Muscular System Test Flashcards

Front

What do you call the “shrinkage” of a muscle due to lack of use?

Back

atrophy

Front

Muscle fibers are arranged in bundles called:

Back

fascicles

Front

The intersection between the motor neuron and the muscle fiber is called the:

Back

neuromuscular junction

Front

The bacteria that causes tetanus interfere with the action of cholinesterase, this results in:

• locked muscles
• muscle weakness
• fatigue
• hearing loss

Back

locked muscles

Front

What cellular organelle provides the ATP needed for muscle activity?

Back

mitochondria

Front

Muscle fatigue and soreness is due mainly to an accumulation of: ATP, lactic acid, creatine phosphate, cholinesterase

Back

lactic acid

Front

DMD is a 'progressive' disease, which means that:

Back

it will get worse over time

Front

Identify the structure labeled 'B' in the diagram.

Back

T Tubule

Front

Identify the structure labeled 'E' in the diagram.

Back

Nucleus

Front

The connective tissue that surrounds a bundle of muscle fibers is called ________.

Back

Perimysium