Muscular System Flashcards
Label major muscles involved in movement
(Worksheet or anatomy quiz)
What are the types of muscle tissue?
Skeletal
Smooth
Cardiac
Describe skeletal muscle
Primarily attached to bones and moves the skeleton
Striated
Voluntary muscle movement
Describe cardiac muscle
Forms most of the heart
Striated
Movement is involuntary
Describe smooth muscle
Located on the wall of internal structures like the stomach and blood vessels
Non striated
Involuntary muscle movement
What is the role of muscles?
To contract
What is origin?
The origin is the attachment site that doesn’t move during contraction. Usually proximal
What is insertion?
The attachment site that does move when the muscle contracts. Usually distal
What is action?
Movement of the appendage
What does the Agonist muscle do?
Provided the main force that causes movement (the prime mover)
What does the antagonist muscle do?
Relaxes and lengthens to allow the agonist to contract, this helping to control an action
What do stabilisers do?
Help the agonist muscle by promoting the same movement. Also helps to steady the origin of a muscle or bone to allow for more effective movement
What is reciprocal inhibition?
A neuromuscular reflex that inhibits opposing muscles during movement
What are the types of muscle contractions?
Concentric
Eccentric
Isometric
Describe concentric muscle contraction
The muscle shortens to pull on bones, bringing them closer together
