During pregnancy, estrogen and progesterone from the placenta
A. stimulate FSH and LH secretion and thereby stimulate ovarian follicle development.
B. inhibit FSH and LH secretion and thereby arrest ovarian follicle development.
C. stimulate GnRH secretion and thereby inhibit overgrowth of the uterus.
D. inhibit release of corticotropin-releasing hormone and thereby prevent excessive stress responses
B
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Which of the following spinal curves are referred to as primary curves?
A. the thoracic and cervical curves B. the cervical and lumbar curves C. the cervical and sacral curves D. the thoracic and sacral curves
A/an ____________ is a hollow tube that is inserted into a body cavity to inject or remove fluid
Fill in the blank(s) with correct word
Neoplasms that affect lymphoid tissue are called ______ .
A. lymphadenitis B. lymphoma C. lymphangiography D. lymphangiopathy
________ is the most potent chemical influencing respiration.
A. O2 B. N C. H2O D. CO2