The Skin (and Taste Buds)

What are the functions of the skin?

Protection from physical damage, germs and UV rays,

Waterproofs the body,

Detects touch stimuli,

Insulates the body

Which Vitamin can be produced by the skin?

Vitamin D

What is the importance of Melanin?

It absorbs U-V rays from the sun.

What is homeostasis?

Maintaining a stable internal environment

What is Hypothermia

abnormally low body temperature

What is Hyperthermia

overheating of the body

What is Vasoconstriction?

narrowing of arterioles near the skin's surface so that less blood flows

What is Vasodilation?

widening of arterioles near the skin's surface so more blood can flow

What 5 things happen to the human body when it's cold?

Hair is raised,

Vasoconstriction,

Less or No Sweat,

Increased metabolism,

Shivering

What 5 things happen to the human body when it's hot?

Hair lies flat.

Vasodilation,

More sweating,

Decreased metabolism,

No shivering

Function of sweat as it relates to temperature

Cooling the body

What is albinism?

Albinism is an inherited condition that leads to someone having very light skin, hair, and eyes. It happens because they have less melanin than usual in their body.

Diagram of the tongue