The force-generating sites in a myofibril are the Z lines
Indicate whether the statement is true or false.
FALSE
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At the knee, the small saphenous, tibial, and fibular veins unite to form the ________ vein
A) femoral B) popliteal C) external iliac D) internal iliac E) inferior vena cava
Cholesterol is
A) a dangerous fat that is absent from a healthy body. B) a precursor to steroid hormones, a structural component of cell membranes, and a dangerous fat that is absent from a healthy body. C) a precursor to steroid hormones and a structural component of cell membranes. D) a structural component of cell membranes. E) a precursor to steroid hormones.
The chloride shift occurs when
A) hydrogen ions enter the red blood cells. B) bicarbonate ions enter the red blood cells. C) carbonic acid is formed. D) bicarbonate ions leave the red blood cells. E) hydrogen ions leave the red blood cells.
The hypodermis is rich in adipose, and thus its functions include
A. maintenance of boundaries and sensation of stimuli. B. water regulation and vitamin synthesis. C. frequent regeneration, structural support, and defense against infection. D. organ protection, energy storage, and thermal insulation.