Soc 14 - Muscles Flashcards
What are voluntary muscles?
Voluntary muscle is made up of bundles of
individual fibres. Each fibre contains many
myofibrils, which are strands that can grab onto
each other and pull to make the muscles contract
What are involuntary muscles?
Muscles not under your control.
What is cardiac muscle?
Only found in the wall of the heart.
What does vascular mean?
Relating to blood vessels.
What is an antagonistic pair?
Muscles that work together to create movement.
What are muscle fibres?
Make up voluntary muscle; divided into type I, type IIa and type IIx.
What are Type I muscle fibres?
Slow twitch muscle fibres; suited for low intensity.
What are Type IIa muscle fibres?
Fast twitch muscle fibres used in anaerobic work.
What are Type IIx muscle fibres?
Fast twitch muscle fibres that are used in anaerobic work and can generate force.
What is myoglobin?
A red pigment that transports oxygen to the muscles.
