Bio CH 27: hw qs – Flashcards

Which portion of the penis is removed through a procedure known as circumcision? Crus of the penis Bulb of the penis Prepuce (foreskin) Glans penis

Which of these male accessory ducts transports both sperm and urine? Epididymis Urethra Ductus (vas) deferens Ejaculatory duct

During vasectomy, what accessory duct is cut as a form of birth control? Epididymis Ejaculatory duct Urethra Ductus (vas) deferens

Sperm are stored in Ejaculatory duct Ductus deferens Seminiferous tubules Epididymis

Which of the following does NOT add substances to seminal fluid? Prostate gland Urethra Bulbo-urethral glands Seminal glands

The dartos and cremaster muscles are important to the integrity of the male reproductive system. Which of the following is true about the role they play? -They are responsible for penile erection. -They contract to push sperm along the ductus deferens. -They regulate the temperature of the testes. -They contract to allow ejaculation.

Which of the following glands are responsible for about 70% of the volume of semen? -The bulbo-urethral glands -The prostate -The pituitary -The seminal glands

How do the testes respond to exposure to excessive body warmth? -They move close to the pelvic cavity. -Excessive warmth has no effect on the testicles because of their location in the scrotum. -They move away from the pelvic cavity. -Excessive warmth is actually beneficial in that it speeds up the maturation of sperm.

Which of the following inhibits the release of FSH from the anterior pituitary and GnRH from the hypothalamus when the sperm count is high? Luteinizing hormone (LH) Estradiol Inhibin Androgen-binding protein (ABP)

Which of the following keeps the concentration of testosterone in the vicinity of the spermatogenic cells high to stimulate spermatogenesis? -Androgen-binding protein (ABP) -Dihydrotestosterone (DHT) -Inhibin -GnRH

The release of _?_ encourages interstitial endocrine cells to release _?_. -Inhibin; testosterone -Luteinizing hormone; androgen-binding protein -Follicle-stimulating hormone; androgen-binding protein -Luteinizing hormone; testosterone

Which of the following hormones stimulates the release of anterior pituitary gonadotropins? Testosterone FSH GnRH LH

Erection of the penis results from -A parasympathetic reflex -A sympathetic reflex -Dilation of the veins in the penis -Parasympathetic activation of the bulbo-urethral glands

What part of the female duct system is the usual site of fertilization of the ovulated oocyte? -Cervical canal -Uterus -Uterine (fallopian) tube (oviduct) -Vagina

Which specific layer of the uterus is shed during menstruation, approximately every 28 days? -Stratum functionalis of the endometrium -Mesometrium -Myometrium -Stratum basalis of the endometrium

Which structure of the female's external genitalia has erectile tissue like the penis? Labia majora Vulva Mons pubis Clitoris

What are the two fatty, hair-covered skin folds that run posteriorly from the mons pubis? -Labia majora -Clitoris -Labia minora -Greater vestibular glands

The _?_ connects the uterus to the vagina Fallopian tube Fimbriae Round ligament Cervix

Which of the following is FALSE regarding the vagina of an adult female? -The vaginal mucosa lacks glands -The vagina is also called the birth canal -The pH of the adult vagina is alkaline -The mucosa of the vagina is stratified squamous epithelium

The primary function of the uterus is to _?_ -Synthesize female hormones -Protect the ovaries -Regulate the ovarian and menstrual cycles -Receive, retain, and nourish a fertilized ovum

Which of the choices below is not a function of the vagina? -Serves as a passageway for the primary oocyte -Serves as a passageway for menstrual flow -Serves as the birth canal -Receives semen from the penis during sexual intercourse

Select the correct statement about the hormonal events of the ovarian cycle. -The follicle begins to secrete progesterone in response to estrogen stimulation -The LH surge stimulates further development of the secondary oocyte -Rising levels of estrogen start follicle development -High estrogen levels result in a surge of LH release

What hormone promotes ovulation? Luteinizing hormone (LH) Leptin Progesterone Inhibin

Normally menstruation occurs when _?_ -Blood levels of estrogen and progesterone decrease -The corpus luteum secretes estrogen -Blood levels of estrogen and progesterone increase -Blood levels of FSH fall off

What is the role of the corpus luteum? -To stimulate the female sexual response -Ovulation -To produce hormones that maintain the uterine lining during the first months of pregnancy -To produce the primary oocytes

What event coincides with the transition from the proliferative phase to the secretory phase? -Menstruation -Enrichment of the blood supply and glandular secretions prepare for reception of an embryo -Ovulation -Stratum functionalis is shed.

During the secretory phase of the uterine cycle, _?_ -Ovulation occurs -The functional layer of the endometrium regenerates -The endometrium prepares for implantation -The endometrium is shed

During the secretory phase of the menstrual cycle _?_ -The Graafian follicle forms -Progesterone levels are at their highest -Estrogen reaches its highest levels -LH reaches its highest levels