Phases of Muscular Contraction
Excitation, Excitation-contraction coupling, Contraction, and Relaxation describe this activity.
What are the 4 phases of muscular contraction?
Isotonic concentric, Isotonic eccentric, and Isometric.
What are the three main types of skeletal muscle contractions?
These widely known agents are used to boost muscle mass and increase power output.
What are Anabolic steroids?
This can be caused by extreme exercise leading to muscle fiber break down and can lead to acute kidney injury.
What is Rhabdomyolysis?
Intense muscle activity can result in this.
What is oxygen debt?
The 1st step in this phase is when Ca++ binds to troponin.
What is Contraction?
A brief, single contraction of a muscle fiber in response to one action potential.
What is a twitch?
This occurs when a muscle can no longer contract in response to signals from the nervous system.
What is Muscle fatigue?
This disease is a toxin-induced abnormal state of contraction.
What is Tetanus disease (aka lockjaw)?
An endogenous factor in the form of a genetic disorder.
What is Muscular dystrophy?
In this Phase, the ACh molecules diffuse across the synapse of the NMJ and bind to ACh receptors located within the sarcolemma on the other side of the synapse.
What is the Excitation-contraction coupling phase?
Lowering into a squat is an example of this contraction.
What is isotonic eccentric contraction.
This supplement provides quick bursts of ATP to muscles in the initial stages of contraction .
What is creatine phosphate?
This toxin acts at the NMJ and prevents vesicles filled with ACh from docking at the terminal membrane.
What is the Botulinum toxin?
This regulatory protein interacts with calcium during contraction phase.
What is Troponin?
This phase happens when a muscle runs out of ATP and becomes fatigued.
What is the Relaxation phase?
A biceps curl is an example of this contraction.
What is isotonic concentric contraction?
This type of exercise can increase the amount of myoglobin in a cell.
What is Endurance exercise?
This occurs when a muscle cannot contract, and spastic paralysis occurs when a muscle cannot relax.
What is flaccid paralysis?
This process is characterized by true additive summation that occurs when another action potential fires before complete relaxation occurs
What is incomplete tetanus?
In this phase ACh binds to receptors on the sarcolemma, causing depolarization and an action potential across the muscle fiber membrane.
What is The Excitation Phase?
A plank is an example of this contraction.
What is isometric contraction?
This type of exercise causes you to get swole (hypertrophy)
What is Resistance exercise?
This irreversible age related condition leads loss of muscle mass, strength, and function in older adults.
What is sarcopenia?
This disorder mistakenly targets and destroys nAChR.
What is myasthenia gravis?