The nodes of Ranvier are
a. action potential recordings
b. breaks in the myelin covering
c. spaces between neurons
d. specialized cells around axons
e. structures on axon terminals that release neurotransmitter
B
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Briefly explain the sources of energy for a one-minute sustained muscle contraction.
What will be an ideal response?
Identify the FALSE statement regarding sensory receptor cells.
A) Each type of sensory receptor responds only to the stimulus that defines the receptor. B) Sensory transduction converts stimulus energy into a receptor potential. C) A graded potential is referred to as a receptor potential. D) Threshold is the minimal stimulus intensity required to generate an action potential. E) Many sensory receptor cells are NOT nerve cells.
Plasma is mostly
A) organic molecules. B) ions. C) blood cells. D) water. E) proteins.
Placing a finger between a cat's legs during restraint will give you more control over its movements
Indicate whether the statement is true or false