Podcast
Questions and Answers
What is the primary function of the vagina within the female reproductive system?
What is the primary function of the vagina within the female reproductive system?
- To serve as the organ of copulation and a pathway for childbirth. (correct)
- To nourish the developing embryo during pregnancy.
- To produce eggs for fertilization.
- To regulate hormone production.
Which of the following structures connects the ovaries to the uterus?
Which of the following structures connects the ovaries to the uterus?
- Vagina
- Cervix
- Fallopian tube (Trompa de Falópio) (correct)
- Endometrium
Which layer of cells is characteristic of the endocervical epithelium?
Which layer of cells is characteristic of the endocervical epithelium?
- Stratified layers of keratinized cells.
- A basal layer with superficial squamous cells.
- A single layer of tall columnar cells. (correct)
- Multiple layers of squamous cells.
The squamous epithelium of the vagina is composed of multiple layers of cells. Which type of tissue is it?
The squamous epithelium of the vagina is composed of multiple layers of cells. Which type of tissue is it?
What happens to the cervical Squamo-columnar junction (JEC) during a woman's reproductive years (idade fértil)?
What happens to the cervical Squamo-columnar junction (JEC) during a woman's reproductive years (idade fértil)?
Which of the following best describes the key feature observed in superficial cells of the non-keratinized squamous epithelium?
Which of the following best describes the key feature observed in superficial cells of the non-keratinized squamous epithelium?
Which type of cells are characteristically found in the basal layer of non-keratinized squamous epithelium?
Which type of cells are characteristically found in the basal layer of non-keratinized squamous epithelium?
Which tissue type is found lining the vagina and ectocervix?
Which tissue type is found lining the vagina and ectocervix?
The transformation zone in the female reproductive system is characterized by:
The transformation zone in the female reproductive system is characterized by:
What is the role of reserve cells in the transformation zone of the cervix?
What is the role of reserve cells in the transformation zone of the cervix?
What type of tissue is the Squamo-columnar junction (JEC)?
What type of tissue is the Squamo-columnar junction (JEC)?
Which of the following best describes the epithelial lining of the uterus?
Which of the following best describes the epithelial lining of the uterus?
What is the primary characteristic of cells in the intermediate layer of non-keratinized squamous epithelium?
What is the primary characteristic of cells in the intermediate layer of non-keratinized squamous epithelium?
What is the hallmark feature of keratinized squamous epithelium?
What is the hallmark feature of keratinized squamous epithelium?
Which of the following tissue types provides the lining for the inner cavities of the uterus?
Which of the following tissue types provides the lining for the inner cavities of the uterus?
Which area does the stratified squamous keratinized epithelium line?
Which area does the stratified squamous keratinized epithelium line?
What happens to the squamous epithelium in menopausal women without hormone replacement therapy?
What happens to the squamous epithelium in menopausal women without hormone replacement therapy?
What is the main histological feature of the endocervical epithelium?
What is the main histological feature of the endocervical epithelium?
What distinguishes non-keratinized stratified squamous epithelium from its keratinized counterpart?
What distinguishes non-keratinized stratified squamous epithelium from its keratinized counterpart?
What cells stain blue or green with a Papanicolaou stain?
What cells stain blue or green with a Papanicolaou stain?
What color do superficial cells stain with a Papanicolaou stain?
What color do superficial cells stain with a Papanicolaou stain?
What cellular features can be observed through cervical smears?
What cellular features can be observed through cervical smears?
How does the appearance of cells change as they mature?
How does the appearance of cells change as they mature?
How does the cervical Squamo-columnar junction(JEC) change in post-menopausal women?
How does the cervical Squamo-columnar junction(JEC) change in post-menopausal women?
Which part of the uterus sheds during menstruation?
Which part of the uterus sheds during menstruation?
What is the role of Eleidin granules?
What is the role of Eleidin granules?
Which cell population proliferates and undergoes active cellular division?
Which cell population proliferates and undergoes active cellular division?
Which structure has a crucial role to provide support and nutrition to epithelial tissue?
Which structure has a crucial role to provide support and nutrition to epithelial tissue?
What is the primary difference between keratinized and non-keratinized squamous epithelium?
What is the primary difference between keratinized and non-keratinized squamous epithelium?
Flashcards
Vagina
Vagina
Female copulatory organ; entry and exit of the baby during normal birth.
Uterus (Útero)
Uterus (Útero)
Organ in the female reproductive system where the fetus develops.
Fallopian Tubes
Fallopian Tubes
Tubes connecting the ovaries to the uterus, where fertilization often occurs.
Ovaries (Ovano)
Ovaries (Ovano)
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Endometrium
Endometrium
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Cervix (Cérvice)
Cervix (Cérvice)
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Ectocervix
Ectocervix
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Squamocolumnar Junction (JEC)
Squamocolumnar Junction (JEC)
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Endocervical Epithelium
Endocervical Epithelium
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Squamous Keratinized Epithelium
Squamous Keratinized Epithelium
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Squamous Non-Keratinized Epithelium
Squamous Non-Keratinized Epithelium
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Study Notes
- The female reproductive system includes the vagina, uterus, fallopian tubes, and ovaries
- The genitourinary system contains the vagina, bladder, ureters, kidneys, the inferior vena cava and the aorta
- The vagina is the female copulatory organ and serves as the entrance and exit for a baby during normal birth
Uterus
- The uterus is a component of the female reproductive system
- The uterus is a composed of 3 components: Squamous, Glandular cervical and Glandular endometrial
- Structures associated with the uterus include the uterine tube, canal endocervical, fimbra, ovary, endometrium, cervix and vagina
Tissue Types
- Variety of tissues found in the female genital tract include epithelial and support tissues
- Tissue types include:
- Squamous stratified keratinized epithelium
- Squamous stratified non-keratinized epithelium
- Endocervical epithelium
Squamous Keratinized Epithelium
- Squamous keratinized epithelium is present in the skin and large lips
- It consists of a layer of keratinized and anucleated cells and contains eleidin granules
- Squamous keratinized epithelium can be identified via it's keratinized superficial layer lacking nuclei
- Pavementous cells can be seen at the most external layers
Squamous Non-keratinized Epithelium
- Squamous non-keratinized epithelium coats the small lips (vulva), vagina, and uterine colon
- It has three zones:
- Basal that has one or two layers of basal cells (esteric), large core and little cytoplasm, high mitosis tx, fabric renewal every 4 days
- Intermediate that contains several layers of cells, volume progressively larger nuclei spherical and chromatin granular, basofilico cytoplasm (glycogen); junctions - desmossomos (desquamation grouped)
- Superficial that is 3-6 layers of cells. larger, final phase of maturation of squamous epithelium; pycnotic nuclei surround by clear zones (halos); junctions cease to exist (isolated desquamation); without complete queratinization.
- Intermediate cells stain habitually in cyanophilic (blue or green)
Endocervical Epithelium
- Endocervical epithelium consists of a single layer of high columnar cells
- Cell size reasonably varies during the menstrual cycle
- The cells are cylindrical with an elongated nucleus, basal, resting on the supporting tissue or connective stroma
Squamocolumnar Junction (SCJ)
- The squamocolumnar junction (SCJ) is the junction between the squamous epithelium and the columnar epithelium in the cervix
- Reserve cells are responsible for squamous metaplasia and are small cells located at the base of the endocervical epithelium
- SCJ location alters with age
Histology
- HE histology at 400x magnification reveals non-keratinized stratified squamous epithelium
- Observe the basal, parabasal, intermediate, and superficial layers
- Cells display more abundant cytoplasm as they mature
- Cell maturation results activity estrogenic
- Epithelium is thin with only basal and parabasal layers in postmenopausal women without hormone replacement
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