DEFINITIONS Flashcards
Joint
1.1.7
A joint occurs where two or more bones articulate
Origin
Insertion
1.2.4
An origin is the attachment of a muscle tendon to a stationary bone
An insertion is the attachment of a muscle tendon to a moveable bone
Tidal Volume (TV)
2.1.3
Volume of air inhaled and exhaled in any one breath
Total Lung Capacity (TLC)
2.1.3
Volume of air in lungs after maximum inhalation
Pulmonary Ventilation (PV)
2.1.3
Inflow and outflow of air between the atmosphere and lungs
(a.k.a breathing)
Expiratory Reserve Volume (ERV)
2.1.3
Volume of air in excess of tidal volume that can be exhaled forcibly
Inspiratory Reserve Volume (IRV)
2.1.3
Additional inspired air over and above tidal volume
Residual Volume (RV)
2.1.3
Volume of air still contained in lungs after maximal exhalation
Vital Capacity (VC)
2.1.3
Maximum volume of air that can be exhaled after a maximum inhalation
Systolic Blood Pressure
2.2.9
The force exerted by blood on arterial walls during ventricular contraction
Diastolic Blood Pressure
The force exerted by blood on the arterial walls during ventricular relaxation
Cell Respiration
Controlled release of energy in the form of adenosine triphosphate (ATP) from organic compounds in cells
Force
4.3.1
Force is a push or pull acting upon an object. It’s a vector quantity, meaning it has both magnitude and direction.
Speed
4.3.1
Speed is the rate of movement, measured as distance travelled per unit time, and is a scalar quantity.
Velocity
4.3.1
Velocity, a vector quantity, is the rate of change of an object’s position, considering its direction.
Acceleration
4.3.1
Acceleration is the rate at which an object’s velocity changes, and it’s a vector quantity.
Momentum
4.3.1
Momentum, a product of an object’s mass and velocity, is a measure of the quantity of motion an object has.
Impulse
4.3.1
Impulse is the change in an object’s momentum, calculated as the product of force and the time over which it’s applied.
Displacement
4.3.1
Displacement refers to the change in position of an object in a specific direction, a vector quantity.
Centre of mass
4.3.3
For a uniform, symmetrical object, the COM is at the geometric centre.
In humans, however, it varies with body position.
Newton’s First Law of Motion
4.3.7
Inertia
An object will not change its motion unless an unbalanced force acts upon it
Newton’s Second Law of Motion
4.3.7
F = ma
The force on an object is equal to its mass times its acceleration
Newton’s Third Law of Motion
4.3.7
Action & Reaction
When two objects interact, they apply forces to each other of equal magnitude and opposite direction
Skill
5.1.1
Consistent production of goal-oriented movements, learned to a specific task
