At which stage of life is the percentage of fluid in the human body highest?
A. Infancy
B. Childhood
C. Middle age
D. Advanced age
A
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Some women prolong breastfeeding or lactation in general as a form of birth control. How would extension of lactation be effective in preventing pregnancy?
A. Lactation stimulates production of placental lactinogen, which is a pregnancy hormone and prevents the corpus luteum from degrading and advancing the reproductive cycle. B. The physical stimulation of breastfeeding causes high levels of progesterone to be produced, which cause secretions in the reproductive tract that are hostile to sperm. C. Prolactin is the hormone that corresponds with lactation. It also inhibits ovulation at the pituitary gland level, so as long as lactation is actively occurring, ovulation is prevented. D. Breastfeeding stimulates production of oxytocin, which causes the endometrium to slough off and exit the body in a menstrual period, preventing implantation of a zygote.
A patient with central edema has swollen hands and feet
Indicate whether the statement is true or false.
Of the descriptions given, which is consistent with an abnormal blood smear?
A) Eosinophils outnumbered lymphocytes. B) Neutrophils and lymphocytes were commonly found. C) More red than white blood cells were observed. D) Monocytes were observed but not common.
The transport of amino acids across epithelial membranes requires the ________.
A. Na+/H+ pump B. Na+/K+ pump C. facilitated diffusion D. Ca2+ pump