Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Muscle & Contraction

Muscle ContractionTest

Connective tissue, enshething a bundle of muscle cells perimysium
Connective tissue, enshething the entire muscle epimysium
Contractile unit of muscle sarcomere
A muscle cell fiber
Thin, reticular connective tissue investing each muscle cell endomysium
Cell membrane of a muscle cell sarcolemma
A long, filamentous organelle found withhin muscle cells; has a banded appearance. myofilament
Actin or myosin containing structure myofibril
cord-like extension of connective tissue beyond the muscle, serving to attach it to the bone. tendon
voluntary muscle skeletal
A band myosin
I band actin
The junction between a motor neuron's axon and the muscle cell membrane. neuromuscular
A motor neuron and all of the skeletal muscle cells it stimulates motor unit
the actual gap between an axonal ending and the muscle cell synaptic cleft
a neurotransmitter within the motor unit Acetylcholine
Na+ Sodium ions
K+ Potassium ions
Ca+ Calcium ions
specialized smooth endoplasmic reticulum sarcoplasmic reticulum
thick filaments myosin
thin filaments actin
Several sheathed muscle fibers wrapped by a perimysium fascicle
single, brief, jerky contraction muscle twitch
nerve impulse action potential
causes muscle soreness lactic acid
production of ATP without oxygen. anaerobic respiration
production of ATP with oxygen aerobic respiration
produces the most ATP molecules aerobic respiration
energy molecules ATP
anaerobic respiration waste lactic acid
wasting away of muscle atrophy
contraction in which muscle shortens and movement occurs isotonic contraction
contraction in which tension increases but muscle doesn't shorten and movement does not occur. isometric contraction
muscle can no longer contract. muscle fatigue
the state of continuous partial contractions muscle tone
rapid stimuli with no evidence of relaxation and the contractions are completely smooth and sustained. tetanus
an electrical event occuring when sodium ions move within a neuron. action potential
"resting cell" polarized
the rush of sodium ions into a cell and potassium ion out of the cell. "action potential" depolarization
the return to a cell is that is said to be "resting". repolarization
causes a nerve cell to produce a action potential. stimuli
a ion on the myofilaments, that causes the myofilaments to slide past one another. calcium
contraction occurs in which muscle shorten and work in done. isotonic
contraction occurs in which the muscle does not shorten but tension in the muscle keeps increasing and no movement occurs. isometric
energy source used to make ATP during aerobic respiration. glucose
number of ATP molecules made during aerobic respiration. 36
Created by: osucowboyup