Anat 100 Peripheral Nervous System and Sense Organs Review

How many pairs of cranial nerves are there in the peripheral nervous system?

• 10

• 12

• 15

• 20

Which section of the peripheral nervous system controls involuntary impulse to the smooth muscle, cardiac muscle, and the glands of the body?

• Parasympathetic nervous system

• Sympathetic nervous system

• Autonomic nervous system

• Somatic nervous system

Which part of the autonomic nervous system is responsible for speeding up the body's functions (fight or flight response)?

• Autonomic nervous system

• Somatic nervous system

• Parasympathetic nervous system

• Sympathetic nervous system

What is the function of the canal of Schlemm in the eye?

• To focus light on the retina

• To control pupil dilation

• To drain fluid from the eye

• To produce tears

Which part of the ear is associated with our balance?

• Outer ear

• Middle ear

• Inner ear

• Tympanic membrane

What is the function of the eustachian tube in the middle ear?

• To collect sound waves

• To protect the eardrum

• To equalize pressure

• To translate sound vibrations

Which part of the ear translates sound vibrations into nerve impulses that are sent to the brain?

• Semi-circular canals

• Tympanic membrane

• Middle ear

• Cochlea

What happens when the fluid in the semi-circular canals of the inner ear moves?

• It helps in hearing

• It causes dizziness

• It protects the eardrum

• It translates sound vibrations

Which part of the eye is responsible for bending light rays so they focus on the retina?

• Cornea

• Pupil

• Iris

• Lens

What is the function of the optic nerve in the eye?

• To produce tears

• To control pupil dilation

• To send messages to the brain

• To focus light on the retina