Excretory and Integumentary Systems

Question 1

What is the function of the excretory system?

Answer 1

filter waste from the blood

Question 2

What do the kidneys do?

Answer 2

• filter blood that has collected waste from cells
• urea is TOXIC!
• remove urea by making urine

Question 3

What are nephrons?

Answer 3

Tubes within kidneys help filter blood and remove waste

Question 4

What is the order liquid waste moves in the excretory system?

Answer 4

kidneys -> ureters -> bladder -> urethra

Question 5

What is the bladder’s special function?

Answer 5

bladder’s function is to expand, allowing more waste to fit

Question 6

What are the filters of the excretory system?

Answer 6

the kidneys

Question 7

What are the 4 functions of the integumentary system?

Answer 7

1. protect the body from germs
2. regulate body temperature
3. remove waste through pores
4. sense external stimuli

Question 8

What are the 3 layers of the skin?

Answer 8

epidermis
dermis
subcutaneous tissue

Question 9

Characteristics of the epidermis:

Answer 9

• surface layer
• has dead skin cells
• new skin cells produced at the epidermis base

Question 10

Characteristics of the dermis:

Answer 10

• middle layer
• contains blood vessels + nerves + muscles + oil/sweat glands

Question 11

Characteristics of the subcutaneous tissue:

Answer 11

• fatty tissue
• insulates body
• stores energy

Question 12

What are the 2 structures of the integumentary system and what do they do?

Answer 12

Hair: helps protect skin from UV rays and keep the body warm

Nails: used for protection, scraping, and manipulating objects