Study your flashcards anywhere!
Download the official Cram app for free >
- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
- Read
Toggle OnToggle Off
Reading...
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
A key: Read text to speech.a key
Play button
Play button
11 Cards in this Set
- Front
- Back
|
First-class lever
|
When the fulcrum lies between the pull and the load; not abundant in human body
|
|
|
Second-class lever
|
Load lies between the fulcrum and the joint at which the pull is exerted; presence of this type in human body is controversial
|
|
|
Third-class lever
|
Pull is exerted between the fulcrum and load; most abundant in human body
|
|
|
Origin
|
Point of attachment that does not move when the muscle contracts
|
|
|
Insertion
|
Point of attachment that moves when the muscle contracts
|
|
|
Prime mover
|
A muscle that directly performs a specific movement
|
|
|
Agonists
|
Any "mover" muscle that directly performs a movement, including the prime mover
|
|
|
Antagonists
|
Muscles that, when contracting, directly oppose prime movers; relax while prime mover is contracting to produce a more controlled movement
|
|
|
Synergists
|
Muscles that contract at the same time as prime movers; facilitate prime mover actions to produce a more efficient movement
|
|
|
Fixator muscles
|
Joint stabalizers (type of synergists)
|
|
|
Good posture
|
Body alignment that most favors function; achieved by keeping the body's center of gravity over it's base, requires the least muscular work to maintain
|
