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Understanding the Excretory System: Functions and Components

This overview by Logan Snell explores the excretory system and its vital functions. It highlights key structures such as the inferior vena cava, which receives blood from the lower limbs and abdomen to the heart, and the abdominal aorta, a major blood vessel. The kidneys maintain essential bodily functions like salt and water balance, blood pressure, and volume. The ureters transport waste to the urinary bladder, which stores liquid waste until elimination. Additionally, the role of the urethra and its sphincter in waste expulsion is examined, underscoring the complexity of this essential system.

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Understanding the Excretory System: Functions and Components

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  1. The Excretory System By: Logan Snell

  2. Infrior Vena Cava function- receives blood from lower limbs and abdomen organs and empties into the posterior part of the right atrium of the heart

  3. Abdominal Aorta Function- A branch of the descending aorta

  4. Right and Left Kidney Function- helps maintain the salt content, water content, core temperature, blood pressure, and blood volume

  5. Ureter Function- Cares waste products from the kidney to the urinary bladder

  6. Urinary bladder Function- storage of liquid waste( the bladder looks like a funnel)

  7. Urethraand the urethral sphincter Urethral sphincter- a spherical muscle that constricts the urethra(the rectum- solid food waste that travels through the rectum) Urethra function- carry’s liquid waste out of the body(sweat glands remove excess water and salt from the body.)

  8. Renal artery/Renal vein/Hilum Function- blood flow for the kidney Function- helps blood leaves from the kidney Function- connects the renal vein to the kidney

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