1
2
3
4
5
100
What is another name for muscle cell?
muscle fiber
100
What muscles are the antagonist during a leg extension?
hamstrings
100
What is the main function of the muscular system?
movement
100
Brain signals are sent to the muscle from the brain through what type of cell?
Motor neuron
100
Anterior #5 
external oblique
200
A bicep curl is what type of lever? 1st, 2nd, or 3rd?
3rd - force in between fulcrum and weight.
200
WHat is the main muscle of the cheek?
buccinator
200
During a muscle contraction, what is the name for the area that does not move?
origin
200
What is the name of the neurotransmitter released by the motor neuron to signal a muscle contraction?
acetylcholine
200
Posterior #9
trapezius
300
Lifting your head from your chest is what type of lever? 1st, 2nd, or 3rd?
1st - fulcrum in between force and weight.
300
the most simple part of the layers of muscle is the:
myofilaments - actin and myosin
300
The layer of muscle that is wrapped by the endomysium
Muscle fiber
300
What must be released by the sarcoplasmic reticulum to allow the actin to bind to the myosin?
calcium
300
Posterior #12
latissimus dorsi
400
What is the inspiration?
breathing in
400
How does muscle contraction heat up our body
Uses ATP that is broken down from food during cellular respiration - a process that releases heat as a waste product.
400
Two myofilaments found in the muscle (must have both)
actin and myosin
400
What is it called when a muscle contracts for only a short period of time, relaxes, and repeats?
twitch
400
Anterior #11
sartorius
500
What muscle is the prime mover in inspiration?
diaphram
500
Lisat three ways that muscles can increase force:
1- stimulate more muscle fibers
2 - stimulate more frequently - action potentials
3 - increase the size of muscle fibers.
500
What is the antagonist mover during a bicep curl?
triceps brachii
500
Name one way muscle can increase force?
1- frequency of motor neuron
2 - number of motor neurons
3 - size of muscle fibers
500
Anterior #3
sternocleidomastoid