the excretory system

Question 1

excretion

Answer 1

excretion: removal of wastes from the body

Question 2

skin

Answer 2

skin: external covering of an animal body

Question 3

lungs

Answer 3

lungs: the organ for breathing air. Gas exchange occurs in the lungs.

Question 4

liver

Answer 4

liver: the largest gland in the body. The liver secretes bile for the digestion of fats, builds proteins from amino acids, breaks down many substances harmful to the body and has many other essential functions.

Question 5

kidneys

Answer 5

kidneys: body organs that filter the blood, removing urea and other wastes

Question 6

nephrons

Answer 6

nephrons: the filtration and excretory units of the kidney

Question 7

ureters

Answer 7

ureters: tubes from each kidney that carry urine to the bladder

Question 8

bladder

Answer 8

bladder: sac that stores urine

Question 9

urine

Answer 9

urine: yellowish liquid, produced in the kidneys. It is mostly water and contains waste products from the blood such as urea, ammonia and uric acid.

Question 10

urination

Answer 10

urination: passing of urine from the bladder to the outside of the body

Question 11

urethra

Answer 11

urethra: tube through which urine is emptied from the bladder to the outside of the body

Question 12

Bowman’s capsule

Answer 12

Bowman’s capsule: a cup-like structure at one end of a nephron within the kidney, surrounding the glomerulus. It serves as a filter to remove wastes and excess water.

Question 13

glomerulus

Answer 13

glomerulus: a cluster of capillaries in the kidney that acts as a filter to remove wastes and excess water

Question 14

haemodialysis

Answer 14

haemodialysis: the process of passing blood through a machine to remove wastes