Muscular System anatomy & morphemes

What is one function that the muscular system performs

facilitating movement

What does the muscular system help produce?

Body heat

How does the muscular system maintain body posture?

stabilizing skeletal bones and joints & resisting the pull to gravity

What does the muscular system consist of?

striated & non

What type of appearance does striated tissue have

Striped Appearance

What do non striated tissues lack?

myofibrils

What do muscles work in?

Works in pairs to create movement and force

What is agonist?

Main muscle responsible for the movement

What is Antagonist?

muscle which opposes the action and relaxes when the agonist is contracted

What is Synergist?

muscle(s) which support the movement by stabilizing

Where can Cardiac Muscle be found?

Found in the heart

What does cardiac muscle form?

Walls of the heart

Are the contractions in the cardiac muscle voluntary or involuntary?

involuntary

What does smooth muscle do?

creates the lining of internal organs to help move substances

What organs can smooth muscle be found in?

stomach, intestines, bladder & uterus

Where else can smooth muscles be found in ?

blood vessels, trachea, ureters and the esophagus

Are the contractions in the smooth muscle voluntary or involuntary?

involuntary

Is smooth muscle striated or non striated?

non-striated

What does skeletal muscle do?

Attaches to bones and provides movement to the body

What is the percentage of mass that the skeletal muscle takes

about 40%

Are the contractions in the skeletal muscle voluntary or involuntary?

voluntary

What type of fibers does skeletal muscle have?

striated

What are myofibrils?

Consist of protein to support contraction

Actin

Thin filaments

myosin

Thick filaments

excitability

Ability for a muscle to respond to a stimulus

contractability

muscle cells' ability to forcefully shorten

extensibility

muscles ability to stretch

elasticity

uscle's ability to return to its original length when relaxed

agon/o

agony; a contest

brach/i

arm

cleid/o

clavicle

clon/o

turmoil

duct/o

to lead

fasci/o

a band

os

bone

rhabd/o

rod

ten/o

tendon

ad

ex

par

algia:

ceps

paresis

penia

plegia

rrhexis

trophy

ist

ure