Questions for PPT MUSCLE CONTRACTION

What is skeletal muscle attached to?

Bones of skeleton

What is the function of a skeletal muscle??

Pull bone or skin to cause movement

Is skeletal muscle Multinucleate or uninucleate?

Multinucleate

Where is cardiac muscle found?

In the walls of the heart

Is cardiac muscle Multinucleate or uninucleate

Uninucleate

What is contractility?

It is muscles forcibly shortening when stimulated

What is excitability?

The ability of muscle to respond to a stimulus

What is extensibility ?

The ability of muscle to stretch beyond its resting length

What is elasticity?

The muscles ability to recoil after being stretched

Name all the muscle tissues

Skeletal muscle

Cardiac muscle

Smooth muscle

Name all the muscle characteristics?

Contractility

Exciteability

Extensibility

Elasticity

Muscle has 4 functions name them ?

Produce movement

Maintain posture

Stabilize joints

Generate heat

How does muscle produce movement ?

Locomotion and manipulation

By moving blood through the circulatory system

Moving food through the digestive system

How does muscle maintain posture ?

By counteracting the pull of gravity

Is the origin of muscle more or less moveable ?

The origin Less moveable

Is the insertion if a muscle more or less moveable?

The insertion is more moveable

When muscle shorten where does the insertion move?

Towards the origin

Can our muscles push?

No muscle always pull they never push

Name the order of the muscle tisuues ?

1. Epimysium

2. Perimysium

3. Fascicle

4. Endomysium

5. Muscle fiber

6. Sarcolemma

7. Sarcoplasm

What is the epimysium ?

It's the dense irregular connective tissue surrounding the muscle

What is the perimysium?

It's the connective tissue surrounding each fascicle

What is a fascicle?

The bundle of muscle fibers within the epimysium

What is the endomysium?

The connective tissue sheath around each muscle cell

What is muscle fiber?

Each individual muscle cell

What is the sarcolemma

The plasma

What is the sarcoplasm ?

Cytoplasm of muscle cell