The analysis of the internal structure of individual cells is called
A) cytology.
B) histology.
C) embryology.
D) physiology.
E) anatomy.
A
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A high speed of conduction along axons is very important for the survival of organisms, particularly when quicker response times allow escape from a predator
Many factors affect speed of conduction, including temperature, myelination, and the diameter of the axon. Discuss how myelination and diameter affect the cable properties of a neuron and affect conduction speeds. What will be an ideal response?
Some of the precursors for secretion of hormones by the placenta come from the fetal adrenal cortex
Indicate whether the statement is true or false
Muscle fibers and neurons are called electrically excitable cells because
A) their membranes change shape in response to electricity. B) they generate action potentials. C) their surfaces respond to the release of acetylcholine. D) they have junctional folds in the membranes that can trap electrical charges.
Identify structure "E" on the bottom diagram
A. autonomic ganglion B. somatic motor neuron C. effector organ (smooth muscle of GI tract) D. postganglionic neuron E. preganglionic neuron