Muscular System

Which two filaments in muscle tissue slide together

during contraction?

• Keratin and serotonin

• Myofibrils and motor end plates
  

• Actin and myosin

• Tendons and

  skeletal fibres

Which one of the following causes muscle fatigue when

it becomes insufficient?

• Carbon dioxide

• Lactic acid

• Oxygen

• Nitrogen

Which one of the following consists of white,

strong – almost inelastic – fibrous bands, and connects muscle to bone?

• Tendons

• Ligaments

• Muscle sheath

• Areolar tissue

Which one of the following describes muscle tone?

• Slight degree of contraction by some fibres, as others are relaxing

• A lessening of tension on the muscle fibres

• Increased stimulation of muscle fibres

• Decreased fibres contracting to maintain posture

Which one of the following types of muscle tissue

is automatic?

• Striated

• Skeletal

• Voluntary

• Smooth

How many muscles are there in the body?

• 350

• 450

• 550

• 650

When a muscle is cold, chemical reactions within

the muscle slow down:

• True

• False

Which muscle tissue consists of bundles of fibres,

is striped, enclosed in a sheath and is under our conscious control?

• Smooth

• Cardiac

• Striated

• Involuntary

Ligaments are made up of white, fibrous, connective

tissue and connect muscle to bone:

• True

• False

Which one of the following is the end of a muscle

that is usually ‘fixed’ during muscle action?

• Origin

• Attachment

• Belly

• Insertion