Excretory System

Question 1

What does every cell produce?

Answer 1

A: wastes

Question 2

What is the process by which wastes are limited called?

Answer 2

A: excretory

Question 3

What does the skin excrete?

Answer 3

A: access water, and salts in the form of sweat

Question 4

What do the lungs excrete?

Answer 4

A: carbon dioxide

Question 5

What do the kidneys do?

Answer 5

A: play a major role in excretion

Question 6

What’s three things does the kidneys do?

Answer 6

1. Remove waste products from the blood
2. Maintain blood pH.
3. Regulate the water content of the blood and blood volume.

Question 7

Where are the kidneys located?

Answer 7

A: on either side of the spinal column near the lower back

Question 8

What is the ureter?

Answer 8

A: a tube that leaves each kidney carrying urine into the urinary bladder

Question 9

What is the urinary bladder?

Answer 9

A stack like origin where urine is stored

Question 10

How does blood enter the kidneys?

Answer 10

The renal artery

Question 11

What does the kidney remove from blood?

Answer 11

Access water and waste products

Question 12

Where does clean filtered blood leave the kidney through

Answer 12

The renal vein

Question 13

What are the two distinct regions of the kidneys?

Answer 13

A: the renal medulla and the renal cortex

Question 14

What’s the outer part of the kidney called?

Answer 14

A: renal cortex

Question 15

What’s the inner part of the kidneys called?

Answer 15

A: the renal medulla

Question 16

What is the part of the kidneys that do all the work?

Answer 16

A: nephrons

Question 17

What three blood supplies does the nephron have?

Answer 17

1. arteriole
2. Venule
3. A network of capillaries connecting them.

Question 18

Where are impurities filtered out and emptied into?

Answer 18

The collecting duct

Question 19

Does the blood enter through an arteriole or venule?

Answer 19

A: enter the arteriole

Question 20

What processes in blood purification?

Answer 20

A: filtration and reabsorption

Question 21

What’s filtration?

Answer 21

A: passing a liquid or gas through a filter to remove wastes

Question 22

Where does the filtration of blood mainly take place?

Answer 22

A: in the glomerulus

Question 23

What’s the glomerulus?

Answer 23

A: a small network of capillaries in case in the top of the nephron by a hollow cup shaped structure called Bowman’s capsule

Question 24

Where does fluid from blood flow to?

Answer 24

A: bowman’s capsule

Question 25

Are both good and bad things filtered from the blood?

Answer 25

Yes

Question 26

What are two large to pass through the capillary walls?

Answer 26

Cells

Question 27

Most of what removed from the blood at Bowmans capsule makes its way back into the blood?

Answer 27

Material

Question 28

What is reabsorption?

Answer 28

The process in which liquid is taken back into a vessel

Question 29

What percentage is the water that enters Bowmans capsule is reabsorbed into the blood?

Answer 29

99%

Question 30

When have most water and nutrients been re-absorbed into the blood?

Answer 30

When the filtrate drains in the collecting duct

Question 31

What is the remaining material called? Where is it emptied to?

Answer 31

Urine. Collecting duct.

Question 32

Where is urine primarily concentrated?

Answer 32

In the loop of henle

Question 33

Where is water stay or go to the bladder?

Answer 33

The loop of henle

Question 34

Where is urine collected?

Answer 34

Bladder

Question 35

What is the tube where urine is released called?

Answer 35

Urethra

Question 36

What is what the kidneys do dependent on?

Answer 36

What is in the blood?

Question 37

When the amount of water in the blood increases, what happens?

Answer 37

The rate of water reabsorption in the kidneys decrease

Question 38

When the kidneys detect an increase in salt, what happens?

Answer 38

They respond by returning less salt to the blood

Question 39

What happens to the excess salt?

Answer 39

It goes into the urine

Question 40

Can human survive with one kidney

Answer 40

Yes

Question 41

What are the two options if both kidneys are damaged

Answer 41

1. Kidney transplant.
2. Kidney dialysis.