inhibited from contracting?
A. Inhibitory inputs from local reflexes and descending pathways prevent the fiber's motor neuron from firing action potentials. B. Descending inputs from brainstem components of the middle level of the motor control hierarchy make inhibitory synapses onto the muscle fibers. C. Contractions in an antagonistic muscle's fibers are stronger than the given muscle's contractions. D. Golgi tendon organs send afferent neurons directly to muscle fibers that attach to them and release inhibitory neurotransmitter. E. Interneurons in the local spinal cord region send axons to the muscle fiber's neuromuscular junction, where they impose presynaptic inhibition.
Which of the following is not a benefit of breast feeding?
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What is the function of the auditory tube?
A. To transmit sound waves to the inner ear B. To provide an airway between the middle and inner ear C. To provide a passageway for fluid from the middle to the inner ear D. To prevent the invasion of microorganisms into the inner ear E. To equalize air pressure between the atmosphere and the middle ear