Histology of UG system Flashcards

1
Q

Two layers of capsule of kidney

A

Outer layer of fibroblasts and collagen fibres

Inner layer of myofibroblasts

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2
Q

What does the medulla contain

A

Straight tubules, collecting ducts and the vasa recta

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3
Q

What are medullary rays

A

Vertical striations that originate in the medulla
Contain staright tubules and collecting ducts
Each nephron and it’s connecting tubule form the uriniferous tubule

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4
Q

Two layers of Bowman’s capsule

A

Visceral and Parietal

Parietal consists of simple squamous epithelium

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5
Q

How does the proximal tubules appear

A

Intensely eosinophillic
Cuboidal epithelium
brush border microvilli

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6
Q

How do you identify distal tubules on a slide

A
Simple cuboidal epithelium
Few microvilli (appear more straighter)
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7
Q

What epithelium lines collecting tubules

A

Simple cuboidal epithelium

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8
Q

Epithelium of ureters

A

Transional epithelium

Cuboidal when relaxed and squamous when strected

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9
Q

Epithelium of urethra

A

Epithelium varies from stratified or pseudostratified columnar to stratified squamous

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10
Q

Epithelium of ovary

A

Germinal epithelium

Surface of the ovary lined by single layer of cuboidal cells; some look almost squamous in certain areas –

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11
Q

Primordial follicle epithelium

A

Single layer of squamous cells

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12
Q

Epithelium of primary follicle

A

Cuboidal initially

Later develops into stratified epithelium

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13
Q

Two layers of theca folliculi

A

Theca interna - layers of cuboidal secretory cells

Theca externa - connective tissue cells

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14
Q

Characteristics of secondary follicle

A

Fluid containing antrum that is surrounded by cells that are 6-12 layers thick

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15
Q

What is the single layer of cells that surround mature oocyte

A

Corona radiata

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16
Q

3 layers of uterine tubes

A

Serosa – outermost layer composed of mesothelium and thin layer of connective tissue
Muscularis – inner, thick circular layer and outer, thinner longitudinal layer
Mucosa – inner lining of the uterine tube; composed of simple columnar epithelium

17
Q

What is the epithelium of the portion of cervix that projects into vagina (ectocervix)

A

Stratified squamous epithelium

18
Q

EPithelium of cervical canal (endocervix)

A

simple columnar epithelium

19
Q

Layers of vaginal wall

A

Inner mucosal layer – lined with stratified squamous epithelium
Mid muscular layer – outer longitudinal and inner circular layers
Outer adventitial layer – inner dense CT containing elastic fibers and outer loose CT containing blood and lymphatic vessels and nerves

20
Q

Components f testis

A

Tunica albuginea – thick capsule of dense CT surrounding each testis
Mediastinum testis – thickening of posterior part of tunica albuginea
Seminiferous tubules – series of long tubules in which sperm are produced and mature
Interstitial connective tissue – loose CT surrounding seminiferous tubules containing interstitial cells of Leydig

21
Q

Epithelum of seminiferous tubules

A

Complex stratified epithelium composed of Sertoli and spermatogenic cells

22
Q

Where are leydig cells located

A

In between SF tubules

23
Q

What are intratesticular ducts lined with

A

Lined by simple cuboidal epithelium

24
Q

What are efferent ductules

A

Lined with pseudostratified columnar epithelium

25
Q

What is the epididymis made up of

A

Pseudostratified epithelium that consists of principal cells and basal cells

26
Q

What is the vas deferens lined with

A

Pseudostratified columnar epithelium

27
Q

3 layers of prostate gland

A

Inner mucosal layer
Intermediate submucosal layer
Peripheral layer containing main prostatic glands

28
Q

What zones does the adult prostatic parenchyma consist of

A

Central zone – cells have prominent and slightly basophilic cytoplasm and larger nuclei
Peripheral zone – 70% of glandular tissue of the prostate
Transitional zone – contains mucosal glands
Periurethral zone – contains mucosal and submucosal glands