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Which of the following accurately describes how hormones are secreted in the body?
Hormones are made and secreted by cells and collections of cells (organs) that make up the endocrine system.
Hormones are carried by endocrine cells from an endocrine gland to a target cell. T/F
False
Hormones in the blood stream travel all over the body, not just to target cells. T/F
TRUE
Which of the following are endocrine glands? Select all that apply.
Thyroid Pancreas Ovaries Testes Adrenal
Some hormone-secreting cells are not organized into organs, but exist individually or in small clusters of cells. T/F
TRUE
Which of the following aspects of an analogy about how hormones work would be a problem?
An analogy in which the hormone receptor and target cell were separate, unconnected parts.
Fill in the blank with ONE word so that this sentence describes a positive feedback loop: The presence of a signal leads to a(n) ______ of the same signal.
increase
What is a tropic hormone?
A hormone that stimulates or inhibits the release of other hormones.
Which of these options best describes a component of hormone function in the human body?
Hormones can bind to target cells in different parts of the body, causing one or more responses in each target cell
Which of the following statements about the male reproductive system is false?
Both the prostate and the bulbourethral glands produced components of the semen. -->The prostate gland is located in the testes. Sperm mature in seminiferous tubules in the testes. The vas deferens carries sperm from the testes to the penis.
Where are sperm produced?
Seminiferous tubules
Which of the following are components of hormonal regulation of male reproduction? Select all that apply.
Anterior pituitary Leydig cells Hypothalamus Sertoli cells
Which of the following are components of hormonal regulation of male reproduction? Select all that apply.
Hypothalamus Anterior pituitary Leydig cells Sertoli cells
Some of the same hormones regulate male and female reproduction. T/F
TRUE
Which hormone causes FSH and LH to be released?
GnRH
In a 28-day cycle, on which day does ovulation occur?
Day 14
Which hormone can have both a stimulating and an inhibiting effect in the female reproductive cycle?
Estrogen (aka estradiol)
Estrogen, progesterone, and testosterone are hormones that control human reproduction after being produced in the brain. T/F
False
Where is an egg fertilized (joined with a sperm)?
In the fallopian tube
Human females have two reproductive cycles that happen sequentially. The ovarian cycle occurs first and then the menstrual cycle occurs.
False
At what point in her reproductive cycle does a women shed her uterine lining (menses)?
At the beginning of the cycle
The average female reproductive cycle is 28 days (4-weeks) long, but cycles vary from woman to woman. Which of the following helps to explain why different women may have different cycle lengths?
Genetic variation
Which hormones directly stimulate the development of an egg in a woman's ovary? Select all that apply.
FSH,LH
A follicle is a hole through which the egg escapes the ovary. T/F
False
The difference in effectiveness between "perfect use" of birth control and "typical use" of birth control varies among birth control methods. T/F
True
Order these forms of contraception from most (1) to least effective (5) under typical use conditions.
__5__Withdrawl method __3__Diaphragm __1__Itrauterine device __4__Male condom __2__Pills
Which of the following are characteristics researchers hope to achieve in a male contraceptive pill?
>Males are still able to father healthy offspring after they discontinue use of the drug. >Prevents all sperm from fertilizing the female egg. >The effects can be reversed so permanent infertility is not caused.
Which of the following statements are true? Select all that apply.
>After the corpus luteum disintegrates, the uterine lining begins to shed. >The corpus luteum is generated from the follicle that remains after ovulation. >The corpus luteum is sustained by luteinizing hormone for about 7 days.
Which of the following statements is false?
Menstruation occurs just after LH and FSH level peak.
Which of the following statements about hormone regulation of the female reproductive cycle is false?
Low levels of progesterone inhibit the release of GnRH.

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