Soc 14 - The Muscular System Flashcards
(8 cards)
The 4 Angatonistic pairs
-Triceps and Biceps
-Quadriceps and Hamstrings
-Tibialis Anterior and Gastrocnemius
-Gluteus Maximus and Hip flexors
What is an Antagonistic pair
Muscles that work together to create a movement
Agonist
When the muscle contracts
Antagonist
When the muscle is relaxed
Muscle fibres
Make up voluntary muscles; divided into type I, type IIa and type IIx
Type I muscle fibre
Slow twitch muscle fibres; suited to low intensity work
Type IIa muscle fibre
Fast twitch muscle fibres used in anaerobic work; can be improved through endurance training to increase their resistance to fatigue.
Type IIx muscle fibre
Fast twitch muscle fibres used in anaerobic work and can generate much greater force than other fibre types, but fatigue quickly.