NEURO 5 Flashcards
Olfactory receptors in epithelium
Bipolar neurons, CN 1
Olfactory cells
Olfactory receptors
Supporting cells
Basal cells
End of olfactory nerves
Olfactory bulb
Olfactory projections
1ary olfactory cortex in temporal lobe
Project to limbic system and hypothalamus
BYPASS thalamus
Gustatory receptors taste
Sour, sweet, bitter, salty, umami
Taste bud location
Tongue, epithelium, epiglottis, soft palate, pharynx
Taste bud cells
Sensory cells (not neurons)
Supporting cells
Basal cells
Papillae
Taste buds form here
Circumvallate papillae
Posterior V near back of throat
Fungiform papillae
Scattered all over tongue in groups of 5
Foliate papillae
Margins of tongue, go away after childhood
Filiform papillae
Roughness of tongue, sense textures of food
Taste CN
Anterior 2/3 = facial (7)
Posterior 1/3 = glossopharyngeal (9)
Throat & epiglottis = vagus (10)
Outer fibrous layer of eye
Dense collagen CT
Sclera
Cornea
Sclera
Whites of eyes, shape of eye, muscle attachments
Cornea
Main refractory aspect of eye, avascular
Intermediate vascular layer of eye
Choroid
Ciliary body
Ciliary process
Ciliary muscles
Zonular fibers
Iris
Lens
Choroid
Highly vascularized, pigmented
Ciliary body
Anterior portion
Ciliary processes
Secrete aqueous humor and vitreous humor
Zonular fibers
Oppose ciliary muscles, change lens shape
Ciliary muscle
Change tension on zonular fibers
Contain constrictor pupillae and dilator pupillae
Contraction of ciliary muscles
Zonular fibers relax, lens thickens, near vision
Relaxation of ciliary muscles
Zonular fibers constrict, lens thins, far vision
Constrictor pupillae
Constrict, circle around iris, parasympathetic innervation
Dilator pupillae
Dilate, radial around iris, sympathetic innervation
Iris
Colored part of eye, controls pupil size