Communication between cells occurs when chemical messengers from one cell bind to ________ on another cell.
A. second messengers
B. channel proteins
C. integrins
D. receptor proteins
E. marker molecules
Answer: D
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Fibers that pass through the sympathetic chain ganglia without synapsing join to form a network called the ________
A) white ramus B) splanchnic nerves C) gray rami D) spinal nerves
What unit of bone consists of a central canal (containing blood vessels, nerves, and lymph vessels) surrounded by concentric rings of calcified matrix?
A. Osteocyte B. Canaliculus C. Osteon D. Lamella E. Trabeculum
Identify the prime mover that facilitates the action of your nostrils in the following situation: After a particularly vigorous exercise class, your strong breathing is accompanied by flaring of the nostrils
A) nasalis B) frontalis C) mentalis D) procerus
When precapillary sphincters are contracted and closed, blood flows through the shunts and bypasses the tissue cells in that region
Indicate whether the statement is true or false