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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

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

ch.7 Muscular System

3 types of Muscle Skeletal, Visceral, Cardiac skeletal has 600 muscles 40% of body weight
Excitabiltiy ability to recieve and respond to a stimuslus from the nervous system
Contractility ability to shorten or contract
Contractility has 4 important function movement, posture, joint stability, heat production
Extensibility muscle can be stretched or extended
Elasticity capacity to recoil or return to its orginal shape
3 skeletal muscle attachments direct, indirect: tendons (aponeurosis), fixed end
aponeurosis broad flat sheetlike
tendons thick rope like
name the 2 stimulus for contraction motor neurons, motor unit
motor neurons special nerve cell that stimulates contraction
motor units single motor neuron and all the muscle fibers it stimulates comprise
what are the 3 contractions of the whole muscle muscle tone, insontonic contraction, isometric contraction
Muscle tone (tonus) muscle unit takes turns contracting and relaxing. (continued state of partial contraction that is present in muscles)
Isontonic contraction tension is constant/Same but the length of the muscle changes
Isometric contraction tension in muscle increases but there is little to no movement
name the 3 movements produced by skeletal muscle agonist, synergist, antagonist
agonist prime mover
synergist works with prime mover to cause movement
antagonist muscles that oppse a particular movement
Created by: AshleyRenay