Muscle tissue Flashcards
Composed of cells that optimized the universal cell property of contractibility.
Muscle tissue
Characterized by the ability to contract move upon stimulation.
Muscle tissue
4 Functions of Muscle tissue
- Excitability/Irritability
- Contractility
- Extensibility
- Elasticity
receive and respond stimuli.
[functions]
Excitability/Irritability
ability to shorten forcibly. (most important)
[functions]
Contractility
ability to be stretched or extended.
[functions]
Extensibility
ability to recoil and resume the original resting length.
[functions]
Elasticity
run the length or a muscle.
[types of m.t]
Skeletal muscle
Location: muscles associated with the skeleton.
[types of m.t]
Skeletal muscle
Muscle fiber is cylindrical but longer.
[types of m.t]
Skeletal muscle
There is no branch.
[types of m.t]
Skeletal muscle
Several nuclei in periperium.
[types of m.t]
Skeletal muscle
3 types of Muscle tissue
- Skeletal
- Cardiac
- Smooth
Cells are branch, are striated, are uninucleate.
[types of m.t]
Cardiac muscle
Locations: heart
[types of m.t]
Cardiac muscle
Function: involuntary, rhythmic contraction.
[types of m.t]
Cardiac muscle
Muscle fibers, myocytes and myoid cells.
[types of m.t]
Cardiac muscle
Number and location of nucleus: 1-2 nuclei (central portion of muscle fiber)
[types of m.t]
Cardiac muscle
Cells are spindle shaped and uninucleate (center of the cell).
[types of m.t]
Smooth muscle
Locations: walls of hollow organs, stomach, intestine, uterus, ureter.
[types of m.t]
Smooth muscle
Functions: involuntary movement.
[types of m.t]
Smooth muscle
Only muscle tissue type that is non-striated.
[types of m.t]
Smooth muscle
Muscle fibers arranged in groups. (3)
- Epimysium
- Perimysium
- Endomysium
enclose the entire (dense irregular).
[fascicle]
Epimysium
