special senses Flashcards
The area of greatest visual acuity on the surface of the retina is the…
pupil
iris
fovea
optic disc
choroid
fovea
Nerve impulses from visual stimuli are integrated in which of the following areas of the
brain?
Occipital lobe
Cross
Frontal lobe
Basal membrane
Primary motor cortex
Auditory cortex
occipital lobe
Which cranial nerve controls contraction of the circular smooth muscles of the iris?
Glossopharyngeal
Facial
Hypoglossal
Abducens
Oculomotor
Oculomotor
Which structure in the eye contains photoreceptors?
retina
The pupil is the hole in the centre of the…
iris
Which secretion is produced by the lacrimal gland?
tears
Malleus, incus and stapes are small bones in the…
middle ear
which structure allows pressure in the middle ear to be equalised with atmospheric pressure?
Eustachian (auditory) tube
Which of the following fluids is contained within the cochlear?
Water
Perilymph
Blood
Cross
Plasma
Cerebrospinal fluid
Perilymph
Damage to the semicircular canals of the ear will affect what?
balance
