Muscles Flashcards
(40 cards)
Cardiac Muscle
- Doesnt fatigue
- Invoulntary
-Striated intercalated discs
Skeletal Muscle
- Striated
-Voluntary
Smooth muscle
- non - striated
- Involuntary
- Fibers not arrange in bands
Origin
Proximal attachment to skeleton
Insertion
Distal attachment to skeleton
Action
The function of the muscle e.g flex shoulder joint
Belly
main part of the muscle
Tendon
Band of strong fibrous tissue, connects muscle to a bone
Ligament
Band of fibrous tissue connecting bone to bone or cartilage
Aponeurosis
Sheet- like tendon, broad attachment e.g. attachment of abdominal muscles
Myofibrils
Muscle fibers within muscle cell
Sacroplasm
Muscle cell cytoplasm
Sarcolemma
Muscle cell wall
Myocyte
Muscle cell/fibre
Fascicle
A tubular bundle of muscle cells/ fibres
Endomysium
Connective tissue around myocytes
Perimysium
Connective tissue around fascicles
Epimysium
Connective tissue around whole muscle
Extensor
Increase angle between two bones
Flexor
Decreases angle between 2 bones
Rotation
Movement of a limb around the long axis
Protract
to move a body part/limb fowards
Retract
to retract a body part/ limb
Agonist
Movement of muscles that cause the prime movement