urinary system 2
DESCRIPTION
TRANSCRIPT
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Homeostasis
The kidney
The gross structure of the urinary system
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Introduction
• The urinary system rids the body of waste materials and controls the volume and composition of body fluids.
• Highly specialized cells in the kidneys are essential to these processes.
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Introduction
• The urinary system is composed of paired kidneys and ureters, the urinary bladder, and the urethra.
• Urine is produced in the kidneys, and then drains through the ureters to the urinary bladder, where the urine is stored.
• Urine is eliminated from the body through the urethra.
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The Urinary System
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The Urinary System
The kidney
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The Urinary System
The kidney
ureter
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The Urinary System
The kidney
ureterbladder
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The Urinary System
The kidney
ureterbladder
urethra
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The Urinary System
The kidney
ureterbladder
urethra
dorsal aorta
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The Urinary System
The kidney
ureterbladder
urethra
dorsal aorta
inferior vena cava
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The Urinary System
The kidney
ureterbladder
urethra
dorsal aorta
inferior vena cava
renal vein
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The Urinary System
The kidney
ureterbladder
urethra
dorsal aorta
inferior vena cavarenal vein
with renal
artery behind
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The Urinary System
The kidney
ureterbladder
urethra
dorsal aorta
inferior vena cavarenal vein
with renal
artery behind
adrenal gland
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Kidney function
•Each bean-shaped kidney is embedded in a fatty adipose capsule.• The kidneys are retroperitoneal, lying against the dorsal body wall in the upper abdomen.
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Kidney function
• An adrenal gland, which is part of the endocrine system, lies on top of each kidney.• Several structures enter or exit the concave surface of the kidney at the renal hilus, including theureter and the renal vein, which drains into the inferior vena cava.
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The kidney
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The kidney
ureter
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The kidney
ureter
renal pelvis
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The kidney
ureter
renal pelvis
renal cortex
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The kidney
ureter
renal pelvis
renal cortex
renal medulla
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The kidney
ureter
renal pelvis
renal cortex
renal medulla
pyramids
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Kidney blood supply
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• When the renal vein is removed and the kidney is shown in frontal section, you can see the deeperrenal artery and its connection to the abdominal aorta.
Kidney blood supply
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• Together, these vessels provide the kidneys with a rich blood supply under high pressure that allowsthem to continuously filter and cleanse the blood.
Kidney blood supply