Muscles

Skeletal muscles always work _____.

• in groups
• in pairs
• singly
• none of the above

A ______________________ attach bones to each other at joints.

• Ligament
• Bone
• Joint
• Cell

A ______ is a strong connective tissue that attaches muscle to bone.

• Tendon
• Ligament
• Cartilage

The type of muscle contraction where the muscle tenses but does not shorten.  

• Isometric
• Isotonic
• Contraction
• relaxation

When a muscle shortens under tension, it is called_______

• isotonic eccentric contraction
• isotonic concentric contraction
• isometric concentric contraction
• isometric eccentric contraction

As the athlete lowers the weights, his biceps undergo-

• isometric concentric contraction
• isotonic eccentric contraction
• isometric contraction

What type of contraction is happening here??

• isostabilize

• isokinetic

• isotonic

• isometric

During the upward phase (pressing) which muscle is undergoing concentric contraction?

• biceps
• triceps
• abdominals
• quads

During the downward phase of the squat, which muscle is undergoing eccentric contraction?

• quads
• hamstrings
• abdominals
• shoulders

Skeletal muscles are attached to the _________.

• Stomach
• Lungs
• Bones
• Involuntary Muscles