Muscle Contractions Flashcards
1
Q
Muscles use ______ to create a force. This force causes __________. The force is created by muscles _____________.
A
Energy
Movement
Contracting
2
Q
What is an isotonic contraction?
A
When a muscle changes length during its contraction.
THE JOINT WILL MOVE.
3
Q
What is an isometric contraction?
A
Muscles contract but there is NO CHANGE in length.
The joint will stay in the same position.
4
Q
What is a concentric contraction?
A
When the muscle SHORTENS producing TENSION.
This force pulls two bones together.
It CAUSES joint movement.
5
Q
What is an eccentric contraction?
A
When the muscle LENGTHENS producing tension.
This resists forces like gravity and weight.
It CONTROLS joint movement.
