The excretory system

Question 1

What structures of the body make up the excretory system?

Answer 1

Urinary System, Sweat glands, Respiratory System

Question 2

What is the waste product of making energy from a protein called?

Answer 2

nitrogenous waste

Question 3

Is CO2 and nitrogenous waste toxic?

Answer 3

Yes, that’s why they must be expelled.

Question 4

What is the purpose of the urinary system?

Answer 4

Filter blood to remove nitrogenous waste, and excess water, minerals, and salts.

Question 5

What organs are involved in the urinary system?

Answer 5

kidneys, ureters, bladder, urethra

Question 6

What is the kidney’s function?

Answer 6

Filter blood coming in from the renal artery is balanced.

Question 7

What is the name of the filtration units in the kidney?

Answer 7

nephrons

Question 8

What does the waste removed from the kidney make up (what is it expelled by) ?

Answer 8

urine

Question 9

What does urine consist of?

Answer 9

Mostly of water, nitrogenous waste, minerals, salts, vitamins, and urochrome.

Question 10

What is urnochrome, what is it produced by?

Answer 10

The pigment that gives urine its yellow color, produced by the destruction of hemoglobin from old RBC.

Question 11

What color should urine be, what color is dehydration?

Answer 11

pale yellow, dehydration: dark yellow

Question 12

What is the function of the ureters?

Answer 12

transport urine from the kidneys to the bladder

Question 13

What is the function of the bladder?

Answer 13

It stores urine until it is ready to be expelled, and it contains a sphincter muscle

Question 14

What is the function of a sphincter muscle, in the context of urine?

Answer 14

It contracts to stop involuntary urine through the urethra (in general, it’s a muscle that opens and closes).

Question 15

What is the urethra?

Answer 15

tube that carries urine from the bladder to the outside of the body: different in men (longer) than in women

Question 16

What is a UTI?

Answer 16

Urinary Tract Infections (in bladder or urethra)

Question 17

What causes a UTI?

Answer 17

Occurs when bacteria (E.coli: poop) from the anus make their way into the urethra.

Question 18

What is homeostasis, and why is it important?

Answer 18

regulation and maintenance of constant internal conditions in an organism: making sure everything is balanced with one another.

Question 19

How do the systems work together?

Answer 19

respiratory system brings oxygen into lungs while digestive system absorbs glucose from food you eat, then circulatory system carries both oxygen and glucose to your cells where cellular respiration occurs after that the waste from cellular respiration exits by the excretory system which expels the nitrogenous waste (urine)