What is the normal blood pressure for a 20-30 year old?
A. 90/50 mmHg
B. 120/72 mmHg
C. 140/90 mmHg
D. 139/89 mmHg
Answer: B
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The amount of blood returning to the heart is the ________.
Fill in the blank(s) with the appropriate word(s).
Viruses have cell walls
Indicate whether the statement is true or false
Choose the correct statement about peg cells.
A) They are located within the vestibular bulbs. B) They secrete mucins within the uterine tubes. C) Their secretion is necessary for capacitation. D) Their secretion neutralizes the vagina. E) They surround the mature Graafian follicle.
Plasma is ________ while formed elements are ________.
A. mostly protein; the matrix B. the liquid portion of blood; the cells C. a blood gas; blood clots D. lacking in protein; regulators of blood osmolality E. the cellular portion of blood; acellular components