Smooth Muscle - Major Skeleton Muscle

Front 1

Smooth muscle can...

Back 1

Contract longer

Front 2

_____ consists of ___ and ___ to help mix the contents of a tube and push them along its length.

Back 2

Peristalsis ; alternate contractions and relaxations

Front 3

What type of smooth muscle is found in the blood vessels? What does it do?

Back 3

Vascular smooth muscle helps to control blood flow and blood pressure.

Front 4

Smooth muscle contraction resembles _______. The only difference is _____.

Back 4

Skeletal muscle contraction ; but smooth muscle cells do not have troponin, (the protein that bind to calcium ions in skeletal muscle)

Front 5

What is troponin?

Back 5

The protein that binds to calcium ions in skeletal muscle, but is not used by smooth muscle.

Front 6

What does smooth muscle use in place of troponin?

Back 6

A protein Calmodulin, to bind to calcium ions.

Front 7

_____ and ____ affect smooth muscle.

Back 7

ACh (acetylcholine) and norepinephrine.

(Pronounced: Nor-ep-en-ephrin-)

Front 8

Swimming...

Back 8

Activated red muscle fibers, which increase fatigue-resistance during prolonged exercise.

Front 9

Weightlifting...

Back 9

Use fatigue-prone white fibers, which increases the size of muscles, but doesn’t affect endurance.

Front 10

If regular muscle use stops...

Back 10

Muscles shrink (atrophy)

Front 11

In cardiac muscle, it works in an ______ manner.

Back 11

All or none. Either the whole structure contracts, or none of it does.

Front 12

Cardiac muscle is ____ and ____.

Back 12

Self exciting and rhythmic.

Front 13

Scissors are

Back 13

First class lever

Front 14

Wheelbarrow is

Back 14

Second class lever

Front 15

Tweezers are

Back 15

Third class lever

Front 16

Origin of the muscle

Back 16

Less moveable end

Front 17

Insertion of the muscle

Back 17

More moveable end

Front 18

Insertion of the muscle

Back 18

More moveable end

Front 19

When a muscle contracts its ___ is _____ its _____.

Back 19

The insertion is pulled toward its origin.

Front 20

Skeletal muscles work ...

Back 20

In groups

Front 21

___ causes an action.

Back 21

An Agonist

Front 22

An ____ works against the action.

Back 22

Antagonist

Front 23

Prime mover

Back 23

Refers to an agonist that provides most of the force for a movement

Front 24

Prime mover

Back 24

Refers to an agonist that provides most of the force for a movement

Front 25

Synergists...

Back 25

Contribute to an action by helping the agonist