Please enable JavaScript.
Coggle requires JavaScript to display documents.
Cranial nerves - Coggle Diagram
Cranial nerves
- origi frm the retina transmits impulses frm retina to the visual cortex(occipital lobe)
nucleus
function
branches
supply
clinical
- Field defects associated with
lesion of visual pathway.
-
-
- The optic nerve is not a nerve in the strict sense as there is no
neurolemmal sheath. It is actually a tract.It cannot regenerate, if it is
cut.
• Developmentally, the optic nerve and the retina are a direct
prolongation of the brain.
Clinical
Most imp
- facial nerve n areas of lesion
- eye n field of vision changes
-
-
- Olfactory nerve - Sensory
nucleus
function
branches
supply
clinical
anosmia
- absence of the sense of smell.
can be
-
progressive
- 1 more item...
congenital
- 1 more item...
-
examination
- ask if hav noticed changes in taste/smell
- test each nostril by identifying the smell with closed eyes
-eg.peppermint.coffee
-
- does not originate frm a cranial nerve nucleus
- originates frm olfactory bulb(loca in the forebrain & controls olfaction
- bipolar neurons
- serves as both receptors n 1st neurons in the olfactory pathway
- Ocularmotor nerve - Motor
nuclei
- general somatic efferent (motor) nuclei
- located in the upper part of
the midbrain
@ the level of the superior colliculus
function
branches
supply
- superior rectus
- medial rectus
- inferior rectus
- inferior oblique
- & levator palpebrae
superious muscle
-
-
neucleus
- is located in the
lower part of the midbrain
at the level of inferior colliculus
-
- general somatic
efferent (motor) nuclei
-
nucleus
-
- general somatic
efferent (motor) nuclei
-
- Vestibulococlear nerve - Sensory
-
- Glossopharyngeal nerve - Both
-
- Spinal Accessory nerve - Motor
-
-
nucleus
- general somatic
efferent (motor) nuclei
situated near the midline n below the hypoglossal trigone (triangle)
in the floor of 4th ventricle of upper medulla
-
-
-
-
- Olfactory nerve - Sensory
- Optic nerve - Sensory
- Ocularmotor nerve - Motor
- Trochlear nerve - Motor
- Trigeminal nerve - Both
- Abducent nerve - Motor
- Facial nerve - Both
- Vestibulococlear nerve - Sensory
- Glossopharyngeal nerve - Both
- Vagus nerve - Both
- Spinal Accessory nerve - Motor
- Hypoglossal - Motor
- Oh Oh Oh,Try Try Again, Four Very Good Virgins Are Hot
- Oh Oh Oh, To Touch And Feel Virgin Girls Vag Aah Heaven
- Some Say Money Matters But My Brother Says Big Brains Matter More