Urinary System Models
Intro to the Urinary System – pg. 374 in lab book
Basic Functions
• Kidneys filter blood
• Filtered blood is sent
through renal tubules
called the NEPHRON
• The nephron adjusts the
composition of the filtered
blood and turns it into
urine
• The URETERS take the
urine fro the kidneys to
the URINARY BLADDER
• The urine is expelled to
the exterior through the
URETHRA
The Kidney – pg. 376 in lab book
Nephron – the functional unit of
the kidney made up of renal
tubules that produce urine.
The Kidney Plaque
Kidney
Renal Columns
Renal Pyramids
Renal Capsule
Kidney
Major Calyx
Minor Calyx
Renal Pelvis
Ureter
Kidney
Renal Artery
Renal Vein
Kidney Blood Supply
Blood Supply INTO the Kidney
3. Interlobar Artery
2. Segmental Artery
1. Renal Artery
4. Arcuate
Artery
5. Cortical
Radiate
Artery
or
Interlobular
Artery
Blood Supply Through the Nephron
6. Afferent
Arteriole
5. Cortical
Radiatre
Artery or
Interlobular
Artery
8. Efferent
Arteriole
10. Cortical
Radiate Vein
or
Interlobular
Vein
7. Glomerulus
11. Arcuate
Vein
9. Peritubular
Capillaries
4. Arcuate
Artery
Kidney Blood Supply
Blood Supply OUT OF the Kidney
13. Renal
Vein
12. Interlobar Vein
11. Arcuate Vein
10. Cortical
Radiate Vein
or
Interlobular
Vein
Arterial Blood Supply INTO the Kidney
Renal Artery
Segmental Artery
Interlobar Artery
Arcuate Artery
Cortical Radiate Artery
(Interlobular artery)
Afferent Arteriole
Glomerulus
Efferent Arteriole
NEPHRON (not shown)
Venous Blood Supply OUT OF the Kidney
Renal Vein
Interlobar Vein
Arcuate Vein
Cortical Radiate Vein
(Interlobular vein)
Peritubular capillaries
Efferent Arteriole
NEPHRON (not shown)
As the blood is filtered through the glomerulus and peritubular capillaries,
the Nephron Tubules produce urine!
Efferent Arteriole
Afferent Arteriole
Nephron
Distal Convoluted
Tubule
Glomerular (Bowman’s)
Capsule
Proximal Convoluted
Tubule
Descending Limb
of Loop of Henle
Ascending Limb of
Loop of Henle
Collecting
Duct
Renal Corpuscle
Renal Corpuscle
Afferent arteriole
Glomerular (Bowman’s)
Capsule
Glomerulus
Proximal Convoluted
Tubule
Efferent arteriole
Urinary Tract
Model
Left Adrenal
Gland
Left Kidney
Left Ureter
Urinary
Bladder
Right Adrenal
Gland
Right Kidney
Right Ureter
Urinary Tract
Model
Left Renal
Artery
Left Renal
Vein
Abdominal
Aorta
Right Renal
Artery
Right Renal
Vein
Inferior Vena
Cava
Urinary Tract
Model
Left Common
Iliac Artery
Left Ductus
(vas) Deferens
Left Seminal
Vesicle
Prostate
Gland
Right Common
Iliac Vein
Right Ductus
(vas) Deferens
Right Seminal
Vesicle
Urinary
Bladder
Left Ureter
Right Ureter
Left Seminal
Vesicle
Right
Seminal
Vesicle
Prostate
Gland
Urethra
Practice!
Renal
Pyramid
Major Calyx
Renal Artery
Minor Calyx
Ureter
Renal Capsule
A little practice with Renal Blood Vessels
Renal Artery
Interlobar Vein
Arcuate Artery
Arcuate Vein
Interlobular Artery
Nephron
Practice!
Proximal Convoluted
Tubule
Distal Convoluted Tubule
Glomerular (Bowman’s)
Capsule
Ascending Limb of
Loop of Henle
Descending
Limb of
Loop of
Henle
Collecting
Duct
PRACTICE!
Afferent arteriole
Efferent arteriole
Glomerulus
Glomerular
(Bowman’s)
Capsule
Proximal Convoluted
Tubule
Practice Time!
Left Adrenal
Gland
Left Kidney
Abdominal
Aorta
Urinary
Bladder
Left Ductus
(vas) deferens
Prostate
Gland
Right Renal
Artery
Inferior Vena
Cava
Right Ureter
Right
Seminal
Vesicle
Practice Time!
Left Ureter
Left Seminal
Vesicle
Prostate
Gland
Urethra
Urinary
Bladder
Practice Slides for Labeling