Muscle Levers
What is the Fulcrum?
The Pivot Point
Where is the only place the Cardiac Muscle is found?
The Heart
Agonists are also referred to as...
Prime Movers
Give us at least two examples of things muscles are used for.
Movement, posture, heat generation, breathing, digestion, heartbeat and blood circulation.
What is it called when someone balances hard workouts with proper rest and recovery.
Fatigue Management
The "Effort" can also be known as...
A Muscle Contraction
True or False: The Smooth Muscle moves substances through the body.
True
What are Antagonist Muscles?
Opposes the action of the agonist.
What is the Muscular System?
A complex series of tissues used for enabling movement.
What is Constant Muscle Tension?
Keeping the muscle working the whole time during an exercise.
What are two properties of a load? (Load being what is moved).
The Resistance and the Weight
Which of the three main muscle groups is the only voluntary one? (Meaning you have to manually move it).
The Skeletal Muscle
What is an example of a agonist within the arm?
Bicep
Where is the smallest muscle in the body located?
The Stapedius Muscle, located in the ear.
What is a Muscle Contraction?
When a muscle tightens to create force, either to move or hold a body part still.
What is one of the examples we gave for a Second Class Lever?
Standing on Tiptoes
What does it look like when a muscle is striated?
It has a Striped Appearance
What happens to the Triceps when the Biceps are flexed?
They relax.
Muscles make up what percentage of our body weight?
40%
What is the orderly activation of motor units to produce increasing levels of muscle contraction called?
Motor Unit Recruitment
Fill in the Blank: _ _ _ _ _ _ _ between _ _ _ _ and _ _ _ _ _ _.
Fulcrum, Load, Effort.
Both Skeletal and Cardiac muscles are striated, but what makes them different in this sense?
The Cardiac muscles have branched fibers, the Skeletal muscle doesn't.
What is the difference between fixators and synergists?
Synergists: assists the prime mover.
Fixators: stabilizes nearby joints.
About how many skeletal muscles are in the human body?
600+
What happens in the stretch
We don't know what happens in the stretch.