Human Phys Unit 8

-trophy

development/nourishment

laten-

hidden

sarco-

flesh

myo-

muscle

hyper-

over/more

myocardio-

heart muscle

calat-

something inserted

This muscle is found in the eyes and blood vessels

Multiunit

Smooth muscles can be stimulated by…

norepinephrin

These muscles are only found in the heart

Caridac muscles

This muscle displays rhythmic patterns

Visceral-

If cardiac muscles don't get enough oxygen they…

die

This muscle is randomly arranged

Smooth muscle

This muscles has a slower reaction time compared told skeletal muscles- Sm

Smooth muscles

This muscle contains many mitochondria

Cardiac muscles

Type of thin muscle

Smooth muscle

This muscle is found in internal organs

Visceral

This muscle has no striations

smooth muscle

When a person has musclar dystrophy they are susceptible to…

muscle damage

When muscles become weaker and may be replaced with fat and connective tissue

Muscular Dystrophy

No continuous stimuli is needed for these muscles

Visceral

This is caused by a defective gene

Muscular dystrophy

norepinephrin is another word for…

adrenaline

These muscles are able to strech

Smooth Muscles

These muscles are able to stimulate eachother

Visceral

This can store oxygen in muscles

Myoglobin

This is when the muscles lose their ability to contract

Muscle fatigue

Place where nerve fiber & muscle fiber meet

Neuromuscular junction

A specific sequence of events needs to occur in order for a muscle fiber to contract

Skeletal Muscle Contraction

Muscles get larger due to increased use

Muscular Hypertrophy

The time for muscles to contract

Contraction period

Supplies energy for muscle contractions

ATP

When the actin slides back into place

Relaxation period

This needs to be regenerated into ATP

ADP

Muscles can borrow energy stored in…

Creatine phosphate

Minimal strength needed to start a reaction

Threshold Stimulus

Muscles get smaller due to less use

Muscular Atrophy

When there is a great stimulus and more motor units are activated

Recruitment

If oxygen levels are low, _________ occurs

oxygen debt

A muscle fiber will contract or it won't

All or none response

The time between stimulus & contraction

Latent period

ATP regenerates through…

Cell respiration

When oxygen is resupplied to muscles

Recovery period