Understanding Male Rat Blood Supply Anatomy

Jan 6, 2025

Male Rat Dissection: Blood Supply PART 1

Aims

  • Recognize the main types of blood vessels in mammals.

Blood Vessels Overview

  • Vena Cavae: Channels deoxygenated blood back to the heart.
    • Inferior Vena Cava: Brings blood from the abdomen and lower limbs.
    • Superior Vena Cava: Returns blood from the head, neck, and upper limbs.
  • Aorta: Delivers oxygenated blood from the heart to the body.
    • Aortic Arch: Name given as the aorta curves after ascending from the heart.
    • Abdominal Aorta: As the aorta descends, it becomes the abdominal aorta.
      • Renal Arteries: Branches of the abdominal aorta delivering blood to the kidneys.

Additional Anatomical Notes

  • Testes: Primary reproductive organs in male rats, encapsulated by the scrotal sac.
    • Functions to produce testosterone and sperm.

Kidney Anatomy

  • Positioned asymmetrically; termed retroperitoneal as they lie behind the peritoneum.
    • Peritoneum: Connective tissue protecting and anchoring organs.
    • Omentum: Folds of peritoneum; the greater omentum protects organs from infection.

Blood Supply to Lower Limbs

  • Femoral Arteries: Branch from the aorta.
    • Accompanied by the femoral nerve and vein.
    • Femoral Vein: Returns deoxygenated blood from the lower limb, employing valves to prevent backflow.

Stomach Examination

  • Connective tissue structures: Oesophagus (delivers food) and Duodenum (transports food from stomach to intestines).
  • Human Stomach Regions: Cardia, Fundus, Body, Pylorus.
    • Sphincters at either end help in closing the stomach for digestion.
  • Rat Stomach: Comprises Cardiac, Body, Pylorus regions.
    • Muscular sphincters present as in humans.