Wray- Urinary

Question 1

Functions of the Urinary System (6)

Answer 1

1. Water Balance
2. Elimination of nitrogenous waste
3. Regulation of ions
4. Regulation of pH
5. Regulate blood volume
6. Production of enzymes (renin)

Question 2

Ions/Wastes (4)

Answer 2

1. Na+, K+, Cl-, Bicarbonate (HCO3-)

Question 3

Components of Urinary System (4)

Answer 3

1. Kidneys
2. Ureter
3. Urinary Bladder
4. Urethra

Question 4

Components of kidneys (8)

Answer 4

1. Nephron
2. Renal cortex (outer region of kidney)
3. Renal pyramids ( inner region of kidney
4. Renal columns (space in-between pyramids)
5. Minor and major cortex (calyces)
6. Renal pelvis
7. Hilium

Question 5

Pathway from kidney –> Ureter (3)

Answer 5

1. Minor calyx: Structure that collects urine from nephrons
   - ->
2. Major calyx: Structure that collects urine from multiple calyces
   - ->
3. Renal Pelvis: Region that collects urine from all major calyces

Question 6

Nephron: Structure

Answer 6

1. Glomerulus

2. Renal tubule

Question 7

Blood vessels (7)

Answer 7

Renal artery -->
Afferent arteriole -->
glomerulus -->
efferent arteriole-->
peritubular capillaries -->
peritubular vein -->
Renal vein

Question 8

Active Transport

Answer 8

Move one molecule with concentration gradient (Na+) and with that bring a molecule (glucose) into the cell against its concentration gradient

Question 9

Concentration of ions in plasma, ECF & ICF

Answer 9

• Plasma and ICF = same

Question 10

Concentration of ions in plasma:

Answer 10

High Na
High Ca
Low K

Question 11

____________ in hypothalamus sense a increase in solute __________

Answer 11

Osmoreceptors; concentration

You then feel thirsty

Question 12

Most effective buffer in the blood is _________

Answer 12

Bicarbonate (HC3O –> H2CO3)

Question 13

Buffer System Process in the Resp System: acidosis

Answer 13

(H+) + (HCO3-)

• -> H2CO3
• -> H20 + CO2 (exhaled/hyperventilation)