B1 Integumentary system Flashcards
Name the organ shown in the diagram
Skin
Name the system shown in the diagram
Integumentary
Name structure A
Hair
Name structure B
Sweat gland
Name structure D
Adipose tissue
or
Subcutaneous fat
Name structure C
Sebaceous gland
Give 5 functions of the skin
Thermoregulation
Protection against foreign bodies
Protection against mechanical damage and solar radiation
Energy storage
Production of Vitamin D
What is the function of the erector muscle?
Raise or lower hairs on skin
Name three chemicals found in sweat
Water
Salt
Urea
Why does the skin produce sweat?
Thermoregulation
Increases heat loss from the body
When do the arterioles in the skin dilate?
When body temperature is too high
Name three ways in which the skin can increase the loss of heat from the body
Vasodilation (more blood to skin surface)
Increase amount of sweat produced
Lower hairs
Give three ways in which heat loss from the skin can be reduced.
Vasoconstriction (reduce amount of blood at surface of the skin)
Hairs raised
Shivering
Reduce amount of sweat released
Name the vitamin produced in the skin
Vitamin D
Name a deficiency disease caused by the lack of vitamin D
Rickets
How does the skin protect the body against foreign bodies?
Barrier
Sealed by scabs
Dead outer surface
Name the type of pathogen that causes athletes foot
Fungus
How is athletes foot spread from person to person?
Fungal spores
From communal changing rooms or from people in household
How is athletes foot treated?
Wash feet daily
Dry between the toes
Change socks regularly
Antifungal creams/powder
Name structure E
Sweat duct
Name structure F
Erector muscle
Name structure G
Sensory nerve ending
Give two places where heat receptors can be found
Blood vessels
and
Skin
The heat receptors send impulses to the ….
Hypothalamus
Name the coordinator for thermoregulation
Hypothalamus
