Question 1

The ________ is the innermost layer of the eye and it contains photoreceptor cells (rods and cones).&#10;A) retina&#10;B) cornea&#10;C) lens&#10;D) sclera

Accepted Answer

The retina is the innermost layer of the eye and contains photoreceptor cells (rods and cones) which help in the formation of images. The cornea is the outermost layer, the lens is situated behind the iris and pupil, and the sclera is the white part of the eye that forms its outer coating.

Question 2

The role of cerumen is to ________.&#10;A) trap foreign particles that enter the external acoustic meatus&#10;B) facilitate vibration of the tympanic membrane&#10;C) detect changes in linear movement and respond to gravitational forces&#10;D) amplify sound waves

Accepted Answer

Cerumen, also known as earwax, helps to trap foreign particles and prevent them from entering the deeper parts of the ear canal. It also has antimicrobial properties, helping to protect the ear from infection.

Question 3

The structure that connects the auricle to the tympanic membrane is called the ________.&#10;A) external acoustic meatus&#10;B) lobule&#10;C) vestibule&#10;D) helix

Accepted Answer

The external acoustic meatus, commonly known as the ear canal, is the structure that connects the auricle (outer ear) to the tympanic membrane (eardrum). The other options, lobule, vestibule, and helix, are parts of the auricle.

Question 4

The role of the rod cells of the retina is to ________.&#10;A) facilitate color vision&#10;B) prevent reflection of light rays when they reach the retina&#10;C) allow an individual to view objects in sharp focus&#10;D) facilitate peripheral vision and vision in low-light conditions

Accepted Answer

Rod cells are responsible for sensitive to low levels of light and facilitate vision in low-light conditions, including peripheral vision. Color vision and sharp focus are primarily facilitated by the cone cells. Rod cells also do not prevent reflection of light rays.

Question 5

Which of the following tools is used to test visual acuity?&#10;A) Ishihara color plates&#10;B) Snellen eye chart&#10;C) astigmatism chart&#10;D) Weber test

Accepted Answer

The Snellen eye chart is used to test visual acuity by measuring the sharpness of a person's vision. It consists of letters or symbols that are arranged in decreasing size. The person being tested is asked to read the letters or symbols from a specific distance, with each eye separately and then both eyes together. The results are recorded as a fraction, with the top number representing the distance of the person from the chart and the bottom number representing the size of the letter or symbol they were able to read.

Question 6

Olfactory receptor cells,sensory receptors for olfaction,are located ________.&#10;A) in the olfactory epithelium&#10;B) in the semicircular canals&#10;C) in the cochlear duct&#10;D) in structures called papillae

Accepted Answer

Olfactory receptor cells are located in the olfactory epithelium.

Question 7

________ deafness results from damage along the neural pathway for hearing,whereas ________ deafness involves altered transmission of sound waves.&#10;A) Conductive; sensorineural&#10;B) Rinne; conductive&#10;C) Weber; sensorineural&#10;D) Sensorineural; conductive

Accepted Answer

The first blank refers to neural pathway, indicating a problem with the transmission of auditory signals from the ear to the brain, which is characteristic of sensorineural hearing loss. The second blank describes an issue with the transmission of sound waves, indicating a problem with the mechanics of the ear, which is characteristic of conductive hearing loss. Therefore, the correct choice is D, Sensorineural; conductive.

Question 8

Which of the following statements accurately summarizes the difference between static and dynamic equilibrium?&#10;A) Static equilibrium involves changes in olfaction, whereas dynamic equilibrium involves changes in gustation.&#10;B) There is no difference between static and dynamic equilibrium.&#10;C) Static equilibrium involves changes in linear movements, whereas dynamic equilibrium involves changes in angular acceleration and deceleration.&#10;D) Dynamic equilibrium involves changes in linear movements, whereas static equilibrium involves changes in angular acceleration and deceleration.

Accepted Answer

Static equilibrium involves maintaining balance and stability in a stationary position, such as standing still or holding a posture. This involves changes in linear movements, such as maintaining balance while walking on a tightrope or holding a yoga pose. Dynamic equilibrium involves maintaining balance and stability while in motion, such as when riding a bike or rollerblading. This involves changes in angular acceleration and deceleration, such as steering or changing direction while in motion.

Question 9

Which of the following explains why the smell of freshly brewed coffee is quite pungent when you enter your office,but you notice the smell less as the workday proceeds?&#10;A) equilibrium&#10;B) adaptation&#10;C) olfaction&#10;D) tonicity

Accepted Answer

This phenomenon is known as olfactory adaptation, which refers to the decrease in sensitivity to a smell after constant exposure to it. As the workday proceeds, the olfactory neurons become less responsive to the coffee smell, leading to a reduced perception of its intensity.

Question 10

The sensory receptors for gustation are called ________.&#10;A) papillae&#10;B) taste buds&#10;C) transitional cells&#10;D) basal cells

Accepted Answer

Taste buds are the sensory receptors for gustation, located primarily on the tongue but also in other parts of the oral cavity. Papillae are small bumps on the tongue that contain taste buds, but they are not the receptors themselves. Transitional cells and basal cells are types of cells found in the taste buds, but they are not the receptors either.

Question 11

Taste buds,sensory receptors for gustation,are located ________.&#10;A) in structures called papillae&#10;B) in the olfactory epithelium&#10;C) in the semicircular canals&#10;D) in the cochlear duct

Accepted Answer

The answer of Taste buds,sensory receptors for gustation,are located ________.&#10;A)...

Question 12

According to a recent test using a Snellen chart,your roommate's vision is 20/70.What does this mean?&#10;A) The results indicate that your roommate's eyesight is better than normal.&#10;B) The results are consistent with normal visual ability.&#10;C) The results indicate that objects that your roommate can see clearly at 20 feet can be seen clearly at 70 feet by a person with normal vision.&#10;D) The results indicate that objects that your roommate can see clearly at 70 feet can be seen clearly at 20 feet by a person with normal vision.

Accepted Answer

The answer of According to a recent test using a...

Question 13

During your most recent Weber test,you were able to hear the tone of the tuning fork in both ears; however,the sound was louder in the right ear.Interpret the results.&#10;A) The test results indicate sensorineural deafness.&#10;B) The test results indicate conduction deafness affecting the right ear.&#10;C) The test results indicate conduction deafness affecting the left ear.&#10;D) The test results are consistent with normal hearing.

Accepted Answer

The answer of During your most recent Weber test,you were...

Question 14

Diminished sensitivity to a sense over a period of continuous stimulation is known as ________.&#10;A) adaptation&#10;B) olfaction&#10;C) tonicity&#10;D) audition

Accepted Answer

The answer of Diminished sensitivity to a sense over a...

Question 15

The sense of smell is also known as ________.&#10;A) vision&#10;B) olfaction&#10;C) gustation&#10;D) equilibrium

Accepted Answer

The answer of The sense of smell is also known...

Question 16

Which of the following connects the olfactory bulbs to the olfactory area of the cerebrum?&#10;A) olfactory receptor cells&#10;B) supporting cells&#10;C) olfactory tracts&#10;D) olfactory glands

Accepted Answer

The answer of Which of the following connects the olfactory...

Question 17

The ________ contains the sensory receptors for hearing.&#10;A) eustachian tube&#10;B) cochlea&#10;C) ampulla&#10;D) vestibule

Accepted Answer

The answer of The ________ contains the sensory receptors for...

Question 18

The role of the accessory structures of the eye is to ________.&#10;A) focus light waves onto the retina&#10;B) prevent incoming light waves from being reflected out of the eye&#10;C) change the shape of the lens while focusing on objects that are distant or near&#10;D) protect the eye from airborne particles and dust

Accepted Answer

The answer of The role of the accessory structures of...

Question 19

The ________ focuses light onto the retina.&#10;A) choroid&#10;B) lens&#10;C) iris&#10;D) cornea

Accepted Answer

The answer of The ________ focuses light onto the retina.&#10;A)...

Question 20

The ________ of the eye contains the pigmented cells that are responsible for eye color.&#10;A) lens&#10;B) cornea&#10;C) cones&#10;D) iris

Accepted Answer

The answer of The ________ of the eye contains the...

Deck 18: Special Senses