Muscular System Review

Front

Which of the following describes the organization of skeletal muscle from largest to smallest? Muscles - Fascicles - Muscle Fibers - Myofibrils - Myofilaments, Muscles - Muscle Fibers - Fascicles - Myofilaments - Myofibrils, Muscles - Muscle Fibers - Myofibrils - Myofilaments - Fascicles, Muscles - Myofibrils - Myofilaments - Muscle Fibers - Fascicles

Back

Muscles - Fascicles - Muscle Fibers - Myofibrils - Myofilaments

Front

Actin & Myosin are examples of...

Back

Myofilaments

Front

How does myosin get the energy to bind to actin during a muscle contraction?

Back

ATP

Front

How is an action potential created in a nerve cell?

Back

Ions move through ion channels

Front

What happens to an action potential once it reaches the synaptic cleft?

Back

It causes the neurotransmitter ACH to be released.

Front

When a muscle contracts, it _______

Back

gets shorter

Front

1 of the 4 main jobs of the muscular system is

Back

to give us posture

Front

What are the functions of the muscles?

Back

hold the body erect, helps generate body heat, helps blood move through the veins and food through the digestive system

Front

These are the thick filaments that pull during muscle contraction:

Back

Myosin

Front

Myofibrils are composed primarily of: Myofilaments, Fascicles, Myofibers, Muscle cells

Back

Myofilaments