Entries by Esther Esther

Alex was 15 minutes late for A&P class. While searching for his pen, he thought he heard the instructor say something about the heart affecting water balance but he had thought it was the other way around. Alex just decided to ignore the whole thing. Bad move, Alex! Explain the relationship of the heart to fluid balance.

1. Alex was 15 minutes late for A&P class. While searching for his pen, he thought he heard the instructor say something about the heart affecting water balance but he had thought it was the other way around. Alex just decided to ignore the whole thing. Bad move, Alex! Explain the relationship of the heart […]

 

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Negative feedback is in operation because the result (an increase in fluid intake) is opposite to the initiating stimulus (

1 Negative feedback is in operation because the result (an increase in fluid intake) is opposite to the initiating stimulus (dehydration). 2 Elevated aldosterone promotes abnormally high renal reabsorption of NaCl and water, which expands blood volume and increases blood pressure. Increased blood pressure causes more fluid to filter out of capillaries and accumulate in […]

 

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Breath holding causes blood pH to decrease slightly as CO2 and H_ accumulate.

1 The major cation in ECF is Na_. 2 Breath holding causes blood pH to decrease slightly as CO2 and H_ accumulate. 3. Yearning to have a child, thirty-year-old Janelle has no trouble getting pregnant but has trouble maintaining a pregnancy. She miscarries early in her pregnancies. What vital hormone may be insufficient and contributing […]

 

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Your uncle Mike has just been diagnosed with an enlarged prostate (benign prostatic hyperplasia). What are the symptoms of this condition? What is the effect on the semen of removal of the prostate?

1. Julio and his wife have been trying unsuccessfully to become pregnant. The fertility clinic suggested that the problem may have something to do with Julio’s habits of wearing very closefitting briefs during the day and taking a long nightly soak in his hot tub. What effect could this have on fertility? 2. Your uncle […]

 

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Functionally, the penis is considered a supporting structure

1 Functionally, the penis is considered a supporting structure. 2 Spermatogonia (stem cells) are the least mature. 3 Crossing-over permits the formation of new combinations of genes from maternal and paternal chromosomes. 4 The middle piece contains mitochondria, which produce ATP that provides energy for locomotion of sperm. 5 The Sertoli cells secrete inhibin.   […]

 

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The female external genitals are collectively referred to as the vulva or pudendum.

The female external genitals are collectively referred to as the vulva or pudendum. 2 Ovarian follicles secrete estrogens, and the corpus luteum secretes estrogens, progesterone, relaxin, and inhibin. 3 Primary oocytes are present in the ovary at birth, so they are as old as the woman is. In males, primary spermatocytes are continually being formed […]

 

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The mons pubis, clitoris, prepuce, and external urethral orifice are anterior to the vaginal opening.

1 The mons pubis, clitoris, prepuce, and external urethral orifice are anterior to the vaginal opening. 2 Oxytocin regulates milk ejection from the mammary glands. 3 The hormones responsible for the proliferative phase of endometrial growth are estrogens; for ovulation, LH; for growth of the corpus luteum, LH; and for the midcycle surge of LH, […]

 

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Your neighbor has put up a sign to announce the birth of their twins, a girl and a boy. Another neighbor said “Oh, how sweet! I wonder if they’re identical twins.” Without even seeing the twins, what can you tell her?

1. Your neighbor has put up a sign to announce the birth of their twins, a girl and a boy. Another neighbor said “Oh, how sweet! I wonder if they’re identical twins.” Without even seeing the twins, what can you tell her? 2. The science class was studying genetics at school and Kendra came home […]

 

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Felicity is concerned about the health of her unborn baby. Due to Felicity’s medical history,

Felicity is concerned about the health of her unborn baby. Due to Felicity’s medical history, her physician wants to test for the presence of a genetic disorder. Felicity is afraid that this will hurt the baby. The physician reassures Felicity that the procedure will not touch the baby even though it will get a sample […]

 

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Capacitation refers to the functional changes in sperm after they have been deposited in the female reproductive tract that enable them to fertilize a secondary oocyte.

1 Capacitation refers to the functional changes in sperm after they have been deposited in the female reproductive tract that enable them to fertilize a secondary oocyte. 2 A morula is a solid ball of cells; a blastocyst consists of a rim of cells (trophoblast) surrounding a cavity (blastocyst cavity) and an inner cell mass. […]

 

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