A neuron that conducts pain sensations to the central nervous system would be classified as a(n)
A. motor neuron.
B. sensory or afferent neuron.
C. efferent neuron.
D. association neuron.
E. interneuron.
B
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What is the name of the area of the sarcolemma that is associated with the neuromuscular junction?
A) junctional folds B) synaptic terminal C) synaptic cleft D) motor end plate
Some prey animals, such as rabbits, have laterally placed eyes, and the images on their two retinas do not overlap. Such animals would be expected to show _________ depth perception
A. excellent B. poor
Neurons move material away from the soma by retrograde transport
Indicate whether the statement is true or false
Answer the following questions true (T) or false (F)
1. There are two phases of the cardiac cycle in which all four heart valves are open: the isovolumetric contraction phase and the isovolumetric relaxation phase. 2. Pressure in the aorta is greater than pressure in the pulmonary trunk; therefore, the left ventricle has to generate a greater pressure than the right ventricle in order to eject blood from the heart. 3. Stroke volume (SV) can be calculated by subtracting the end-diastolic volume (EDV) from the end-systolic volume (ESV).