In cases where the plasma concentration of an ion or nutrient affects the secretion rate of a hormone, the affected hormone is usually a regulator of the homeostasis of that ion or nutrient.
Answer the following statement true (T) or false (F)
True
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Which of the following does mesenchyme give rise to?
A. Nervous tissue B. Muscle, bone, and blood C. The digestive organs and endocrine glands D. The reproductive and urinary systems E. The integumentary system and exocrine glands
Neuropeptides that affect a neuron's response to other neurotransmitters are called ________.
Fill in the blank(s) with the appropriate word(s).
Inside a neuron, calcium binding sites are likely found on
A. proteins associated with synaptic vesicles. B. smooth endoplasmic reticulum. C. kinesin proteins. D. dyenin proteins. E. lysosomal proteins.
Which ion is released from the sarcoplasmic reticulum to allow muscle contraction?
A. Ca2+ B. K+ C. Na+ D. Mg2+