Skittles
The muscle force generated by muscle activity is expressed in _____ (units)
Kilograms
A decrease in the muscle's ability to generate force due to either a depletion of ATP, a build up of lactic acid or oxygen debt in muscle is called?
Fatigue
Describe one way of controlling the degree of skeletal muscle contraction?
Controlling the frequency of motor neuron impulses
Contraction of ___ muscle moves one part of the body with respect to another part.
Skeletal
Sustained fusion of individual muscle twitches is known as ____.
Tetany
Define mechanical work performed by skeletal muscle
When a muscle contracts and an object is moved
GOO KHA
LOSE 200 POINTS
__ is the amount of work done per unit of time.
Power
Contraction of ___ muscle, changes the internal diameter of hollow organs.
Smooth
___ is the combination of a single motor neuron and all of the muscle fibers it controls.
Motor Unit
The strength of the electrical current generated by muscle activity is expressed in ____ (units)
mV
___ means changing strength of the muscle contraction or the extent of shortening in proportion to the load placed on the muscle by way of motor unit recruitment.
When ___ muscle contracts blood circulates, delivering nutrients to cells and removing wastes.
Cardiac
What was the hand dynamometer/dynagrip used to show?
Force generated (via grip)
The detection, amplification, and recording of changes in skin voltage produced by underlying skeletal muscle contraction ____.
Electromyography
The sequential activation of motor unit to perform a designated task is known as
Motor unit recruitment
___ is constant state of slight tension that serves to maintain the muscle in a state of readiness.
TERO BHAJE KO TAUKO
HEHEHEH
LOSE 400 POINTS
___ is a graphic recording obtained by using a dynamometer.
Dynagram
_____ is a recording of the electrical activity of muscles.
EMG
When does fatigue occur
* Depletion of ATP
* build up of inorganic phosphate/potassium
* blocking of calcium release
___ is the measurement of power.
Dynamometry
____ is an EMG where a needle electrode is inserted through the skin into the muscle whole electrical activity is to be measured.
Intramuscular EMG
Name the instrument used to measure grip force
Hand Dynamometer
____ is an EMG where the electrodes are placed on the skin overlying the muscle.
Surface EMG