Muscles Flashcards
(40 cards)
Name the 3 planes of movement
Frontal, Sagittal, Transverse
where does the transverse plane go
Through the stomach
What movement is possible at the frontal plane
adduction and abduction
What type of ion diffuses into the neuron
sodium
what law states that all muscle fibres contract with full force or not at all
All or none law
which type of muscle fibre has the smallest fibre size
slow twitch
which muscle fibre type is most suited to aerobic exercice
slow twitch
what type of fibre would a sprinter have
Fast Glycolytic
what protein is found in the muscle fibres, responsible for providing oxygen to muscles
myoglobin
what type of muscle stabilises the prime mover
the fixator
what are the two types of isotonic contraction
eccentric and concentric
which type of contraction lengthens the muscles
eccentric
what is an isometric contraction
the muscle contracts, but there’s no change in the length
what type of movement is available at the ankle
dorsiflexion and plantar flexion
at what joint is pronation and supination available
the wrist
what happens during abduction
the joint moves away from the midline of the body
what are the 4 types of muscle contractions
isotonic, isometric, eccentric, concentric
how do the muscles create movement
the tendons pull on bones
what are 3 types of muscles
antagonist, agonist, fixator
what is the agonist
the muscle directly responsible for movemnet
What is a motor unit made of
a group of fibres and its neuron
what is a neuron composed of
the axon, the myelin sheath, dendrites
what is an electromechanical process
the transmission of a neural message
When does a neurone have resting potential
when it isn’t conducting an impulse