Topic 7 : The Urinary System

Question 1

The organs, tubes, muscles, and nerves that work together to create, store and carry urine are called

Answer 1

The urinary system

Question 2

The urinary system includes what

Answer 2

Two kidneys, two ureters, the bladder, two sphincter muscles, and the urethra

Question 3

The male urethra is the common canal for what

Answer 3

Reproduction, as well as the urinary systems

Question 4

The male urethra is how long

Answer 4

18-20cm

Question 5

The female urethra serves what only

Answer 5

The urinary canal

Question 6

How long is the female urethra

Answer 6

4cm

Question 7

What does the body use to maintain bodily functions, including energy and self repair

Answer 7

Nutrients from food

Question 8

The urinary system works with the lungs, skin, and intestines - all of which excrete what

Answer 8

Waste - to keep the chemicals and water in the body balanced

Question 9

What is the name of a type of waste that the urinary system removes from your blood

Answer 9

Urea

Question 10

When foods containing protein, such as meat, poultry, and certain vegetables are broken down what is produced

Answer 10

Urea

Question 11

Urea is carried in the bloodstream to what organ

Answer 11

Kidneys

Question 12

Where are the kidneys located

Answer 12

Near the middle of the back, just below the ribcage

Question 13

The kidneys remove urea, together with what

Answer 13

Water and other waste substances from the blood through tiny filtering units called nephrons

Question 14

A nephron consists of a ball formed of what

Answer 14

Small blood capillaries, called glomerulus, and a small tube called a renal tubule

Question 15

Urea, together with water and other waste substances, forms what as it passes through the nephrons and down the renal tubules of the kidneys

Answer 15

Urine

Question 16

From the kidneys, urine travels down two thin tubes called _______ to the bladder

Answer 16

Ureters

Question 17

How long are the ureters

Answer 17

About 20-25cm

Question 18

The muscles in the ureter walls constanstantly tighten and relax what happens to the urine

Answer 18

It’s forced downward away from the kidneys

Question 19

What can develop if urine is allowed to stand still or back up in the kidneys

Answer 19

A kidney infection

Question 20

How often are small amounts of urine emptied into the bladder from the ureters

Answer 20

About every 10 to 15 seconds

Question 21

The bladder a hollow muscular organ shaped like balloon sits where in your body

Answer 21

In your pelvis

Question 22

How is the bladder held in place in your pelvis

Answer 22

By ligaments attached to other organs and the pelvic bones

Question 23

If the urinary system is healthy how much urine can it hold and for how long comfortably

Answer 23

16oz (2 cups) for 2 to 5 hours

Question 24

What are the circular muscles called that help keep urine from leaking

Answer 24

Sphincters

Question 25

What is the tube that allows urine to pass outside the body

Answer 25

The urethra

Question 26

What muscles close tightly like a rubber band around the opening of the bladder into the urethra

Answer 26

Sphincters

Question 27

What tells your body when you need to urinate

Answer 27

The nerves of the bladder

Question 28

When does the sensation to urinate become stronger

Answer 28

When the bladder continues to fill and reach its limit

Question 29

At the point when your bladder has reached its limit what happens

Answer 29

Nerves from the bladder send a message to the brain that the bladder is full, and your urge to empty your bladder intensifies

Question 30

When urinating what does the brain signal to the bladder

Answer 30

It’s tells the bladder muscles to tighten, squeezing urine out of the bladder

Question 31

What else does the brain signal at the same time when you urinate as well as telling the bladder muscles to tighten

Answer 31

It signals to the sphincters muscles to relax

Question 32

When the brain signals to tighten the bladder muscles and relax the sphincter muscles what happens

Answer 32

Urine exists the bladder through the urethra and when all the signals occur in the correct order, normal urination occurs