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anatomy

QuestionAnswer
the ability of skeletal muscle to shorten w force contractility
the capacity of skeletal muscle to respond to a stimulus excitability
the ability to recoil elasticity
Each skeletal muscle is surrounded by a connective tissue sleath called Epimysium
Another connective tissue located outside the epmysium Fascia
A muscle is composed of numerous visible bundles called fascilculi, which are surrounded by Perimysium
The fasciculi are composed of single muscle cells called Fibers
Each fiber is surrounded by a connective tissue sleath called Endomysium
The cytoplasm of each fiber is filled with, and also it is a thread like structure Myofibrils
thin myoofilaments actin
thick myofilaments myosin
actin and myosin myofilaments frim highly ordered units called sacromeres
The charge difference across the membrane is called Resting membrane potiential
The brief reversal back of the charge is called Action potiental
Nerve cells that carry action potentials to skeletal muscle fibers Motor Neurons
Each branch that connects to the muscles form Neuromuscular junction
A single motor neuron and all the skeletal muscle fibers it innervates are called Motor unit
the enlarged nerve terminal is presynaptic terminal
the space between muscle cell is synaptic cleft
synaptic vesicles secrets a neurotransmitter called actetylcholine
the sliding of actin myofilaments past myosin contraction sliding filaments\
Created by: briannaroberts2