REPRODUCTIVE SYSTEM Flashcards
Sex cells
Gametes
A type of cell division in which formation og gametes occur
Meiosis
Chromosomes align as pairs
Synapsis
Organs of male reproductive system
Scrotum
Testes
Epididymis
Vas deferens
Seminal vesicle ejaculatory duct
Urethra
Penis
Seminal vesicle
Prostate gland
Bulbourethral glands
Saclike structure containing the testes
Scrotum
Also called male gonads; oval organs within the scrotum
Testes
Where sperm cells develop
Seminiferous tubule
Endocrine cell that secretes testosterone
Interstitial cell
A tightly coiled series of threadlike tubules that form a comma-shaped structure
Epididymis
Emerges from the epididymis and ascends alongside posterior side of the testis
Vas deferens
Another term for vas deferens
Ductus deferens
Formed by the ducts from the seminal vesicle and the ampulla of the ductus deferens
Ejaculatory duct
Types of urethra:
Prostatic urethra
Membranous urethra
Spongy urethra
Passes through the prostate gland
Prostate urethra
Passes through the floor of the pelvis; surrounded by the external urinary sphincter
Membranous urethra
Extends the length of the penis and opens at its end
Spongy urethra
Male organ of copulation
Penis
Located next to ductus deferens help form ejaculatory duct
Seminal vesicles
Consists of glandular muscular tissue and empties into the urethra
Prostate gland
A pair of small, mucus-secreting glands that empty into the urethra
Bulbourethral glands
Another term for bulbourethral gland
Cowper glands
Formation of sperm cells
Spermatogenesis
Most peripheral germ cells that divide through mitosis
Spermatogonia
Product of secondary meiotic division
Spermatids
Developed spermatid with a head, midpiece, and flagellum
Spermatozoon
Mixture of sperm cells and gland secretions
Semen
Path of sperm
Sperm develop in the seminiferous tubule
Mature in the epididymis
Move through the vas deferens
Receive secretions from seminal vesicles, prostate gland, and bulbourethral gland
Urethra where semen exits the body
Pattern of sperm cell production:
Germ cells - Spermatogonia - Primary spermatocytes - Secondary spermatocytes - Spermatids - Sperm cells
Sperm cell’s structure
Head, Midpiece, Tail
Contain a nucleus and DNA
Head
Contain mitochondria
Midpiece
Flagellum for movement
Tail
Organs of the female reproductive system:
Ovaries
Uterine tubes
Uterus
Vagina
External genitalia
Mammary glands
The primary sex organ in females
Ovaries
Received the ovulated oocyte and provide a site for fertilization
Uterine tube/Fallopian tube
A hollow organ located between the urinary bladder and the rectum
Uterus
Female organs for copulation; allows menstrual flow and childbirth
Vagina
Pudendum; external female genitalia
Vulva
Organs of milk production; located in the breast
Mammary glands
First episode of the menstrual bleeding
Menarche
Cessation of menstrual cycles
Menopause
The cells from which oocyte develop
Oogonia
Release of an oocyte from a ovary
Ovulation
