What is arteriolar and bronchiolar smooth muscle especially sensitive to in their immediate environments?
a. O2 levels
b. CO2 levels
c. surfactant levels
d. pH
e. glucose
b
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A patient who has been both vomiting and having diarrhea is losing all of the following except ________ from his body
A) water B) sodium C) bicarbonate ion D) hydrogen ion E) protein
All cells must obtain nutrients, form new chemical structures, and dispose of waste molecules
Indicate whether this statement is true or false.
Melanin, hemoglobin, and carotene give color to the skin.
Answer the following statement true (T) or false (F)
Which feature permits the compression necessary to pump large volumes of blood out of the ventricles?
A. Absence of oxygenated blood in the atria B. Presence of papillary muscles in the ventricles C. Arrangement of cardiac muscle in the heart wall D. Negative pressure inside the ventricles E. Presence of skeletal muscle tissue in the heart skeleton