Excretion

Question 1

Kidney functions.

Answer 1

To remove waste products and excess fluid from the body.

Pelvis - Medulla - Cortex

Question 2

Nephron functions.

Answer 2

The nephron is the tiny filtering structure in your kidneys. Each of your kidneys contain more that a million tin filtering nephrons that help clean your blood.
Renal Artery - renal vein - Bowman’s capsule - glomerulus - distal tubule - proximal tubule - loop of Henley - capillaries - collection duct.

Question 3

Filtration

Answer 3

The blood is filtered by nephrons, the functional units of the kidneys. Cells, proteins, and other large molecules are filtered out of the glomerulus by a process of ultrafiltration.

Question 4

Reabsorption

Answer 4

Is the process by which the nephron removes water and solutes from the tubular fluid (pre-urine) and returns them to the circulation blood.

Question 5

Secretion

Answer 5

A process by. Which substances are produced and discharged from a cell, gland, or organ for a particular function in the organism.

Question 6

The Urinary Tract

Answer 6

The kidneys filter about 120 to 150 quarts of blood to produce around the clock. Ureters are the thin tubes, one on each side of the bladder - that carry urine from each of the kidneys to the bladder. The bladder expands as it fills with urine. This will fill until the person empties. A normal bladder acts like a reservoir and can hold 1.5 to 2 cups of urine.

Question 7

Urine formation

Answer 7

There are three main steps of urine formation: glomerular filtration, reabsorption, and secretion. These processes ensure that only waste and excess water are removed from the body.