Integumentary System

Question 1

Integumentary System contains

Answer 1

Hair, nails, glands, blood vessels, muscles and nerves.

Question 2

Thickness and weight of the skin

Answer 2

weighs 4.5-5 kg 0.5 (eyelids) - 4mm (heels) thick

Question 3

the skin contains

Answer 3

Keratinised, stratified squamous, epithelial tissue
Connective tissue
muscle tissue
nervous tissue

Question 4

Functions of the skin

Answer 4

Protect from water & UV light, chemicals etc
Sensory to detect touch, pressure, vibration etc
Excretion of water, salt CO2, ammonia & urea
Synthesis of Vitamin D
Stores blood
Assist in temp regulation

Question 5

Structure of skin ( 3 layers )

Answer 5

1 - epidermis
2 - Dermis
3 - the subcutaneous (hypodermis)

Question 6

The Epidermis consists of and helps with

Answer 6

Keratinised stratified squamous epithelial tissue helps protect the skin & underlying tissue from heat, microbes, chemicals and uv light

Question 7

The Dermis consists of

Answer 7

Sensory neurons, the arrestor pills muscle, sebaceous glands (oily secretion), dermal arterioles (temp regulation), Hair follicles

Question 8

Melanin

Answer 8

reddish yellow to brown black colour pigment

Question 9

Carotene

Answer 9

a yellow orange pigment in carrots pumpkin

Question 10

Haemoglobin

Answer 10

protein that gives red blood cell their colour when fully oxygenated