biomechanics of tendon and ligament Flashcards
1
Q
what is made up of tendon and ligament
A
connective tissues
2
Q
layers of the tendon
A
deep fascia
epimysium
muscle belly
fascicle
perimysium
fiber
endomysium
fibril
myofilam
3
Q
characteristics of deep fascia
A
- dense irregular CT
- expansive sheet
- functions: organization and protection
4
Q
what does epimysium do
A
surrounds muscle
-encases entire skeletal muscle
- deep to the deep fascia
5
Q
what does perimysium do?
A
surrounds fascicle
6
Q
what surrounds the muscle fiber
A
endomysium
7
Q
characteristics of skeletal muscle contraction
A
- voluntary
- activated by motor neurons
- stimulus transmitted via axon
8
Q
motor unit is consist of
A
- one more neuron
- muscle fibers controls it
- neuromuscular junctions assicatied with each of the axon terminals from the single neuron
9
Q
true or false: most muscles have many motor units
A
true
10
Q
events at the neuromuscular junction
A
- action potential in axon opens Ca channels
- Ca enters terminal
- ACh vesicles released
- ACh enters synapse: binds to receptors - opens Na channels
- Na enters sarcoplasm
- AP propagates along sarcolemma
11
Q
what is Transverse Table - SR system
A
