TOPIC 16 - FEMALE REPRODUCTIVE SYSTEM Flashcards
What are the functions of female reproductive system?
- Produces the female egg cells
- Transports the eggs to the site of fertilization
- The fertilization of an egg by a sperm, occurs in the fallopian tubes
- After fertilization, provides a place for a baby to develop
- If fertilization does not take place, the system is designed to menstruate
- Produces female sex hormones that maintain the reproductive cycle
What are the parts of female reproductive system?
- A pair of ovaries
- A pair of oviducts
- Uterus
- Cervix
- Vagina
- External genitalia
What is the primary female sex organ?
Ovaries
Oval-shaped glands that are located on either side of the uterus
Ovariese
What are the layers of ovary?
- Germinal epithelium
- T. albuginea
- Stroma
The germinal epithelium ovary is what type of epithelium?
Simple squamous
Stroma of ovary can be divided into?
- Medulla
- Cortex
The medulla of stroma of ovary is constituted as what type of connective tissue ?
Loose connective tissue
Between medulla and cortex, which contains ovarian follicles?
Cortex
Follicular cells has how many layer of cells ?
Single layer
Granulosa cells has how many layers of cells ?
Several layers
It is a large, fluid-filled follicle that will rupture and release a secondary oocyte in process called ovulation.
Mature/Graafian follicle
Remnant of ruptured follicle
Corpus luteum
Corpus luteum produces what hormones ?
- Estrogen
- Progesterone
- Relaxin
Corpus luteum degenerates into ?
Corpus albicans
At birth, about how many oogonia and primary oocytes are present in each ovary?
1 million
Many oogonia degenerate, but a few develop into primary oocytes that enter ____ ____ of meiosis before birth. (Hint: stage of meiosis)
Prophase I
About how many oocytes mature over a woman’s lifetime ?
400
It comprises the primary oocyte and single layer of follicular cells.
Primordial follicle
What separates oocyte from the granulosa cells?
Zona pellucida (layer of glycoprotein)
Ovarian cells outside follicle form two layers. What are these layers?
- Inner vascular layer (theca interna)
- Outer fibrous layer (theca externa)
Between the two layers of ovarian cells outside follicle, which secretes hormones?
Inner vascular layer
Granulosa cells begin to secrete fluid, forms a cavity called ?
Antrum
After puberty, each month, ___ secondary follicle resumes meiosis. Meiosis ___ results in two unequal cells: ____ ____ and ____ ____. It begins to divide again but stops at _____ _____.
1, I, secondary oocyte and polar body, metaphase II
These are cells in the ovarian stroma.
Thecal cells
What are the 3 cells around the oocyte?
- Follicle cells
- Granulosa cells
- Thecal cells
Between the 3 cells around the oocyte, which works together to produce estrogen ?
Thecal & granulosa cells
Type of follicle that has one layer of squamous-like cells surrounding the oocyte
Primordial follicle
In primary follicle, what is the shape of cells and how many layers are present?
Cuboidal granulosa cells, 2 or more layers
Among the follicular stages, which has a fluid-filled space between granulosa cells that coalesces to form a central antrum ?
Secondary follicle
This is the secondary follicle at its most mature stage that bulges from the surface of the ovary.
Graafian follicle
The ruptured follicle after ovulation
Corpus luteum
If fertilization does not occur, the CL will begin to break down about ____ weeks after ovulation.
2
Degeneration of corpus luteum occurs when _____ enter it.
fibroblasts
At ovulation, what are the structures released ?
Secondary oocyte and polar body
Nuclei of ovum and sperm unite to from a ____.
Zygote
In total, meiosis results in how many ovum and polar bodies?
1 ovum, 3 polar bodies
The structure that receives the ovulated oocyte and provide a site for fertilization.
Uterine tubes (fallopian tubes)
Uterine tubes empty into the superolateral region of the uterus via the ?
Isthmus
Uterine tubes expand distally around the ovary forming the ?
Ampulla
The ampulla ends in the funnel-shaped, ciliated _____ containing finger-like projections called _____.
infundibulum, fimbriae
If oocyte is fertilized, it will reach the uterus in about ____ days.
7
Uterus is comparable to the size and shape of what ?
Inverted pear
This structure functions in menstruation, implantation of zygote, development of the fetus and labor.
Uterus
Is uterus part of the pathway for sperm to reach ovum?
Yes
Uterus can be divided into 3 parts. What are these ?
- Fundus
- Body
- Cervix
Part of uterus that is domed upper portion
Fundus
Part of uterus considered as main portion
Body
Part of uterus that is narrow, lower section that extends into vagina
Cervix (**cervical orifice)
What are the layers of the uterus ? (outermost to innermost)
- Perimetrium
- Myometrium
- Endometrium
Perimetrium is considered as part of visceral peritoneum. True or False?
True
This layer of uterus is considered as the bulk of uterus.
Myometrium
In general, how many layers of muscle are present in myometrium?
3 layers
The endometrium layer of uterus comprises small amount of blood vessels. True or False?
False, highly vascular
Sublayer of endometrium that is shed during menstruation.
Stratum functionalis
Sublayer of endometrium that is deeper and is permanent layer, giving rise to another sublayer after each cycle.
Stratum basalis
Endometrium is lined by what epithelium ?
Simple columnar epithelium
Endometrium has no glands. True or False?
False, has endometrial glands.
Phase of endometrium wherein glands and blood vessels are scattered throughout the functional zone with little or no branching; new glands form and endometrium thickens
Proliferative phase
Phase of endometrium wherein glands are enlarged and have branches; preparation of endometrium for implantation.
Secretory phase
This is the cavity of the cervix that communicates with vagina and uterine body.
Cervical canal
Cervical canal communicate with vagina via ?
External os
Cervical canal communicate with uterine body via ?
Internal os
Cervical glands is capable of secreting mucus. True or False?
True
Cervical glands secrete mucus that covers the ____ ____ and blocks sperm entry except during mid-cycle.
external os
Thin-walled tube lying between the bladder and the rectum, extending from the cervix to the exterior of the body.
Vagina
Three coats of wall of vagina
- Fibroelastic adventitia
- Smooth muscle muscularis
- Stratified squamous mucosa
Mucosa near the vaginal orifice forms an incomplete partition called the ?
Hymen
This is the upper end of the vagina surrounding the cervix.
Vaginal fornix
Also known as birth canal
Vagina
Lower pH of vagina indicates that it is more susceptible to infection and more hospitable to sperm. True or False?
False, less susceptible; less hospitable
The external genitalia of female is collectively known as ?
Vulva
This protects other external reproductive organs of female; rounded folds of adipose tissue and skin.
Labia majora
Accessory organs of the female reproductive system
Mammary glands
Mammary glands are modified sweat glands. True or False?
True
Mammary gland lie over what muscle?
Pectoralis major m.
Mammary glands are attached to fascia by what ?
Suspensory ligament of Cooper
Breast size is determined more by glandular tissue than by fat. True or False?
False, other way around.
In mammary glands, lobules are made of milk-secreting cells arranged in ____.
Alveoli
Alveoli are surrounded by _____ cells which contract to move milk out of alveoli.
Myoepithelial
In mammary glands, milk passes from ____ to ____ ____ into ____ ____.
alveoli, secondary tubules, mammary ducts