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Sense Organs
Chapter 11
| Question | Answer |
|---|---|
| Scattered throughout our body are __________________ | Sensory receptors |
| React to chemical | Chemoreceptors |
| pressure stretch vibration | Mechanoreceptors |
| temperature | Thermoreceptors |
| Pain | Mociceptors |
| Light | Photoreceptors |
| Abundant in the skin and mucous membranes | Fast pain fibers |
| Deep Body Organs | Slow pain fibers |
| Large papillae found on the rear of the tongue | Vallate papillae |
| Form Ridges at the sides of the tongue | Foliate Papillae |
| Thread-like papillae that contain no taste buds | Filiform papillae |
| concentrated at the tip and sides of tongue | fungiform papillae |
| Olfaction | Sense of smell |
| Incoming odor molecules bind to cilia | olfactory receptor cells |
| stimulates an impulse along nerve fibers | nasal epithelium |
| neurons leave the nasal cavity through pores in the _______________________ | Ethmoid bone |
| Visible part of ear | Auricle (pinna) |
| leads through the temporal bone into the eardrum | auditory canal |
| Opening of the auditory canal to the outside of the body | external acoustic meatus |
| Malleus | Hammer |
| Incus | Anvil |
| Stapes | Stirrup |
| Typanic membrane AKA ___________ | Eardrum |
| vibrates freely in response to sound wave | Typanic membrane (eardrum) |
| Ossicles | Middle ear |
| structures are crucial for the maintenance of equilibrium | Semicircular canals |
| Entrance to the labyrinths | Vestibule |
| Snail like structure | Cochlea |
| Triangular duct AKA __________ | Cochlear Duct |
| Hearing sense organ | Organ of corti |
| within the temporal bone contains ______________________ | The inner ear |
| Fluid between 2 labyrinths | Perilymph |
| _______________ Occupies the inside of the membranous labyrinth | Endolymph |
| Three separate structures from the bony lambyrinth | Semicircular, vestibule, cochlea |
| Vibration spreads through the malleus, the ________ and the Stapes | Incus |
| Anything that interferes with the transmission of vibrations to the inner ear | conductive hearing loss |
| Death of hair cells in the organ of Corti | Semsoromeiral hearing loss |
| Palpebral fissure | Opening of the eyelids |
| Palpebrae | Eyelids |
| Blufer | Eyelid |
| hairs along the edge of eyelids | Eyelashes |
| mucous membrane that lines the inner surface of eyelid | conjuctiva |
| Thickened area at the edge of the eye | Tarsal gland |
| small glands the secrete tears | lacrimal gland |
| passageway that carries tears though nasal cavity | nasolacrimal duct |
| Study of the eye | Ophthamology |
| Tiny pore which tears drain | lacrimal punctum |
| Tear ducts AKA ______________ | Lacrimal apparatus |
| Consisting of sclera and cornea | Fibrous outer layer |
| Consisting of choroid, ciliary body and iris | Vascular middle layer |
| consisting or retina, optic nerve, and blood vessels | Neural inner layer |
| Formed from dense connective tissue | Sclera |
| Thin layer of light sensitive cells | Retina |
| Cranial nerve II | optic nerve |
| Exiting the posterior of the eyeball is ________________ | Optic nerve |
| Transparent extension of the sclera | Cornea |
| Ring of colored muscle | Iris |
| Central opening of the iris | Pupil |
| controls the amount of light that enters the eye | Pupil |
| Thickened extension of the choroid | Ciliary body |
| highly vascular layer of tissue | Choroid |
| Supplies oxygen and nutrients to the retina and sclera | Choroid |
| Inside the macula lutea is a depression called ________ | Fovea Centralis |
| Medial to the macula lutea is the ________________ | Optic disc |
| Rods and cones | Photoreceptors |
| To look through the pupil to back of eye | ophthalmoscope |
| Space between the cornea and lens | Anterior cavity |
| Clear watery fluid | Aqueous humor |
| Transparent disc of tissue just behind pupil | Lens |
| changes shape for near and for vision | lens |
| larger cavity lying posterior to the lens | posterior cavity |
| jelly like substance | VITREOUS HUMOR |
| CANAL OF SCHLEMM | BLOOD VESSEL |
| BENDING OF LIGHT RAYS | REFRACTION |
| LINES UP THE VISUAL AXIS OF EACH EYE TO THE OBJECT | CONVERGENCE |
| DOUBLE VISION AKA ____________ | DIPLOPIA |
| Normal Vision | Emmetropia |
| Nearsightedness | Myopia |
| farsightedness | hyperopia |
| uneven curvature of the cornea | astigmatism |
| loosing ability to change shape of lens | presbyopia |
| Shapness of visual perception | visual acuity |
| The diminishing of a sensation that occurs after continuous exposure to a stimulus | Adptation |
| Drug used to relieve pain | analgesic |
| clear watery fluid that fills the anterior cavity of eye | aqueous humor |
| complicated system of passageways within temporal bone contains inner ear | bony labyrinth |
| sense of taste | gustation |
| spot where nerve fibers leave the retina | optic disc |
| Muscle that encircles the pupil | pupillary constrictor |
| looks like spokes of a wheel | pupillary dilator |
| A lesion on the brains occipital lobe can cause _____________ | Blindness |
| The "C'' in cones represents | Color |
| Nociceptors are receptors that respond to _______________________ | Pain from tissue damage |
| true source of pain can be difficult to identify because | sensory impulses from the different area of the body often travel to the brain on the same pathway |
| LINES THE INSIDE OF THE BONY LABYRINTH | MEMBRANOUS LABYRINTH |
| CENTER POINT OF THE RETINA | MACULA LUTEA |
| HEARING SENSE ORGAN | ORGAN OF CORTI |
| PHOTORECEPTORS IN THE RETINA ACTIVE IN DIM LIGHT | RODS |
| SCLERA | OUTERMOST LAYER OF THE EYE |
| VITREOUS HUMOR | JELLY-LIKE SUBSTANCE THAT FILLS POSTIERIOR CAVITY OF THE EYE |
Created by:
Stacey Mayo
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