Special senses Flashcards
Which taste paplillae are Cylindrical, largest, least in number, bitter receptors, 8-12 V shaped form and anterior to the sulcus terminalis
Circum “Vallate”
Taste papillae project from where
the tongue where taste buds are embedded
which taste papillae are mushroom shaped, most numerous taste receptors and on the tip of the tongue
Fungiform
which taste papillae are posterior roof/mouth lateral margins
Follate
which taste papillae are thread-like, sensitive to touch (no taste though)
Filiform
what is the nerve supply to the anterior 2/3 of the tongue
CN VII to the chorda tympani to the pterygopalatine to the solitary tract and nucleus
what is the nerve supply to the posterior 1/3 of the tongue
CN IX
what can one taste on the anterior 2/3 of the tongue
Sweet, Salty, Sour
what can one taste on the posterior 1/3 of the tongue
Bitter
What is the nerve supply of the epiglottis and larynx
CN X (Bitter)
The foramen caecum is what
Embryonic thyroid diverticulum (dorsal depression of tongue)
The olfactory bulb is where
the limbic area
what does the olfactory bulb contain
granular, mitral and tufted cells and a glomerulus
what is the nerve supply and path of olfaction
CN I to the cribriform plate of ethmoid bone to the lateral olfactory stria to the uncus or medial olfactory stria to the subcallosal gyrus
what is the main chemoreceptor for olfaction
Pseudo-stratified columnar epithelium on the upper surface of the superior concha
the retina develops from what
ectoderm
the sclera is derived from what
dura
the retinal cells include
Amacrine, bipolar, ganglion, horizontal, and pigments, rods and cones (rhodopsin)
what is the nerve supply and path of the optic nerve
Retina to the optic nerve to the optic chiasm to the optic tract to the lateral nucleus to the optic radiation to the calcarine fissure of the occipital lobe
In the retina what is the fovea centralis
center of the macula lutea which provides greates acuity and only contains cones
in the retina the optic disc is where what happens
the optic nerve and vessels attach to the eye
where is the eyes blind spot
on the optic disc
ciliary muscles control what
lens shape
what is the nerve supply and pathway for hearing
spiral ganglion to cochlear nerve to ventral then dorsal cochlear nucleus to lateral lemniscus to inferior colliculus to medial geniculate to Temporal Lobe “LIM”
