Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See 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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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 attachments

QuestionAnswer
Origin stationary, immovable attachment of muscle to bone
Insertion movable attachment of muscle to bone
Abduction limb away from median plane
Adduction Limb toward median plane
Flexion decreace joint angle, brings bones closer
Extension increase joint angle, bones farther apart
Rotation Circle
Circumduction Cone
Skeletal Muscle 1. Striated or voluntary 2. Conprises the bulk of the body's muscles 3. attached to skeleton or associated connective tissue
Cells of Skeletal muscle 1. relatively large 2. multi-nucleited 3. long & cylindrical 4. Sarcolemma 5. Sarcoplasm 6. Also called fibers 7. Ranges from 10 microm- 6cm
Sarcomere 1. contractile unit 2. goes form one Z line to the next 3. Actin 4. Myosin
Actin thin filamentboth light & dark
Myosin thick proteinonly in the dark band
Endomysium encloses muscle fibers delicate, areolar connective tissue sheath
Perimysium a collagenic membrane sheaths muscle fibers forming a bundle of fibers called fascicle
Epimysium sheaths the entire muscle large number of fascicles are bound togethervery coarse
Tendons tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tesion
Aponeurosis 1. sheetlike tendinous expansion, serving to connect a muscle with the parts it moves 2. attach muscles to each other or indirectly to bones
Motor unit a neuron and all the muscle cells it stimulates
Synaptic cleft a small fluid-filled gap that separates the neuron and muscle fiber membranes
Acetylcholine (ACh) neurotransmitter chemicleallows change in the permeability of the sarcolemma
Vesicles store various neurotransmitters
Agonists prime moversresponsible for producing a particular movement
Antagonists oppose or reverse a movement
Synergists aid the action of agonists
Fixators specialized synergists
Retus Direction of fibers
Maximus Size
Frontalis Location
Biceps number of origins
Sternocleidomastoid location of origin and insertion
Trapezius shape
Adductor Action
Created by: Cediana Studying
Popular Anatomy sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards