Question

Answer these five questions for part D)

25) The secretion of LH causes ________. Select all that apply (2 points)

A) Corpus luteum formation

B) Ovulation

C) Inhibition of testosterone

D) FSH secretion

E) Menopause

26) During the proliferative phase, the secretion of what hormones are increased? Select all that apply (1 points)

A) FSH

B) LH

C) Estrogen

D) Progesterone

E) Testosterone

27) Identify the phases of the menstrual cycle. Select all that apply (1 points)

A) Secretory phase

B) Proliferative phase

C) Menopausal phase

D) Menses

E) Fertile Phase

28) Events that occur during the ovarian cycle include the ______.  Select all that apply (1 points)

A) Secretory phase

B) Proliferative phase

C) Luteal phase

D) Follicular phase

E) Ovulation

29) What occurs during menses?  Select all that apply (2 points)

A) Secretion of glycogen by endometrial cells

B) Necrosis of the functional layer

C) Constriction of spiral arteries

D) Contraction of uterine smooth muscle

E) Increased secretion of progesterone

30) What are the functions of the placenta? Select all that apply (1 points)

A) Secrete hormones

B) Remove fetal waste

C) Produce mucus necessary for lubrication of the v

D) Contract for delivery of the baby

E) Provide nutrients for the fetus

Answer 1

25. LH causes

Ovulation

Corpus luteum formation

LH acts on lydig cells to produce testosterone hence it doesn't inhibit testosterone.

LH ceases Or decrease the secretion of FSH.

LH has no role in causing menopause.

26:

During proliferative phase

FSH, LH and estrogen levels increases.

Progesterone level rises in luteal phase.

Testosterone is a male hormone.

27:

Secretory phase, Proliferative phase and mensus are the menstrual phases.

Menopausal phase is complete stoppage of menstrual cycles in a female.

Fertile phase is the time in which a female can produce eggs.

A,B,C are the right options.

28:

ovarian cycle
The 28 days of the menstrual cycle as they apply to events in the ovary. The ovarian cycle has three subphases:
1. the follicular phase
2. ovulation
3. the luteal phase

29:

During menses

Menstrual flow: 50-150mL of blood, tissue fluid, mucus, and epithelial cells shed from edometrium.

-occurs because of DECLINING LEVELS OF PROGESTERONE AND ESTROGENS: -stimulate release of PROSTAGLANDINS,

-uterine spiral arterioles to constrict, -cells they supply become O2 deprived,

-and die, -stratum functionalis sloughs off, -endometrium is then very thin, -only stratum basalis remains.

B) Necrosis of the functional layer

C) Constriction of spiral arteries

Are correct.

The other options are wrong because

A. Glycogen is secreted by endometrium is during secretory phase.

D. Uterus has skeletal muscles not the smooth muscle

E. The progesterone levels fall because of which menses occurs.

30:

The functions of placenta are

supplies the developing organism with food and oxygen,

carries waste away for excretion by the mother,

slows the maternal immune response so that the mother's body does not reject the fetal tissues, and

produces hormones that help maintain the pregnancy.

Cand D are wrong

Placenta doesn't produce mucus for the lubrication, v does.

Contraction of uterus does deliver baby not the placenta.