2 of the 46 chromosomes in a human body cell are ____________________
Fill in the blank(s) with correct word
sex chromosomes
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Neurons are able to generate tiny electrical currents by changing the ________ of their membranes.
A. composition B. shape C. pathway D. permeability
Spinal shock is a permanent loss of some of the spinal cord's functions.
Answer the following statement true (T) or false (F)
A nerve cell and a muscle cell have the same genes, but express different subsets of
them. Indicate whether the statement is true or false
The parasympathetic nervous system
a. has long preganglionic fibers that end on terminal ganglia, which lie in or near the effector organ. b. dominates in quiet, relaxed situations. c. releases a postganglionic neurotransmitter that binds with muscarinic receptors. d. both (a) and (b) above. e. all of these answers.