With a normal glomerular filtration rate, the entire volume of blood in the body will be filtered approximately every ________ minutes.
A. 60
B. 25
C. 40
D. 90
Answer: C
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Which is TRUE about the comparison of excitation-contraction coupling in cardiac muscle with that in skeletal muscle?
A. Extracellular Ca2+ plays a major role in cardiac but not skeletal muscle. B. The mechanism for Ca2+ release from the sarcoplasmic reticulum is the same in both types of muscle. C. Intracellular Ca2+ stores are necessary for contraction in skeletal muscle, but not in cardiac muscle. D. Troponin sites are completely saturated immediately after Ca2+ release in both types of muscle. E. There is no net change in total intracellular Ca2+ concentration in either muscle.
Platelets are produced from cells called ________.
A. myeloid stem cell B. hemocytes C. lymphoid stem cell D. megakaryocytes
Answer the following questions true (T) or false (F)
1. All types of sweat glands release their products by exocytosis, a type of secretion known as merocrine secretion. 2. The rule of nines is used to distinguish the various types of skin cancers from one another. 3. The ABCDE rule divides the body into 11 areas, each representing 9% of the total body surface area to estimate the percent of the body affected by burns.
The most abundant element in the human body, by weight, is ________
A) calcium B) nitrogen C) carbon D) oxygen E) hydrogen