Genito-Urinary System Study Guide PDF
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Uploaded by EffectiveRockCrystal2075
King Salman International University
Dr. Amany Abdelfattah
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Summary
This document provides a study guide on the genito-urinary system, dividing it into the urinary and genital systems. It details the structure and function of the kidney, encompassing the stroma, parenchyma, and nephron components. The document also covers the male and female genital systems, including their organs and functions.
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DR. Amany Abdelfattah Genito-urinary system It is formed of 2 systems: 1. Urinary system 2. Genital system Urinary system It is formed of: 1. Kidney 2. Ureter 3. Urinary bladder 4. Urethra Kidney The...
DR. Amany Abdelfattah Genito-urinary system It is formed of 2 systems: 1. Urinary system 2. Genital system Urinary system It is formed of: 1. Kidney 2. Ureter 3. Urinary bladder 4. Urethra Kidney The organ responsible for blood filtration and urine formation. Structure: I. Stroma: capsule. II. Parenchyma: Nephron → Formed of Renal corpuscle, Proximal convoluted tubule (PCT), Loop of Henle, Distal convoluted tubule (DCT). 1. Renal corpuscle: formed of: ✓ Bowman’s capsule → cup-shaped capsule lined by simple squamous epithelium. ✓ Glomerulus → tuft of capillaries. 2. PCT & DCT: lined by simple cubical epithelium 3. Loop of Henle: ✓ Thick part lined by simple cubical epithelium. ✓ Thin part lined by simple squamous epithelium. DR. Amany Abdelfattah Male genital system Formed of: 1. Primary sex organ: Testis. 2. Accessory sex organs: Excretory tubules of the testis. Glands: Seminal vesicle, prostate. Penis. Prostate gland ❖ Male accessory gland that is pierced by the urethra. ❖ Structure: stroma and parenchyma 1. Stroma: capsule, trabeculae. 2. Parenchyma: formed of prostatic acini: a. Mucosal acini: the smallest type, lie in periurethral tissue. b. Submucosal acini: larger and outer to mucosal acini. c. Main acini: the largest and the most peripheral acini. ❖ Function: produce a secretion that nourishes the sperm DR. Amany Abdelfattah Female genital system Formed of: 1. Primary sex organ: ovary. 2. Accessory sex organs: - Fallopian tubes. - Uterus - Vagina - External genitalia. The uterus ❖ Formed of 3 parts 1) Fundus. 2) Body. 3) Cervix. The wall of uterus is formed of 3 layers: A. Endometrium. Histologically: 2 layers: ✓ Epithelium → Simple columnar ciliated epithelium. ✓ Lamina propria → contain endometrial glands Functionally: two zones: ✓ Superficial functioning zone: shed off during menstruation. ✓ Deep (basal) zones: regenerates endometrium. B. Myometrium. - 3 layers of smooth muscles (inner, middle & outer layers). - The middle layer smooth muscle fibers give “8-shaped figures”. C. Perimetrium (serosa) → Loose C.T.
