16.Which of the following is a descriptionof estrogen as feedback to the brain during follicular phase?
A.Positive
C.Neutral
B.Negative
D.Both positive and negative
17.How will you describe the hormonal level of LH when the pituitary gland receive a negative feedback?
A.The level of LH decreases.
B.The level of LH increases.
C.The level of LH remains constant.
D.The level of LH is not affected.
18.Which of these levels of hormones is described as a positive feedback to the ovaries during
ovulation?
A.High level of LH
C.Low level of LH
B.High level of progesterone
D.Low level of progesterone
19.How will you describe the level of progesterone after menstruation?
A.Low
C.Constant
B.High
D.Unchanged
20.What type of feedback mechanism is described when one substance is inhibited or suppressed by
the increasing level of another substance?
A.Positive
C.Neutral
B.Negative
D.Both positive and negative
21.Which of thesestatements describes the coordinating function of the nervous system withthe
endocrine system to maintain homeostasis?
A.The nervous and endocrine systems maintain a normal range of body temperature.
B.The nervous and endocrine systems maintain a high calcium level in the blood.
C.The nervous and endocrine systems maintain a normal level of body wastes.
D.The nervous and endocrine systems maintain a low level of blood sugar.