What are osteoblasts?
a. Bone-forming cells that produce and package matrix collagen and proteoglycans
b. Cells that breakdown bone tissue during remodeling of long bones
c. Mature bone cells that are found within the lacunae
d. Cells that produce hyaline cartilage in the epiphyseal plate
Answer: a. Bone-forming cells that produce and package matrix collagen and proteoglycans
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A fertilized egg (embryo) attaches itself to the lining of the ____________ where the fetus develops.
Fill in the blank(s) with the appropriate word(s).
Uncoupling proteins function in maintaining long-term neutral energy balance by
a. uncoupling electron transport in mitochondria from ATP production. b. uncoupling glycolysis from ATP production. c. uncoupling food intake from nutrient uptake in the gut. d. all of these. e. none of these.
The coupling of blood flow with the amount of air reaching the alveoli is known as:
A) ventilation-perfusion matching. B) partial pressure. C) Henry's law. D) Boyle's law.
Someone is rushed to the hospital with acute appendicitis. Which serous membrane is in danger of infection?
A. Pleura B. Pericardium C. Peritoneum D. Meninges