Which chemical factors in blood or cerebrospinal fluid stimulate the respiratory centers?
A) Ca2+, Na+, and K+ concentrations
B) Cl-, Na+, and K+ concentrations
C) pH, PO2, and PCO2 concentrations
D) PO2, glucose, and lactate concentrations
E) hematocrit, glucose, PO2, and PCO2 concentrations
Answer: C
You might also like to view...
Which fingerlike projections found in the dural venous sinuses reabsorb cerebrospinal fluid?
a) Choroid plexuses b) Microvilli c) Arachnoid villi d) Dural villi e) Lemnisci
Colloid osmotic pressure in plasma is fairly constant in a healthy person. How would protein starvation affect this pressure? How may a very high-protein diet affect this pressure? Suppose a person is suffering from an imbalance that causes an increase in colloid osmotic pressure from the typical 25 mm Hg to 30 mm Hg. Calculate the effect on net fluid flow across the capillary. What negative
health consequences could result? What will be an ideal response?
Which of the following fractures causes a break in a bone that stays in place?
a. compound c. greenstick b. subluxation d. simple
Osmosis and simple diffusion do NOT require the actions of carrier proteins.
Answer the following statement true (T) or false (F)