1. Interactions of Skeletal muscle in the body
Eddy Figueredo
P.5

2. Intro of interactions of skeletal muscles
Muscles cannot push they can only pull therefore body movements are a result of two or more muscles working against together or with each other.
Muscles are organized so whatever a muscle or a group of muscles do the opposite can reverse the movement.
While the prime movers are labeled as the key to muscle interactions but the synergists and antagonists muscles also play a huge factor in keeping smooth muscle movement.
The Primary mover and antagonist pair is called an antagonistic pairs.

3. Prime Mover
A prime mover is a muscle that has a major responsibility in movement.
This term comes from the business world which means someone who can do things on their own.
The role of antagonist and prime mover can be switched depending on the movement.
A prime mover is also known as an agonist.

4. Question: What is another name for a Prime mover?
Agonist
Antagonist
Primary Mover
creator

5. Question: What do you call a primary and Antagonist pair?
Opposite pair
antagonistic pair
Agonist Pair
Push/pull pair

6. Antagonist
The muscles that moves in reverse or opposite to the prime mover is called the antagonist
When the prime mover is active the antagonist is relaxed and stretched.
Antagonist work with prime movers like a sea saw motion. they work in opposite like when one goes up the other is down.

7. Prime mover and Antagonist example
As the bicep contracts it is called the Prime mover also called the agonist, the triceps relaxes which is the antagonist.
This is created when the arm is brought up to the shoulder.

8. Question In a bicep and tricep motion which is the antagonist?

9. Fixator
A fixator is a muscle that works as a stabilizer for any body movement during motion.
Fixators are also called “specialized Synergists”.
It allows the prime mover to work effectively by stabilizing the origin of the prime mover muscle so that it can pull and make an effective contraction.

10. Fixator Example
The Rectus Abdominis is acting as a fixator since it is preventing the TFL from tilting the pelvis.

11. Synergists
Synergists help prime movers produce the same movement or reduce movements that are not good for the body.
It helps prevent rotation.
Acts as a movable joint.
Often referred as a ”neutralizer” due to the fact it helps neutralize or remove excess movement

12. Synergist Example:
The biceps brachili flex the lower arm. while the brachioradialis in the forearm and the brachialis in the deep biceps of the upper arm act as synergists to help the motion.

13. bibliography
D, Carnell. "Fixator Muscle." Fixator Muscle - Biology-Online Dictionary. Carnell D, 15 Nov Web. 10 Dec
Venes, Donald. "Anatomical Terminology." Wikipedia. Wikimedia Foundation, 21 Nov Web. 10 Dec
Yoga, Sterling Hot. "Yoga Anatomy: Agonist & Antagonist Muscle Groups - Sterling Hot Yoga Mobile." Sterling Hot Yoga Mobile. Sterling Hot Yoga, 04 Jan Web. 10 Dec
Muscolino, Joseph E. "Copyright © 2011, 2007 by Mosby, Inc., an Affiliate of Elsevier Inc. All Rights Reserved. 1 Roles of Muscles From the Books of Joseph E. Muscolino, DC." Slideplayer -Powerpoint Viewer. Duane Leonard, 24 May Web. 10 Dec