What is the result of the inflation reflex?
A. An increase in the duration of inspirations
B. An increase in the duration of expirations
C. A decrease in the duration of inspirations
D. An increase in the duration of inspirations and a decrease in the duration of expirations
E. A decrease in the duration of expirations
Answer: C
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Cations will ________ each other.
A) attract B) not react with C) repel
Parathyroid hormone (PTH) is secreted by the parathyroid glands in response to low blood concentration of calcium ions. This mechanism operates by a ________
A) hormonal stimulus B) humoral stimulus C) neural stimulus D) messenger stimulus E) steroid stimulus
Implantation of a blastocyst
A. requires the presence of high concentrations of follicle-stimulating hormone (FSH). B. takes place at a time in the typical menstrual cycle when estrogen concentration in the blood is higher than progesterone concentration in the blood. C. normally occurs within the oviduct (fallopian tube). D. normally begins around day 21 of the typical menstrual cycle. E. occurs within 24 hours of fertilization of the oocyte.
Which of the following structures is not part of the spermatic cord?
a. epididymis b. nerves c. blood vessels d. vas deferens