What is the pH of the saliva?
A. 7.8 to 8.0
B. 6.8 to 7.5
C. 6.8 to 7.0
D. 6.5 to 7.0
Answer: C
You might also like to view...
Which of the following statements about the response of arteriolar smooth muscle to changing oxygen partial pressures is TRUE?
A. Systemic arterioles respond to a decrease in PO2 by constricting, but pulmonary arterioles dilate in response to decreased PO2. B. Both systemic and pulmonary arterioles respond to a decrease in PO2 by dilating. C. Both systemic and pulmonary arterioles respond to a decrease in PO2 by constricting. D. Changes in PO2 do not affect arteriolar smooth muscle in the pulmonary system. E. Systemic arterioles respond to a decrease in PO2 by dilating, but pulmonary arterioles constrict in response to decreased PO2.
Which of the following systems produces waste in the kidney that moves to the ureters, and is stored in the urinary bladder?
a. Lymphatic system. b. Urinary system. c. Respiratory system. d. Digestive system.
When the pancreas releases insulin in direct response to blood glucose, this is an example of ________ stimulation.
A. humoral B. neural C. hormonal D. negative feedback
The attachment of a skeletal muscle that moves when the muscle contracts is the:
a. origin b. insertion c. aponeurosis d. central tendon