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AnatomyMuscleSystem
Muscle System
Question | Answer |
---|---|
Fascia | Layers of connective tissue |
Muscle fiber | THe basic unit of a muscle |
Myofibril | Bundles of protein fiber that makes up a muscle fiber |
How to strengthen a muscle depends on what? | Weight bearing exercises and lifting weights or do short-term, high-stress exercise |
If don't use muscle for long period of time what happens? | Lose them by losing actin and myosin and they become weaker turning into fat. |
Purpose of muscular system | Movement and heat production |
Trapezius, laterals, and deltoids | Upper back, lower back, and shoulders |
Pectoral, Abdominals, obliques, and Biceps | chest, lower chest, waist, and top of upper arm |
Adductors, gluteus maximus, hamstrings, and caves | inner thigh, butt, upp back of legs (thigh), and lower back of legs |
When motor neurons are released? | Neurotransmitter releases acetylcholine into the gap between the neuron and the muscles |