Release of which neurotransmitter leads to the excitation and contraction of skeletal muscles?
A) acetylcholine
B) epinephrine
C) glutamate
D) serotonin
Answer: A) acetylcholine
You might also like to view...
Precapillary sphincters will
A. open when the tissue needs nutrients. B. control blood flow into the true capillaries. C. close when the tissue's needs have been met. D. cause blood to flow directly from the metarteriole into the postcapillary venule. E. All of these answers are correct.
Complex carbohydrates are stored in the body as ________
A) glucose B) glycogen C) triglycerides D) cholesterol
Lymph from which of the following area of the body will pass through the thoracic duct before entering the bloodstream?
A. Right ring finger B. Right hip C. Right shoulder D. None of the choices are correct.
The structural and functional units of the kidney are called
A. nephrons. B. renal papillae. C. renal pyramids. D. renal columns. E. renal tubes.