Special Senses Flashcards
(27 cards)
List the 12 cranial nerves
- olfactory
- optic
- oculomotor
- trochlear
- trigeminal
- abducens
- facial
- vestibulocochlear
- glossopharngeal
- vagus
- spinal acessory
- hypoglossal
What is the function of the olfactory nerve
Smell
Describe the function of the optic nerve
Vision
What is the function of the oculomotor nerve
Eye movement
What is the function of the trochlear nerve in the eye
Inervates the superior oblique muscle
What is the function of the trigeminal nerve
Innervates the muscles of mastication and provides general sensory to the face
What is the function of the abducens muscle in the eye and which muscle does it innervate
Abducens muscle provides eye movement by inervating the lateral recuts
What is the function of the facial nerve
Innervates the anterior 2/3 of the tongue
What is the function of the vestibulocochlear nerve
Hearing and balance in the ear
What’s the function of the glossopharngeal nerve
Involved in swallowing and taste and Innervates the posterior 1/3 of the tongue
What’s the function of the vagus nerve
Wandering nerve - involved in parasympathetic nervous system
Heart and respiratory system
What is the function of the spinal accessory nerve
Innervates neck muscles including sternocleidomastoid and trapezius muscles
Describe the sclera of the eye
This is the white part of the eye ( outer layer) and is composed of fibrous and elastic tissue. This allows you to see when a person or animal is looking
Describe the structure of the pupil
Darkened whole in the middle of the iris
Describe the structure of iris
Smooth muscle structure which provides diameter of eye through 2 muscles
Name the 2 muscles which help to increase the diameter of the iris
- sphincter pupillae
- dilator pupillae
What happens in the condition of keratoconus
Thinning of the cornea causing the cone shape which causes blurred or double vision
What happens if someone has jaundice
This causes the sclera to become yellow as well as blood disorder or liver pathologies
In which gland are tears produced
Lacrimal
What is the function of the lacrimal gland
Lubricates movement
Removes debris - washed lateral to medial
Tears dark into the nose
List the bone of orbit
Palatine
Ethmoid
Lacrimal
Maxilla
Zygomatic
Sphenoid
Frontal
Describe movement of the superior recuts muscle
Elevation of eye, medial rotation and abduction
What is the function of inferior recuts
Depression of eye, addiction and lateral rotation
Describe the function of medial recuts
Addicts the eyeball
