Module 12 - Reproductive System Flashcards
(49 cards)
What are the four glands involved in semen production?
Testes, seminal vesicles, prostate, and bulbo-urethral glands.
What is the primary function of the testes?
To produce sperm.
Where are the testes located?
Outside the pelvic cavity in the scrotal sac.
Why does the scrotum adjust its position in response to temperature?
To maintain an optimal sperm production temperature, 3–4°C below core body temperature.
Where is sperm stored after maturing in the testes?
In the epididymis.
What is the function of the bulbo-urethral glands?
To secrete lubricating fluid that reduces urethral acidity and friction during ejaculation.
What fluid do the seminal vesicles secrete?
A sugar-, protein-, and enzyme-rich fluid that energizes sperm and lowers vaginal acidity.
What is the role of the prostate in semen production?
It secretes an alkalizing protein-rich fluid that enhances sperm motility and viability.
What structure carries sperm from the epididymis to the ejaculatory duct?
The ductus deferens.
What is semen composed of?
Sperm plus secretions from the seminal vesicles, prostate, and bulbo-urethral glands.
What dual function does the urethra serve in males?
It transports both urine and semen.
What are the two types of erectile tissue in the penis?
Corpora cavernosa (x2) and corpus spongiosum.
What is the function of the corpora cavernosa?
To fill with blood and cause penile erection.
What does the corpus spongiosum surround and support?
It surrounds the urethra and helps maintain its patency during ejaculation.
What are the major structures of the female reproductive system?
Uterus, cervix, uterine (fallopian) tubes, ovaries, and vagina.
Where is the uterus located?
Between the urinary bladder and rectum in the pelvic cavity.
What is the primary function of the uterus?
To support implantation and fetal development during pregnancy.
What are the four regions of the uterus?
Fundus, corpus (body), isthmus, and cervix.
What is menstruation?
The shedding of the endometrial lining when implantation does not occur.
What is the cervix?
The tubular neck of the uterus.
What are the openings of the cervix called?
Internal os (to uterus) and external os (to vagina).
What are the functions of the cervix?
Passage for menstrual flow, sperm entry, and dilation during childbirth.
How long are the uterine (fallopian) tubes?
10–12 cm.
What is the function of the fimbriae?
To pull the released egg into the fallopian tube.