Chapter 5 revision 1

Moves as the result of conscious thought

• voluntary muscles
• involuntary muscles

Contracts without conscious thought

• voluntary muscles
• involuntary muscles

Example for involuntary muscles action

• running
• blinking
• jumping
• chewing

Example for voluntary muscles action

• breathing
• walking
• heart beating
• blinking

a thin piece of tissue

• eardrum
• ear canal
• cochlea
• auditory nerve

delivers message to the brain

• inner ear
• cochlea
• auditory nerve
• outer ear

where two bones bend

• joint
• tendon
• ligament

The colored part of the eye is the

• iris
• pupil
• retina
• cornea

The clear front surface of the eye is the

• iris
• pupil
• retina
• cornea

looks like a black circle in the center of the eye

• iris
• pupil
• retina
• cornea