Which statement about peripheral chemoreceptors is incorrect?
a. They are stimulated whenever the arterial falls below normal.
b. They are stimulated by a rise in arterial .
c. They are stimulated by an increase in arterial H+.
d. They are located in the carotid arteries and in the aortic arch.
e. When stimulated, they reflexively increase ventilation.
A
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The lesser omentum is
A) a major portion of the stomach. B) attached to the stomach at the greater curvature. C) important in the digestion of fats. D) a fatty sheet that hangs like an apron over the abdominal viscera. E) a mesentery that extends from the stomach to the liver.
When there is a decrease in blood calcium levels, osteoclast activity
a. Stays the same b. Decreases c. Increases
Specific arrangements of atoms within an organic molecule that confer characteristic chemical properties upon that molecule are called
a) hydrocarbon chains. b) polymers. c) carbon skeleton. d) functional groups. e) isomers.
The esophagus is a tube that carries food from the mouth to the stomach. It does not secrete any enzymes or absorb any nutrients, but it does need to stand up to significant friction and stress. The type of epithelium most likely lining the esophagus would be:
A) stratified squamous epithelium. B) cuboidal epithelium. C) simple squamous epithelium. D) transitional epithelium. E) simple columnar epithelium.