CH 26 HW: Reproductive System
How many tetrads form during synapsis of meiosis for humans?
23
Place these stages of the ovarian cycle in the correct order. 1. Corpus albicans 2. Vesicular (tertiary) follicle 3. Primary follicle 4. Ruptured follicle 5. Primordial follicle 6. Secondary follicle 7. Corpus luteum
5, 3, 6, 2, 4, 7, 1
The most common cause of cervical cancer is __________.
HPV infection
Endometriosis is characterized by ectopic growth of the endometrium. Where is the endometrium normally found?
Innermost tissue layer of the uterus
What is the action of luteinizing hormone (LH)?
LH stimulates interstitial cells of the testes to produce testosterone.
Which of the following is true about the male climacteric?
Levels of LH and FSH are elevated.
Ovulation kits detect the timing of ovulation by measuring the levels of a hormone that stimulates ovulation and peaks at the time of ovulation. This hormone is:
Luteinizing hormone (LH)
Why does the CDC recommend girls as young as 11 be vaccinated against the human papillomavirus (HPV)?
Receiving the vaccination before they are sexually active will minimize their risk of contracting the virus in the future.
A young 25-year-old bride wants children someday but wants to enjoy time with her new husband before they start a family. She also has a history of blood clots due to a bleeding disorder. What would be the most appropriate form of birth control for her?
She could use any type of barrier method contraceptive but should not consider any hormonal contraceptive due to her bleeding disorder.
A young female has begun taking herbal supplements that mimic the effects of progesterone. What affect will this have on her monthly cycle?
She will most likely not menstruate because the high levels of progesterone will maintain her endometrial lining, mimicking pregnancy.
Which of the following is an example of a countercurrent exchange system?
The pampiniform venous plexus and the testicular artery
What is the main female gonad?
ovary
What is the cause of trichomoniasis?
parasite
The hormone produced by the corpus luteum that is the primary ovarian hormone after ovulation is __________.
progesterone
Synapsis and crossing over takes place during __________.
prophase I of meiosis
At what point in life does spermatogenesis begin in a male?
puberty
Contraction of the cremaster muscle:
pulls the testes closer to the body.
Which of the following can be fertilized?
secondary oocyte
Which of the following male accessory sex glands produces a yellowish secretion containing fructose, prostaglandins, coagulating proteins and enzymes?
seminal vesicle
Which of the following glands produces the majority of the fluid in semen?
seminal vesicles
Where does sperm production occur within the testis?
seminiferous tubules
Two identical copies of the same chromosome are called __________.
sister chromatids
The stem cells that give rise to new sperm are called __________.
spermatogonia
What is the maturation process in which spermatids elongate and shed excess cytoplasm?
spermiogenesis
Which portion of the uterus is shed during menstruation?
stratum functionalis of the endometrium
A man that is experiencing emotional or physical stress may not be able to maintain an erection because
stress activates the sympathetic nervous system, which suppresses the parasympathetic response needed for an erection
Which of the following is the main hormone that regulates spermatogenesis?
testosterone
A female patient complains of a greenish-white discharge from her vagina that has a strong odor. She also experiences itching and burning of her genitals. Determine the sexually transmitted infection (STI) she has.
trichomoniasis
Where should a fertilized ovum implant?
uterus
Which of the following is not a structure of the external female genitalia?
vagina
From which follicle will a secondary oocyte be released through ovulation?
vesicular (tertiary) follicle
Which of the following is a barrier method of birth control?
Diaphragm
What effect do you think douching, or washing, has on the vagina?
Douching washes away beneficial bacteria and alters the pH balance of the vagina.
What structures are NOT present in the mammary gland of a non-lactating female?
alveoli
Where does fertilization usually occur?
ampulla of the uterine tube
The process by which immature follicles degenerate and are resorbed during the follicular phase of the menstrual cycle is called __________.
atresia
By what time of life are all oogonia formed in females?
before birth
Secondary oocytes form __________.
between puberty and menopause
Which of the following are tube-shaped organelles that assist in organizing the spindle fibers during mitosis?
centrioles
A couple want to have sexual intercourse, and they do not wish to use a behavior method as a form of birth control since they know it comes with high risk. What could be an alternative method?
condoms
What process shuffles the alleles and causes homologous chromosomes to no longer be identical during meiosis?
crossing over
Assuming a 28-day ovarian cycle, on what day should ovulation occur?
day 14
Use of anabolic steroids leads to elevated concentrations of testosterone and testosterone derivatives. Prolonged use of anabolic steroids may lead to __________.
decrease in LH and FSH
Mitosis produces cells that are ___________; meiosis produces cells that are ___________.
diploid; haploid
Enlargement of the prostate can constrict the:
ejaculatory duct.
The term __________ describes the movement of sperm and accessory gland secretions into the urethra.
emission
The innermost epithelial layer of the uterus is the __________.
endometrium
In females, which hormone is directly responsible for the development of female secondary sex characteristics and helps regulate the menstrual cycle?
estrogens
When menstruation has ceased for at least one year, what has occurred?
female climacteric, or menopause
The fusion of sperm and egg is known as:
fertilization
The structures that catch the oocyte upon ovulation are the __________.
fimbriae
Which of the following is NOT a sexually transmitted infection (STI) caused by bacteria?
genital herpes
The primary sex organs are also called __________.
gonads
What type of birth control may prevent pregnancy by manipulating the hormones and interfering with ovulation?
hormonal method
A female wants to take a hormonal contraceptive that contains progesterone only. What could be an option?
intramuscular injections of the Depo-Provera shot
Women who wish to become pregnant should have sexual intercourse after a surge in:
luteinizing hormone (LH).
Which of the following accompanies puberty?
menarche
What portion of the uterus is composed of smooth muscle and contracts rhythmically during orgasm and childbirth?
myometrium
What hormonal effects will a tubal ligation have on a woman?
A woman would experience no hormonal affects from a tubal ligation because the uterine tubes do not produce hormones
Some migraine medications can inhibit nitric oxide production. What affect will this have on a man's sexual response?
Without nitric oxide, the man will not be able to have an erection.
Estrogens are responsible for:
adipose tissue deposits in the breasts, hips, and thighs.
Which of the following is regulated by a positive feedback mechanism in females?
ovulation
Which portion of the penis is called the foreskin?
prepuce
Secondary follicles contain a ___________ oocyte.
primary
Spermiogenesis begins with a ________ and ends with a ________.
spermatid, sperm
A patient presents with a pink skin rash in different parts of the body, fever, and joint pain. A probable diagnosis would be __________.
syphilis
Which hormone is directly responsible for the development of secondary sex characteristics in males?
testosterone
Which phase of the uterine cycle is characterized by regrowth of the functional layer of the endometrium?
Proliferative phase
How many spermatids result from one spermatogonium?
4
Which of the following is true about oogenesis?
It releases an immature gamete each month.