Chapter 11 Q & A
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Name the general senses | Pain, pressure, touch, stretch, and temperature
🗑
|
||||
| What is a fast pain fiber? | Fibers that are abundant on the skin and mucous membranes that produce a sharp, localized, stabbing-type pain at the time of injury
🗑
|
||||
| What is a slow pain fiber? | Fibers congregated on deep body organs and structures that produce a dull, aching pain
🗑
|
||||
| Identify 5 special senses | Taste, smell, hearing, equilibrium, and vision
🗑
|
||||
| What are the primary tastes? | Sweet, salty, sour, bitter, and umami
🗑
|
||||
| What are the structures of the outer ear? | The auricle (pinna) and the auditory canal
🗑
|
||||
| What are the structures of the inner ear? | Membranous labyrinth, perilymph, endolymph, semicircular canals, vestibule, cochlea, vestibular nerve, cochlear nerve, oval window, and round window
🗑
|
||||
| What are the structures of the middle ear? | The auditory ossicles (malleus, incus, and stapes), tympanic membrane (eardrum), and the eustachian tube
🗑
|
||||
| What is the function of the auricle (pinna)? | It funnels sound into the auditory canal
🗑
|
||||
| What is the function of the tympanic membrane? | It vibrates freely in response to sound waves
🗑
|
||||
| What is the function of the eustachian tube? | It equalizes pressure on both sides of the tympanic membrane
🗑
|
||||
| What is the function of the organ of Corti? | It is the hearing sense organ
🗑
|
||||
| What is the purpose of the semicircular canals? | They are crucial for the maintenance of equilibrium and balance
🗑
|
||||
| What is the 1st step in the events that bring about hearing? | Sound waves enter the ear and travel down the external auditory canal. The waves strike the tympanic membrane causing it to vibrate
🗑
|
||||
| What is the 2nd step in the events that bring about hearing? | The vibration spreads through the malleus, incus, and stapes
🗑
|
||||
| What is the 3rd step in the events that bring about hearing? | The movement of the stapes on the oval window shakes the perilymph on either side of the cochlear duct
🗑
|
||||
| What is the 4th step in the events that bring about hearing? | The ripples in the perilymph are transmitted thru the roof of the cochlear duct to the organ of Corti. This stimulates the hairs to send nerve impulses along the cochlear nerve. The auditory cortex then interprets this as sound
🗑
|
||||
| What is the final step in the events that bring about hearing? | The ripples continue through the perilymph and dissipate by striking the round window
🗑
|
||||
| What parts of the ear function to maintain balance? | The semicircular canals are primarily concerned with the speed & direction of head movements. The utricle & saccule (in the vestibule) detect the position of the head when the body is stationary & sense of acceleration when moving in a straight line
🗑
|
||||
| What is the function of the cornea? | It admits light into the eye
🗑
|
||||
| What is the function of the optic nerve? | It transmits signals to the brain
🗑
|
||||
| What is the function of the ciliary body? | It secretes aqueous humor
🗑
|
||||
| What is the function of the iris? | It adjusts the diameter of the pupil to control the amount of light entering the eye
🗑
|
||||
| What is the function of the choroid? | It supplies oxygen and nutrients to the retina and sclera
🗑
|
||||
| What is the function of the lens? | It changes shape for near and far vision
🗑
|
||||
| What are the 2 chambers of the eye? | The anterior cavity which contains aqueous humor and the posterior cavity which is filled with vitreous humor
🗑
|
||||
| What is myopia? | Nearsightedness; light rays focus in front of the retina
🗑
|
||||
| What is hyperopia? | Farsightedness; light rays focus at a point behind the retina
🗑
|
||||
| What is astigmatism? | An uneven or asymmetrical curvature of the cornea, causing light to focus unevenly; often accompanies myopia and hyperopia
🗑
|
||||
| What is presbyopia? | With age, the lens loses flexibility and focusing muscles in the eye weaken; begins between the ages of 40 & 50
🗑
|
||||
| What is the function of rods? | Located at the periphery of the retina, they are active in dim light, responsible for night vision, and cannot distinguish colors from each other
🗑
|
||||
| What is the function of cones? | Concentrated in the center of the retina, they are active in bright light, primarily responsible for sharp vision, and responsible for color vision
🗑
|
||||
| What is a middle ear infection? | It occurs primarily in children because the eustachian tube is fairly short and horizontal. It allows drainage from the nose to easily flow to the middle ear
🗑
|
||||
| What are the 2 categories of hearing loss? | Conductive and sensorineural
🗑
|
||||
| What is otosclerosis? | A conductive hearing loss that occurs when the auditory ossicles fuse together. Sometimes surgery can restore hearing
🗑
|
||||
| What is conductive hearing loss? | Fluid, impacted cerumen, or a foreign body blocks transmission of vibrations. Once underlying cause is treated, hearing returns to normal
🗑
|
||||
| What is sensorineural hearing loss? | Results from the death of hairs in the organ of Corti. Once the hairs are damaged, they never grow back, making this hearing loss permanent
🗑
|
||||
| What is glaucoma? | The canal of Schlemm becomes obstructed, aqueous humor accumulates, causing pressure within the eye to build. It can be treated with drugs or surgery but any vision loss is permanent
🗑
|
||||
| What are cataracts? | Clouding of the lens of the eye, glare, colors appear faded, and poor night vision. Common part of aging, diabetes mellitus, smoking, and prolonged exposure to sunlight
🗑
|
||||
| What is color blindness? | One or more photopigments are missing. The most common is a red-green deficit. It is an inherited condition affecting about 8% of males and 0.5% of females
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
cbooher16
Popular Anatomy sets