Anatomy & Physiology Special Senses System Questions and Answers

Sample Questions and answers

• Which structure of the eye focuses light on the retina?
  a. Cornea
  b. Lens
  c. Pupil
  d. Iris
  Answer: b. Lens
• The rods in the retina are responsible for:
  a. Color vision
  b. Night vision
  c. Peripheral vision
  d. Focusing objects
  Answer: b. Night vision
• Which part of the ear is responsible for detecting sound vibrations?
  a. Cochlea
  b. Tympanic membrane
  c. Semicircular canals
  d. Vestibule
  Answer: b. Tympanic membrane
• The olfactory receptors are located in which part of the body?
  a. Tongue
  b. Nasal cavity
  c. Pharynx
  d. Larynx
  Answer: b. Nasal cavity
• Which of the following is NOT part of the external ear?
  a. Pinna
  b. External auditory canal
  c. Tympanic membrane
  d. Cochlea
  Answer: d. Cochlea
• What type of sensory receptor is responsible for detecting light?
  a. Mechanoreceptors
  b. Photoreceptors
  c. Chemoreceptors
  d. Thermoreceptors
  Answer: b. Photoreceptors
• The blind spot of the eye is caused by:
  a. Absence of rods and cones
  b. Overcrowding of photoreceptors
  c. Thickening of the retina
  d. Damage to the optic nerve
  Answer: a. Absence of rods and cones
• Which cranial nerve is responsible for transmitting auditory signals?
  a. Facial nerve (VII)
  b. Vestibulocochlear nerve (VIII)
  c. Trigeminal nerve (V)
  d. Glossopharyngeal nerve (IX)
  Answer: b. Vestibulocochlear nerve (VIII)
• The taste sensation “umami” is triggered by:
  a. Sodium ions
  b. Sugars
  c. Glutamate
  d. Acids
  Answer: c. Glutamate
• The semicircular canals are responsible for:
  a. Hearing
  b. Balance and equilibrium
  c. Pressure regulation
  d. Smell
  Answer: b. Balance and equilibrium
• Which region of the retina provides the sharpest vision?
  a. Optic disc
  b. Peripheral retina
  c. Fovea centralis
  d. Macula lutea
  Answer: c. Fovea centralis
• Which structure connects the middle ear to the pharynx?
  a. Cochlea
  b. Eustachian tube
  c. Ossicles
  d. Oval window
  Answer: b. Eustachian tube
• The primary function of the iris is to:
  a. Focus light on the retina
  b. Regulate the size of the pupil
  c. Detect light intensity
  d. Protect the cornea
  Answer: b. Regulate the size of the pupil
• Which photoreceptors are responsible for color vision?
  a. Rods
  b. Cones
  c. Ganglion cells
  d. Bipolar cells
  Answer: b. Cones
• The region of the brain that processes visual information is the:
  a. Parietal lobe
  b. Occipital lobe
  c. Temporal lobe
  d. Frontal lobe
  Answer: b. Occipital lobe
• Which part of the tongue is most sensitive to sweet tastes?
  a. Sides
  b. Back
  c. Tip
  d. Middle
  Answer: c. Tip
• The tympanic membrane is also known as the:
  a. Cochlear membrane
  b. Ear drum
  c. Round window
  d. Oval window
  Answer: b. Ear drum
• The fluid-filled structure responsible for hearing is the:
  a. Semicircular canals
  b. Vestibule
  c. Cochlea
  d. Eustachian tube
  Answer: c. Cochlea
• The lacrimal gland produces:
  a. Mucus
  b. Tears
  c. Saliva
  d. Cerumen
  Answer: b. Tears
• The optic chiasma is where:
  a. Light is focused
  b. The optic nerves cross
  c. Visual information is processed
  d. The retina attaches to the lens
  Answer: b. The optic nerves cross
• The utricle and saccule detect:
  a. Rotational movements
  b. Linear acceleration and gravity
  c. Sound waves
  d. Changes in temperature
  Answer: b. Linear acceleration and gravity
• The primary function of the cornea is to:
  a. Absorb light
  b. Focus incoming light
  c. Control pupil size
  d. Detect color
  Answer: b. Focus incoming light
• Which type of receptor detects taste?
  a. Chemoreceptors
  b. Mechanoreceptors
  c. Photoreceptors
  d. Thermoreceptors
  Answer: a. Chemoreceptors
• Which cranial nerve transmits information about smell?
  a. Optic nerve (II)
  b. Olfactory nerve (I)
  c. Vagus nerve (X)
  d. Trigeminal nerve (V)
  Answer: b. Olfactory nerve (I)
• The vestibular system is primarily responsible for:
  a. Smell
  b. Hearing
  c. Vision
  d. Balance
  Answer: d. Balance
• The retina contains:
  a. Only rods
  b. Only cones
  c. Both rods and cones
  d. Neither rods nor cones
  Answer: c. Both rods and cones
• The auditory ossicles include all of the following EXCEPT:
  a. Incus
  b. Stapes
  c. Malleus
  d. Cochlea
  Answer: d. Cochlea
• The ciliary body is responsible for:
  a. Producing aqueous humor
  b. Controlling the shape of the lens
  c. Both a and b
  d. Neither a nor b
  Answer: c. Both a and b
• The organ of Corti is located in the:
  a. Semicircular canals
  b. Vestibule
  c. Cochlear duct
  d. Tympanic cavity
  Answer: c. Cochlear duct
• The pigment responsible for absorbing light in the retina is called:
  a. Rhodopsin
  b. Melanin
  c. Carotene
  d. Hemoglobin
  Answer: a. Rhodopsin