Muscular System Review

Which of these is NOT a major task of the muscular system?

• Movement for your body

• Making red blood cells

• Maintaining posture

• Heat production for the body

Which of the following words means 'the ability to recoil or bounce back to the original shape'?

• Elasticity

• Extensibility

• Contractability

• Excitability

Which type of muscle(s) is/are nonstriated?

• Smooth muscle

• Cardiac muscle

• Skeletal muscle

Which type of muscle is involuntary and makes up many of your internal organs?

• Cardiac

• Gastrointestinal

• Smooth

• Skeletal

Actin and Myosin make up the sliding filament model of the muscle and are responsible for contracting activity of the muscle. What is another word for Actin and Myosin?

• Myofilaments

• Fascicle

• Sliding filaments

• Sarcomeres

A nerve that stimulates skeletal muscle is called a

• Sensory neuron

• Motor neuron

• Sensory unit

• Motor unit

What attaches muscle to bone?

• Tendons

• Fascia

• Ligaments

• Cartilage

Which two structures block the active site on an actin filament?

• z-disc & m-line

• Calcium & myosin

• troponin & tropomyosin

• actin & perimysium

Which membrane covers an individual muscle fiber?

• Endomysium

• epimysium

• perimysium

The ______ separates one sarcomere from another,

• cross bridges

• z-lines

• m-lines

• active sites