Intro to muscular system quiz

Which connective tissue surrounds fasicles?

• epimysium

• endomysium

• perimysium

Which connective tissue surrounds the whole muscle?

• epimysium

• endomysium

• perimysium

Which connective tissue surrounds individual muscle fibers?

• epimysium

• endomysium

• perimysium

Which structure provides an attachment site for calcium?

• actin

• troponin

• myosin

• m-line

Skeletal muscles...

• Require energy in order to contract

• Require energy in order to relax

• Relax when calcium ions are transported into the sarcoplasmic reticulum

• All of these

Which type of muscle cell is striated, voluntary and has multiple nuclei located at the periphery?

• Cardiac

• Smooth

• Skeletal

Which type of muscle cell has one nucleus, is striated and has intercalated disks?

• Skeletal

• Cardiac

• Smooth

Which of the following muscle cells are not striated, involuntary, and have one nucleus per cell?

• Skeletal

• Cardiac

• Smooth

Which of the following puts the structures of the muscle in order from largest to smallest?

• Whole muscle, muscle fiber, actin & myosin, myofibril, muscle fasicle

• Whole muscle, muscle fasicle, muscle fiber, myofibril, actin & myosin

• Whole muscle, muscle fiber, muscle fasicle, myofibril, actin & myosin

• Whole muscle, muscle fasicle, muscle fiber, actin & myosin, myofibril

What starts a muscle contraction?

• Release of Calcium Ions

• Attachment of Myosin-Heads

• An Action Potential

• Release of ADP