Urinary System

Question 1

Function of the Kidneys

Answer 1

• Removal of nitrogenous waste and over abundant substances from blood
• Form and excretes urine
• Regulation of water, electrolyte and acid/base balance of the body
• Secrete hormones that stimulate the production of blood cells and regulate blood pressure

Question 2

Kidney Structure

Answer 2

Bean shaped structure that function as a filter for blood

Question 3

Kidney location

Answer 3

Lie on either side of vertebral column on the posterior wall of the abdominal cavity, retroperitoneal

Question 4

Renal Hilum Structure

Answer 4

Hollow indentation on the medial side of the kidney

Question 5

Renal Hilum Function

Answer 5

Opens to blood vessels, nerves, lymphatic vessels, and the ureters

Question 6

Renal Pelvis

Answer 6

Occupies the renal sinus (cavity) inside the renal hilum (hilus); gives rise to kidney tubules

Question 7

Regions of the kidney

Answer 7

Renal Medulla

Renal Cortex

Question 8

Renal Medulla

Answer 8

Inner portion of kidneys

Question 9

Renal Cortex

Answer 9

Outer portion (contains most of the nephrons)

Question 10

Renal Arteries

Answer 10

Branch form abdominal Aorta, supply blood to kidneys

Question 11

Afferent arterioles

Answer 11

(to the organ)

Smallest of the renal artery that supply blood to nephrons

Question 12

Efferent arterioles

Answer 12

(Away form the organ)

Smallest of the renal artery branches that collects filtered blood from the nephron

Question 13

Renal Veins

Answer 13

Join with Inferior Vena Cava and take filtered/deoxygenated blood back to the heart

Question 14

Nephron

Answer 14

Basic functional unit of kidney’s (filter blood/create urine)
1 million per kidney