Urinary System

kidney, ureters, urinary bladder, urethra

urinary system organs

Kidney, excretory

1

ureter, urine from kidney to urinary bladder

2

urinary bladder, temporary urine storage

3

urethra, urine out of body

4

renal cortex

1

renal medulla

2

renal pyramid

3

renal column

4

ureter

5

renal pelvis

6

major calyx

7

minor calyx

8

papilla of pyramid

9

minor calyces, major calyces, renal pelvis, ureters, bladder, urethra, exit

urine pathway - urine formed by nephrons drains from CD into

aorta, renal artery, afferent arteriole, glomerulus (capillaries), efferent arteriole - peritubular capillaries vasa recta, renal vein, inferior vena cava

blood flow through kidney

glomerulus, glomerular capsule

Nephron - renal corpuscle

distal convoluted tubule, proximal convoluted tubule, nephron loop (descending and ascending limb)

Nephron - renal tubule

nephron

structural and functional unit of kidney

glomerulus

D

glomerular capsule

C

proximal convoluted tubule, many microvilli

E

distal convoluted tubule, fewer micovilli

H

loop descending limb

F

loop ascending limb

G

juxtamedullary, cortical

Nephron types - cortex and medulla

collecting duct

I

filtration

renal corpuscle

peritubular capillaries

B

efferent arteriole

C

afferent arteriole

D

nephron loop

H

vasa recta

blood to a juxtamedullary nephron

efferent arteriole

1

afferent arteriole

2

glomerular capillary covered by podocytes

3

glomerular capsule

4

proximal convoluted tubule

5

podocytes

6

filtration slits

7

foot processes of podocyte

8

glomerular capillary endothelium (podocyte and basement membrane removed)

9

fenestrations (pores)

10

foot processes of podocyte

1

filtration slit

2

basement membrane

3

Capillary endothelium

4

fenestration

5

capillary

6

lumen

3

transitional epithelium

2

muscularis (smooth muscle)

5

peritoneum

1

ureter

2

rugae

3

detrusor muscle

4

ureteral openings

5

trigone

6

internal urethral sphincter, smooth muscle

7

urethra

8

external urethral sphincter, skeletal muscle

9

urogenital diaphragm

10

external urethral orifice

11

ureteral openings

1

trigone

2

internal urethral sphincter

3

prostate gland

4

external urethral sphincter

5

urogenital diaphragm

6

prostatic urethra

7

membranous urethra

8

spongy urethra

9

external urethral orifice

10

glomerular filtration, tubular reabsorption (kidney to blood), tubular secretion (blood to kidney)

urine formation, 3 processes