Muscular System Review

Which connective tissue surrounds the whole muscle?

• epimysium

• endomysium

• perimysium

Actin myofilaments are

• attached to the z disk

• are found primarily in the h zone

• are thicker than myosin myofilaments

• all of these options

Which structure provides an attachment site for calcium?

• actin

• troponin

• tropomyosin

• 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

Tags

NGSS.HS-LS1-2

Cardiac muscle is only found where? 

• Lungs
• Heart
• Kidney's 
• Liver

What are the 3 types of muscles?

• Cardiac, smooth and skeletal
• Cardiac, skeletal, prime
• Flexion, extension, smooth
• Skeletal, smooth, stringy