Muscles Flashcards
(38 cards)
Tissue around the entire muscle
Epimysium
Tissue surrounding the entire muscle that separates f from
Other muscles or bones
Fasciae
Tissue surrounding the individual fascicals
Permits in
Tissue surrounding the individual muscle fiber
Endomysium
Adult stem cells repair damaged muscle cells
Myoblast
The muscle cell membrane outer most layer
Sarcolemma
The muscle cytoplasm
Sarcoplasn
The muscle cells ER
Sarcoplasmic reticulum
Run perpendicular to the ER to carry materials from fiber to fiber run opposition direction of ER
Transverse tubules
Submits of muscle fiber
Myofibrils
Sub units of myofibril
Myofilaments
Neuron that connect to muscles
Motor neuron
Gap between nerve and fiber
Synapse
The last part of the motor neuron in the neuromuscular junction
Synaptic terminal
The part of the muscle in the neuromuscular justin area
Motor end plate
The amount of stimulus needed to release a neurotransmitter
Action potential
Neurotransmitter that causes Na ions to enter the fiber
Acetylcholine
The gradual build up of tension do to repeated stimuli
Wave summation
Maximum tension with brief periods of relaxation
Incomplete tetanus
No period of relaxation constant full tension( smooth)
Complete tetanus
Contraction ends but low levels of tension remains in muscle fiber
Treppe
Tension in the myofibril
Internal tension
Tension at the tendon
External tension
A motor neuron and all of the fibers it connects to
Motor unit
