Synaptic delay is caused by
A) neurotransmitter diffusion.
B) binding of acetylcholine to post-synaptic receptors.
C) calcium influx and neurotransmitter release.
D) production and transport of neurotransmitter within the neuron.
E) the lack of permeability of the post-synaptic membrane.
C
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Athletes might abuse which of the following chemicals made in the urinary system to
improve performance by increasing red blood cell production? A) Urea B) Glomerular filtrate C) Erythropoietin (EPO) D) ADH
Neurosecretory neurons
a. release neurotransmitters b. release hormones c. are unable to conduct action potentials, unlike ordinary neurons d. perform both a and b e. are found in most endocrine glands
_____ kill bacteria via phagocytosis and digestion. The granules of these white blood cells produce a killing zone around them.
A) Neutrophils B) Basophils C) Cytotoxic T cells D) Natural killer cells E) Suppressor T cells
Which of the following hormones acts on the pancreas?
A) gastric-inhibitory peptide B) cholecystokinin C) secretin D) All of the answers are correct.