Muscular System Flashcards
1
Q
Fascia
A
outer layer of connective tissue surrounding a muscle
2
Q
Fascicles
A
bundle of individual muscle fibers
3
Q
Muscle fiber
A
cellular components and myofibrils encased in a plasma membrane
4
Q
Sarcomere
A
produces muscular contraction; repeating sections of actin and myosin
5
Q
Sliding filament theory
A
thick and thin filaments slide past one another, shortening the entire sarcomere
6
Q
Type 1 (slow twitch) muscle fibers
A
smaller size, slower to produce tension, fatigue slowly
7
Q
Type 2 (fast twitch)
A
larger size, quick to produce tension, fatigue quickly
8
Q
Motor unit
A
one motor neuron and the muscle fibers it connects with
9
Q
Neural activation
A
contraction of muscle generated by neural stimulation
10
Q
Neurotransmitters
A
chemical messengers that transport impulses from nerve to muscle
