Activity 16 chart/laminant/model

What receptor detects pain?

Nociceptors

What receptor detects temperature variation (warmth/cold)?

What receptor detects dissolved chemicals?

What receptor detects photons?

What receptor detects pressure, stretch, vibrations?

What is a special type of mechanoreceptor, located within joints, ligaments, and muscles to specifically detect the position of the body in space?

Proprioceptor

What is a specific mechanoreceptor that detects the stretch of hollow organs and tubes?

Baroreceptors

What are the 2 types of photoreceptors?

Cones and Rods

What are free dendritic endigns?

Nociceptors and thermoreceptors

What are the types of chemoreceptors?

Taste buds and olfactory receptors

What are the types of mechanoreceptors?

Meissner’s corpuscle, pacinian corpuscle, muscle spindle, cochlear hair cells

What are the special senses of the body?

smell, taste, hearing, equilibrium, and vision

Olfactory bulb

Olfactory tract

Olfactory receptor cells (chemoreceptors)

Cribriform plate of the ethmoid bone

Olfactory neuron

Which cranial nerves are involved in taste?

Facial nerve (CN VII), glossopharyngeal nerve (CN IX), and vagus nerve (CN X)

Where are gustatory (taste) receptor cells located?

Within taste buds

Where are taste buds found?

Along the edges of papillae on the tongue surface

What are papillae?

Structures on the tongue formed by stratified squamous epithelium

Where are papillae located?

On the dorsal surface of the tongue

What type of stimuli do gustatory receptors detect?

Dissolved chemicals

Dorsum of the tongue

Papillae

Circumballate (vallate) papillae

Fungiform papillae

Filiform papillae

Tastebuds

Taste buds (along the edge of the papilla)

Taste pores

Gustatory receptor cells (chemoreceptors)›

External ear

Auricle/Pinna

External acoustic meatus/ canal

Tympanic membrane

What is included in the external ear?

Auricle/Pinna, External acoustic meatus/canal, and tympanic membrane

What is included in the middle ear?

Ear ossicles, malleus, incus, stapes, auditory (eustachian) tube

What is included in the internal ear?

Bony labyrinth, cochlea, membranous labyrinth, cochlear duct

Ear ossicles

Malleus

Incus

Stapes

Auditory (eustachian) tube

Bony labyrinth

Cochlea

membranous labyrinth

Cochlear duct

Cochlear nerve of the vestibulocochlear nerve

Vestibular duct (scala vestibuli), bony labryinth

Cochlear duct (scala media) - membranous labyrinth

Tympanic duct (scala tympani) - bony labyrinth

Vestibular membrane

Basilar membrane

Spiral organ (organ of corti)

Receptor cells (mechanoreceptors)

Tectorial membrane

Perilymph (within vestibular and tympanic duct)

Endolymph (within cochlear duct)

Osseous labyrinth

Semicircular canals

Vestibule

Membranous labyrinth

What is included in the membranous labyrinth?

Semicircular ducts, ampullae, utricle, saccule

What is included in the osseous labyrinth?

Semicircular canals, vestibule

semicircular ducts

Ampullae

Utricle

Saccule

Hair cells

Vestibular nerve (part of the vestibulocochlear nerve)

Cochlea

Vestibular duct

Cochlear duct

Tympanic duct

Vestibular membrane

Basilar membrane

Tectorial membrane

Organ of corti

Receptor hair cells

Cochlear nerve

What are extrinsic eye muscles?

External skeletal muscles that allow movement of the eyes

What are intrinsic eye muscles?

Internal smooth muscles that dilate or constrict the iris

What type of receptors are found in the eye?

Photoreceptors

Where are photoreceptors located?

In the retina

What is another name for the nervous tunic of the eye?

Retina

What are the three layers (tunics) of the eye?

Fibrous tunic, vascular tunic, and nervous tunic

What is the fibrous tunic?

The tough outer layer of the eye

What is the vascular tunic?

The middle layer of the eye containing many blood vessels

What is the nervous tunic?

The inner layer of the eye composed mainly of photoreceptors and neurons

What is included in the fibrous tunic?

Sclera, cornea

Fibrous tunic

Sclera

Cornea

What is included in the vascular tunic?

Choroid, ciliary body, iris

Vascular tunic

Choroid

Ciliary body

Iris

What is included in the nervous tunic - retina?

optic disc (blind spot), fovea (within maculae lutea)