Soc 14 Flashcards
What are volentary muscles
They are under your control, you choose when to use or relax them. These are the most used muscles in your body.
What is the shape of volentary muscles
Mostly cylinder shaped, lomg and thin but contract and get short and fat
What is an involentary muscles
Muscles that you do not have control over
What is a cardiac muscle
Your heart and muscles in the wall of your heart
What is a vascular muscle
Relating to blood vessels
What is an antagonistic pair
A pair of muscles that when one is working the other is relaxing
What are muscle fibres
Make up volentary muscles
Divided into type 1 , 2a , 2x (roman numerals)
What is type 1
Slow twich muscles - low intensity
What is type 2a
Fast twitch muscle fibres - anerobic work
What is type 2x
Fast twitch muscle fibres - most explosive
What is myoglobin
Red pigment - transferres oxygen to muscles
Why are slow twich fibres darker in colour
Because they contain more myoglobin
