Muscles Flashcards
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
When does action potential occur
when a sufficient number of sodium ions have diffused into the neuron
what happens to the axon when the sodium ions diffuse
it is depolarized
what are the three types of muscle fibres
slow twitch, fast glycolytic, fast oxidative glycolytic
which musce fibre has the highest anaerobic capacity
Fast glycolytic
What agonistic pair can be found at the wrist
wrist flexors, wrist extensors
what range of movement is available at the elbow
flexion, extension
what muscle is responsible for flexion at the elbow
bicep brachii
What is the agonist for adduction at the shoulder
latissimus dorsi
what is the agonist for flexion at the hip
illiopsoas
what is the antagonist for flexion at the hip
gluteus maximus
what muscles are a part of the hamstring group
bicep femoris, semitendonosus, semimembranosus
what is the agonist for flexion at the knee
the hamstring group
what muscles are a part of the adductor group
adductor longus, adductor brevis, adductor magnus
what muscles are found at the ankle joint
gastocnemius, soleus, tibialis anterior
what movement can be found at the ankle
dorsiflexion, plantar flexion
what is the agonist for dorsiflexion
tibialis anterior
