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The Excretory and Reproductive Systems

The Excretory and Reproductive Systems. Pick up your fill-in-the-blank notes by the door to take notes on these systems. The Excretory System – An Overview. What is excretion? Removal of metabolic wastes Wastes include : CO 2 , H 2 O, salts, urea and uric acid

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The Excretory and Reproductive Systems

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  1. The Excretory and Reproductive Systems Pick up your fill-in-the-blank notes by the door to take notes on these systems.

  2. The Excretory System – An Overview • What is excretion? • Removal of metabolic wastes • Wastes include: CO2, H2O, salts, urea and uric acid • All wastes travel through the blood • Which organs are involved? • Lungs - removal of excess CO2 • Liver - produces urea and uric acid as a byproduct of the breakdown of proteins • Skin - removal of excess water, salt, urea and uric acid • Urinary System - kidneys filter the blood to form urine, which is excess water, salt, urea and uric acid c

  3. Urinary System • What is Urine? • The first nitrogenous waste to be formed from the breakdown of protein is ammonia or NH3 • It is a highly toxic chemical that is quickly converted by the liver to urea and uric acid. • These are less toxic than ammonia and are transported in the blood to the kidneys for excretion in urine. • Urine consists of excess water, excess salt, urea and uric acid. c c

  4. The Urinary System Left Adrenal Gland Right Adrenal Gland Aorta Inferior Vena Cava Left Kidney Right Kidney Renal Cortex Renal Veins Renal Arteries Renal Medulla Renal Pelvis Ureters Urinary Bladder 1. Adrenal Glands are part of the Endocrine system, and produce the hormones Cortisol and Adrenaline. 2. Kidneys - 2 kidneys composed of millions of nephrons constantly filter about 170 to 200 liters of blood to produce about 1.5 to 2 liters of urine daily. Urethra

  5. In the Fetal Pig

  6. The Reproductive Systems

  7. Female Urogenital Structures

  8. Female Reproductive System • Ovaries • Produce eggs • Fallopian tubes or oviducts • Egg travels through to uterus • Fertilization occurs here • Uterus • Implantation of fertilized egg/zygote takes place • Fetal Development occurs here • Cervix • Entrance to uterus for sperm • Vagina • Muscular tube allowing entrance to female reproductive tract

  9. Male Urogenital Structures

  10. Male Reproductive System • Testis (pl: Testes) • Sperm formed here • Epididymis • Transfers sperm from testis to vas deferens • Vas Deferens or Ductus Deferens • Long tubes that sperm pass through on way to urethra and ejaculatory duct • Penis • Final muscular gland of male reproductive system • Shared with urinary system

  11. Male Reproductive System • Penis • Testis (still in sac) • Epididymis

  12. Male Reproductive System

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