Muscle system

Question 1

motion

Answer 1

alternating contraction and relaxation

of muscles

Question 2

What is the percentage of Muscular tissue in our body

Answer 2

40–50 % of total body

mass.

Question 3

Myology

Answer 3

the study of the structure, function, and diseases of muscular tissues.

Question 4

Endomysium

Answer 4

A thin layer of extracellular matrix that surrounds muscle fibres

Question 5

Fascicle

Answer 5

Bundle of axons in a nerve surrounded by the perineurium.

Between 10 and 100 muscle fibres are bundled up together into a group

Question 6

Skeletal muscle tissue characteristics

Answer 6

Long, cylindrical, striated muscle fibres, cells are multinucleated
Voluntary
Produces movement of the body

Question 7

Cardiac muscle tissue

Answer 7

Short, wide, branching striated cardiac muscle cells with intercalated discs, cells have a single nucleus or two nuclei.
Involuntary
Produces beating of heart

Question 8

Muscle tissue

Answer 8

Thin, smooth muscle cells, generally joined by gap junctions, cells have a single nucleus.
Walls of hollow organs, as well as the skin and eyes.
Causes hair to stand erect adjusts the shape of the lens and the size of the pupil of the eye.

Question 9

5 properties of muscle tissue

Answer 9

1) Contractibility= ability to contract
2) Excitability= ability to react to stimulus
3) Condictivity= ability to conduct electrical changes
4) Extensibility= ability to stretch
5) Elasticity= ability to t\return to the original lenght