Urinary Bladder and Urethra | Western Sydney University - Edubirdie

University:
Western Sydney University
Course:
MEDI 2003 | Clinical Sciences 2
Academic year:

2024
Views:

226

Pages:

5
Author:

Mariam A. A.

Urinary Bladder and Urethra Key information • The empty urinary bladder is found entirely within the pelvic cavity. It is a highly distensible reservoir for urine. • When empty, it resembles a flattened pyramid with a triangular base, defined by the entry of the two ureters (superior and lateral) and the urethral opening (medial and inferior). • Its apex is towards the pubic symphysis. The bladder walls consist of mucosal, muscular and adventitial layers. Structural features of the urinary bladder • • • • • Apex Base Neck Detrusor muscle - The wall of the bladder is comprised of smooth muscle fibres oriented in multiple different directions. - This interwoven orientation provides the bladder with the ability to stretch in response to the presence of urine Trigone opening - Two of the openings are from the ureters and form the base of the trigone. - Small flaps of mucosa cover these openings and act as valves that allow urine to enter the bladder but prevent it from backing up from the bladder into the ureters. - The third opening, at the apex of the trigone, is the opening into the urethra. Blood Supply • Superior and inferior vesicular arteries and veins (branches of the internal iliac) Lymphatic drainage pathways • Internal and external iliac nodes Innervation • • Parasympathetic: pelvic splanchnic Sympathetic: - L1-L2 - Superior hypogastric plexus Urethra Key Information The urethra is a sexually dimorphic structure. In males it is ~20cm in length and in females it is ~4 cm in length. Identify the regions of the male urethra in relation to their surrounding organs/structures Blood Supply • • • Vesical vessels Rectal vessels Pudendal vessels Innervation • • Pudendal nerves, prostatic plexus Pelvic splanchnic plexus, inferior hypogastric plexus

Related Documents

Urinary Bladder and Urethra

Urinary Bladder and Urethra - Page 1

Urinary Bladder and Urethra - Page 2

Urinary Bladder and Urethra - Page 3

Urinary Bladder and Urethra - Page 4

Urinary Bladder and Urethra - Page 5

of 5

Recommended Documents

Genetics Part 2

Genetics Part 2

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Genetics Part 3

Genetics Part 3

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Lipid Metabolism Study Resources

Lipid Metabolism Study Resources

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Amazing Lecture about Chronic Kidney Disease

Amazing Lecture about Chronic Kidney Disease

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Bone Remodeling Study Notes

Bone Remodeling Study Notes

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Muscle Relaxants Reference Materials

Muscle Relaxants Reference Materials

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Beta Blockers Academic Notes

Beta Blockers Academic Notes

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Posterior Compartment of the Forearm Muscles

Posterior Compartment of the Forearm Muscles

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Bowel Obstruction Clinical Features and Complications

Bowel Obstruction Clinical Features and Complications

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Thermoregulation Learning objectives

Thermoregulation Learning objectives

Western Sydney University MEDI 2003 | Clinical Sciences 2

Study Guide

Bone Remodelling Tutorial Materials

Bone Remodelling Tutorial Materials

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

Anxiety Medicine Cheat Sheet

Anxiety Medicine Cheat Sheet

Western Sydney University MEDI 2003 | Clinical Sciences 2

Cheat Sheet

New Documents from this Course

Pathophysiology of Type 1 Diabetes

Pathophysiology of Type 1 Diabetes

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Protien Metabolism Learning Materials

Protien Metabolism Learning Materials

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Obesity Academic Notes

Obesity Academic Notes

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Metabolic Response to Starvation

Metabolic Response to Starvation

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Macronutrients Coursework Materials

Macronutrients Coursework Materials

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Kerbs and Oxidative Phospohorylation

Kerbs and Oxidative Phospohorylation

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Intro to Nutrition and Metabolism

Intro to Nutrition and Metabolism

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Hormones and Metabolism

Hormones and Metabolism

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Genes and the Environment in Diabetes

Genes and the Environment in Diabetes

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Stem Cells Study Resources

Stem Cells Study Resources

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Genetics Part 1

Genetics Part 1

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note

Oxyhemoglobin Educational Materials

Oxyhemoglobin Educational Materials

Western Sydney University MEDI 2003 | Clinical Sciences 2

Lecture Note