________ are fixed macrophages found in the liver.
Fill in the blank(s) with the appropriate word(s).
Kupffer cells
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Outline the relationship between hypertension and the development of congestive heart failure.
What will be an ideal response?
Mature molecules of tropocollagen are found in the:
a. Cisternae of the rough endoplasmic reticulum of a fibroblast b. Extracellular environment of a fibroblast c. Golgi apparatus of a plasma cell d. Secretory vesicles of a fibroblast e. Smooth endoplasmic reticulum of a macrophage
Which is not a reason gas exchange is efficient at the blood air barrier?
A) Partial pressure differences are substantial. B) Distance is short. C) Surface area is large. D) Gap junctions facilitate fast movement. E) Gases are lipid soluble.
The color of which skin pigment is genetically determined?
a. carotene b. keratin c. melanin d. hemoglobin