Anatomical plane and movement
These anatomical positions means up and down
what is the superior and inferior anatomical position
This fluid allows for smooth joint movement
what is synovial fluid
This happens when a muscle lengthens while still under tension
What is an eccentric contraction?
This lever type has the load on the left, fulcrum in the middle, and effort on the right
what is the first class lever
This fiber makes up 50% of the bodies Muscles
what is type 1 fiber
These anatomical positions means Front and back
what is the anterior and posterior anatomical position
Ligaments connect bone to bone and tendons connect muscle to bone
What is the key difference between ligaments and tendons
This type of muscle contraction contracts muscles with the same tension
what is isotonic contraction
This lever type has fulcrum on the left, load in the middle, and effort on the right
what is the second class lever
This is the order muscle fibers are recruited as exercise intensity increases
What is Type 1 → Type lla → Type lIx?
This skeletal system houses the skull, ribs, sternum, and vertebra
What is the axial skeleton
This joint allows the most range of motion and is a sphere fitting into a hole ex: shoulder
what is a ball and socket joint
This increases the size of body tissue and organs
what is hypertrophy
This lever type has the fulcrum on the left effort in the middle, and load on the right
what is the third class lever
A Rotational Force about a fixed axis
what is torque
This skeletal system houses the limbs of the body
what is the appendicular Skeleton
Due to shape at articulation that allows only movement in one plane
what is a hinge joint
This is made up of a motor neuron and all the muscle fibers it controls
What is a motor unit
The effort force of the insertion Of a muscle is what lever class
What is the third class lever?
When the quadricep contracts during knee extension, the Done acting as the lever rod is the ______
what is the tibia
This is the study of measurements and proportions of the human body, used to design equipment for different body shapes to reduce injury
what is anthropometry
calcium and ___ is stored in bones
What is PO43-
Having more muscle fibers in one motor unit results in this.
What is a greater force
_______ is magnitude of effort over magnitude of load
What is the measure of mechanical advantage
A lever with a mechanical advantage of 2 would have an effort arm of ___ and a load arm of ___
an effort arm of 4 and a load arm of 2