Insulin is produced by the __________ cells of the pancreas.
A.)beta
B.)alpha
C.)acinar
D.)delta
A.)beta
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When an action potential passes over the surface of a synaptic knob, the contents of the vesicles are released in response to the presence of
A. sodium ions. B. neuropeptides. C. neurotransmitters. D. calcium ions.
We lack awareness of many of our bodies' systems for maintaining homeostasis. The sensations, movements, and secretions of organs such as the heart and intestines are governed by the
A. autonomic nervous system. B. somatic nervous system.
The hollow center of long bone is called the ________________________________________ cavity
Fill in the blank(s) with correct word
____________________ is the pigment that can store small amounts of oxygen in the skeletal muscle
Fill in the blank(s) with correct word