Sliding Filaments
Muscle Tissue Qualities
Conditions
Action Potentials and Energy Production
Grab Bag
100

This large molecule protein is responsible for the elasticity and extensibility of the myofibrils as well as for anchoring Myosin to the M line and Actin to the Z disc.

Titin

100

The ability of muscle tissue to shorten and generate force

Contractility

100
A reduction in the size of a muscle cell due to loss of myofibrils.

Atrophy

100

The chemical contained in the synaptic end bulb of the neuron at the neuromuscular junction.

Acetylcholine

100

This ion is released by the Sarcoplasmic Reticulum during an action potential and who's presence is responsible for binding to Troponin to reveal Myosin-binding sites.,

Ca2+ (Calcium)

200

This myofibril is shaped like twisted golf clubs or hooks, contains myosin which helps to better utilize ATP and is known as the Thick Filament.

Myosin

200

Stretching without damage 

Extensibility

200

In the past the diagnostic criteria included the presence of 18 specific tender points, but nowadays is diagnosed via a process of elimination. Affects more women than men.

Fibromyalgia

200

After receiving an Action Potential, it travels down these structures to the sarcomere, carrying the AP down into the cell.

T Tubules

200

In a motor unit, a single motor neuron can innervate about how many muscle cells, causing them all to contract in unison?

~150

300

This myofibril is anchored to the Z-disc, and twists into a helix shape. This protein also is the one that moves twoard the M line during contraction.

Actin

300

After being stretched out, this property of muscle tissue is the ability to return to original shape.

Elasticity

300

Seen in patients who suffer a stroke, muscular dystrophy, rheumatoid arthritis, paralysis, and burns, it is an abnormal joint condition causing abnormal flexure and fixation of the joints.

Contracture

300

This form of energy production is used in short bursts of work, and the principal chemical is made in the liver, kidneys, and pancreas, as well as being found in certain foods. eg. Milk, Meats, and Fish.

Creatine Phosphate

300

This type of muscular contraction is a subsect of Isotonic contraction and involves the muscle lengthening while maintaining force and movement.

Eccentric Contractions

400

This myofibril covers up myosin-binding sites in relaxed muscle.

Tropomyosin

400

This property is present not just muscle tissue but also nervous tissue, involving voltage differentials to transmit information.

Excitability

400

This genetic disorder is an umbrella term for a group of conditions that all result in the atrophy of skeletal muscles. It's often caused by a defective or missing protein, such as in the Duchenne variety that is missing Dystrophin.

Muscular Dystrophy

400

When creatine is depleted, the type of respiration being done doesn't require Oxygen to be carried out, and involves turning Glucose into Pyruvic acid, and then further into this burning acid.

Lactic Acid
400

This is an involuntary twitching of muscles normally under voluntary control - normally structures such as the eyelid, or facial muscles.

Tic

500

The area that the thick and thin filaments overlap produce these visible structures that are indicative of skeletal and cardiac muscle.

Striations

500

This involuntary quality of muscle functions as a pace maker in cardiac tissue and allows a cycle of beating and relaxation. 

Autorhythmic 

500

This muscular condition is indicated by the presence of trigger points in muscle and where muscle and fascia meet. While it used to be thought to be directly related to Fibromyalgia is now considered a separate condition

Myofascial Pain Syndrome

500

This term is used to describe when a muscle is being continually stimulated (~80-100 times/second) and results in a sustained contraction that has no relaxation between stimuli and individual twitches can't be detected.

(Fused) Tetanus

500

These sensory organs are found between tendons and muscle tissue and are responsible for guarding and warning against excess tension & force.

(Golgi) Tendon Organs

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