Leg Muscles
Actions of Muscles
Muscle Cell Structure
Skeletal Muscle
Smooth Muscles
100

How many muscles make up the Quadriceps?

Four 

100
The Vastus Medius, Vastus Lateralus, and the Vastus intermedius produce what action?

Knee Extension 

100

Tendons attach bones to this structure.

Muscles

100

Skeletal muscles have this type of contraction.

Voluntary

100

Smooth muscles have this type of contraction.

Involuntary

200
How many muscles make up the hamstrings?

Three

200

The Rectus Femoris produces what action?

Knee Extension and Hip Flexion

200

Bundles of muscle fibers create this structure.

Fascicles

200

What are some examples of skeletal muscles?

Quads, hamstrings, biceps, triceps, etc.

200

What are some examples of smooth muscles?

Blood vessel lining, GI tract, esophagus, visceral organs

300

What are the names of the quadriceps muscles?

Vastus Lateralis, Vastus Medius, Vastus Intermedius, Rectus Femoris

300

The Gluteus Maximus produces what action?

Hip Extension 

300

Bundles of myofibrils create this structure.

Muscles Fibers

300

True or False - These muscles are striated in appearance.

True

300

True or False - These muscles are striated in appearance.

FALSE

400

What are the names of the hamstring muscles?

Semimembranosis, Semitendinosis, Biceps Femoris

400

The Psoas Major produces what action?

Hip Flexion

400

These are THICK myofilaments found in the myofibrils.

Myosin

400
What happens to the muscle length during a concentric contraction?

Shortens

400

What shape are these cells characteristically known for?

Spindle-Shaped

500

What is the name of the muscles attached to the tibia?

Tibialis Anterior 

500

The Bicep Femoris produces what action?

Knee Flexion 

500

These are THIN myofilaments found in the myofibrils.

Actin

500

What happens to the muscle length during an eccentric contraction?

Lengthens

500

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The Decatur Lady Eagles