Urinary system 1.1 Flashcards
- Receive 25% of CO
Kidneys
- Ureters
- Bladder
- Urethra
Urinary tract
Receive urine from kidneys
Ureters
receive and store urine
Bladder
Conduct urine/semen from bladder to outside body
Urethra
- Regulate blood ions
- Regulate blood ph
- Regulate blood volume
- regulate blood pressure
- Regulate blood glucose
- Maintain blood osmolarity
- Produce hormones
- Excrete waste
Functions of the urinary system
Located in retroperitoneal position - b/w posterior body wall and parietal peritoneum
Kidneys
Located on either side of verterbral column w/ left slightly higher than right
Kidneys. Right lower due to liver
Kidney connected to bladder via
Ureters
- Renal capsule
- Perineal fat
- Renal fascia
Layers of kidney
Kidney layers
- Deepest layer
- Layer of collagen fibers
Renal (fibrous) capsule
Kidney layers
Thick layer of adipose tissue
Perineal fat
Kidney layers
- Outer layer
- Anchors kidney to surrounding structures
Renal fascia
Kidney Anatomy
- Medial Indentation
- Entry point for artery, nerves, veins, uterer
Hilum
Kidney Anatomy
- Lined with fibrous capsule
- Internal cavity of kidney, filled with fat
Renal Sinus
Internal Anatomy of Kidney
Divided into outer and inner region
Renal Cortex - Outer
Renal Medulla - Inner
- Lighter red in color
- Where renal corpuscles found
Renal Cortex
Where blood is filtered and urine initially formed
Renal corpuscles
Extensions of the cortex into medulla
Renal columns
- Darker brown in color
- Contains renal pyramid
- Contains nephron loop, papillary ducts, collecting ducts
Renal medulla
- Each kidney contains 6-18
- Contains pyramid, overlying cortex and adjacent renal columns
Kidney/renal lobe