Question 1

Which of the following structures would be impacted by a bacterial infection of the inner ear?

Accepted Answer

A) semicircular canal,cochlear nerve,malleus,and vestibular nerve 
B) semicircular canal,tympanic membrane,ear lobe,and vestibular nerve 
C) auditory canal,cochlear nerve,malleus,and vestibular nerve 
D) pinna,stapes,vestibule,and cochlear nerve 
A) semicircular canal,cochlear nerve,malleus,and vestibular nerve 
B) semicircular canal,tympanic membrane,ear lobe,and vestibular nerve 
C) auditory canal,cochlear nerve,malleus,and vestibular nerve 
D) pinna,stapes,vestibule,and cochlear nerve

Question 2

The organ of Corti consists of the

Accepted Answer

A) hammer,anvil,and stirrup. 
B) eardrum,round window,and oval window. 
C) hair cells and tectorial membrane. 
D) saccule,utricle,and cochlea. 
E) cochlea and auditory nerve. 
A) hammer,anvil,and stirrup. 
B) eardrum,round window,and oval window. 
C) hair cells and tectorial membrane. 
D) saccule,utricle,and cochlea. 
E) cochlea and auditory nerve.

Question 3

The _____ of the retina,which is responsible for acute vision,has densely packed cone cells.

Accepted Answer

A) tectorial membrane 
B) otolith 
C) fovea centralis 
D) blind spot 
E) ampulla 
A) tectorial membrane 
B) otolith 
C) fovea centralis 
D) blind spot 
E) ampulla

Question 4

From what you currently know,in a spacecraft at a point of weightlessness,which effect is most likely?

Accepted Answer

A) Rotational equilibrium would be lacking and you could not detect head movement. 
B) Gravitational equilibrium would be altered since the otoliths would not be pulled down by gravity. 
C) Without gravity,there would be no vertigo. 
D) All balance systems would work similar to being on Earth with normal gravity. 
E) There would be absolutely no sense of balance signals without gravity. 
A) Rotational equilibrium would be lacking and you could not detect head movement. 
B) Gravitational equilibrium would be altered since the otoliths would not be pulled down by gravity. 
C) Without gravity,there would be no vertigo. 
D) All balance systems would work similar to being on Earth with normal gravity. 
E) There would be absolutely no sense of balance signals without gravity.

Question 5

An individual who works in construction and is exposed to years of loud noises,below 75 decibels,will most likely develop a decease in hearing function.The structures that are damaged are the ______________.

Accepted Answer

A) stereocilia of the spiral organ 
B) organ of Corti 
C) auditory canal 
D) tympanic membrane 
E) round window 
A) stereocilia of the spiral organ 
B) organ of Corti 
C) auditory canal 
D) tympanic membrane 
E) round window

Question 6

Which of the following statements about the process of hearing is true?

Accepted Answer

A) Hearing is not dependent on the inner ear. 
B) All parts of the organ of Corti hear all ranges of sound. 
C) Loud music cannot damage your ears. 
D) Hearing is dependent on mechanical pressure. 
E) Sound is similar to light insofar as it is transmitted through the vacuum of space. 
A) Hearing is not dependent on the inner ear. 
B) All parts of the organ of Corti hear all ranges of sound. 
C) Loud music cannot damage your ears. 
D) Hearing is dependent on mechanical pressure. 
E) Sound is similar to light insofar as it is transmitted through the vacuum of space.

Question 7

What kind of receptors are involved in hearing?

Accepted Answer

A) chemoreceptors 
B) photoreceptors 
C) pain receptors 
D) mechanoreceptors 
E) interoceptors 
A) chemoreceptors 
B) photoreceptors 
C) pain receptors 
D) mechanoreceptors 
E) interoceptors

Question 8

Which of the following best describes sensory transduction?

Accepted Answer

A) The conversion of a stimulus into a nerve impulse by using a receptor. 
B) The conversion of a nerve impulse into a stimulus by using a receptor. 
C) The detection of an environmental stimulus by a nerve receptor. 
D) The analysis of a nerve impulse by the brain. 
A) The conversion of a stimulus into a nerve impulse by using a receptor. 
B) The conversion of a nerve impulse into a stimulus by using a receptor. 
C) The detection of an environmental stimulus by a nerve receptor. 
D) The analysis of a nerve impulse by the brain.

Question 9

At night,we see primarily black and white and shades of gray,except near lights where some color is still evident.This is outward evidence of what internal anatomy?

Accepted Answer

A) There are more cones than rods and cones are very sensitive to light. 
B) Cones detect the color of an object,and are activated by bright light. 
C) The retina has a circadian rhythm. 
D) The lens filters differentially the many wavelengths of light. 
E) The vitreous humor filters much light,and daytime intensity is necessary to get colored light through to the retina. 
A) There are more cones than rods and cones are very sensitive to light. 
B) Cones detect the color of an object,and are activated by bright light. 
C) The retina has a circadian rhythm. 
D) The lens filters differentially the many wavelengths of light. 
E) The vitreous humor filters much light,and daytime intensity is necessary to get colored light through to the retina.

Question 10

What is the aqueous humor?

Accepted Answer

A) one of the fluids in the inner ear 
B) the fluid that surrounds the ossicles of the middle ear 
C) the fluid in the eye between the cornea and the lens 
D) the fluid in the eye between the retina and the lens 
E) the gel-like material in a cupula of a mechanoreceptor 
A) one of the fluids in the inner ear 
B) the fluid that surrounds the ossicles of the middle ear 
C) the fluid in the eye between the cornea and the lens 
D) the fluid in the eye between the retina and the lens 
E) the gel-like material in a cupula of a mechanoreceptor

Question 11

Which of the following statements about photoreceptors is NOT true?

Accepted Answer

A) Image-forming eyes are found only in vertebrates. 
B) Photoreceptors differ in complexity in different kinds of animals. 
C) Eyespots in planaria allow the direction of light to be determined. 
D) The simplest photoreceptors only recognize the presence and intensity of light. 
E) A compound eye as seen in insects has many different visual units,each containing a lens. 
A) Image-forming eyes are found only in vertebrates. 
B) Photoreceptors differ in complexity in different kinds of animals. 
C) Eyespots in planaria allow the direction of light to be determined. 
D) The simplest photoreceptors only recognize the presence and intensity of light. 
E) A compound eye as seen in insects has many different visual units,each containing a lens.

Question 12

Which statement most accurately describes how we interpret the sensation of taste?

Accepted Answer

A) The taste buds contain microvilli that project into the taste pore.The molecules bind to receptor proteins located on the microvilli which send a nerve impulse to the brain for interpretation. 
B) The taste buds contain receptor proteins that are located on the tongue.The molecules bind to receptor proteins which send a nerve impulse to the brain for interpretation. 
C) The taste buds contain microvilli that project into the taste pore.The molecules bind to receptor proteins located on the microvilli which send a nerve impulse to the spinal cord for interpretation. 
D) The tongue moves molecules into the mouth so that the sinuses can detect the various scents.This information is then sent to the brain for interpretation. 
E) None of these describe how we interpret taste. 
A) The taste buds contain microvilli that project into the taste pore.The molecules bind to receptor proteins located on the microvilli which send a nerve impulse to the brain for interpretation. 
B) The taste buds contain receptor proteins that are located on the tongue.The molecules bind to receptor proteins which send a nerve impulse to the brain for interpretation. 
C) The taste buds contain microvilli that project into the taste pore.The molecules bind to receptor proteins located on the microvilli which send a nerve impulse to the spinal cord for interpretation. 
D) The tongue moves molecules into the mouth so that the sinuses can detect the various scents.This information is then sent to the brain for interpretation. 
E) None of these describe how we interpret taste.

Question 13

The actual physiological mechanism that allows fish to school involves both the cutaneous receptors known as the lateral line as well as their eyesight.Therefore,the stimuli that fish use to school are light and

Accepted Answer

A) pressure waves. 
B) temperature. 
C) sound waves. 
D) gravitational pull. 
E) molecules for taste. 
A) pressure waves. 
B) temperature. 
C) sound waves. 
D) gravitational pull. 
E) molecules for taste.

Question 14

The photoreceptors of the eye are located in the

Accepted Answer

A) retina. 
B) optic nerve. 
C) choroid layer. 
D) sclera. 
E) organ of Corti. 
A) retina. 
B) optic nerve. 
C) choroid layer. 
D) sclera. 
E) organ of Corti.

Question 15

Which of the following structures function(s)to bend light rays?

Accepted Answer

A) choroid 
B) rods and cones 
C) ciliary body 
D) lens and cornea 
E) iris and vitreous humor 
A) choroid 
B) rods and cones 
C) ciliary body 
D) lens and cornea 
E) iris and vitreous humor

Question 16

The correct order in which a light ray reaches the retina is:

Accepted Answer

A) cornea-vitreous humor-pupil-lens-aqueous humor-retina. 
B) lens-vitreous humor-cornea-aqueous humor-retina. 
C) lens-cornea-aqueous humor-vitreous humor-retina. 
D) cornea-aqueous humor-pupil-lens-vitreous humor-retina. 
E) lens-aqueous humor-cornea-vitreous humor-retina. 
A) cornea-vitreous humor-pupil-lens-aqueous humor-retina. 
B) lens-vitreous humor-cornea-aqueous humor-retina. 
C) lens-cornea-aqueous humor-vitreous humor-retina. 
D) cornea-aqueous humor-pupil-lens-vitreous humor-retina. 
E) lens-aqueous humor-cornea-vitreous humor-retina.

Question 17

Which statement about taste receptors is NOT true?

Accepted Answer

A) Taste receptors are chemoreceptors. 
B) Taste receptors are located within taste buds in humans. 
C) Taste receptors are found only on the tongue in animals. 
D) Taste receptors recognize sweet,sour,bitter,and salty sensations. 
E) Taste receptors generate nerve impulses in associated sensory nerve fibers. 
A) Taste receptors are chemoreceptors. 
B) Taste receptors are located within taste buds in humans. 
C) Taste receptors are found only on the tongue in animals. 
D) Taste receptors recognize sweet,sour,bitter,and salty sensations. 
E) Taste receptors generate nerve impulses in associated sensory nerve fibers.

Question 18

Which of the following sensations would involve a chemoreceptor?

Accepted Answer

A) smell 
B) vision 
C) taste 
D) All of the above are correct. 
E) Smell and taste only are correct. 
A) smell 
B) vision 
C) taste 
D) All of the above are correct. 
E) Smell and taste only are correct.

Question 19

The structure in the eye that is similar to a camera diaphragm,regulating the size of the opening for light is the

Accepted Answer

A) pupil. 
B) retina. 
C) iris. 
D) ciliary muscle. 
E) lens. 
A) pupil. 
B) retina. 
C) iris. 
D) ciliary muscle. 
E) lens.

Question 20

When the cerebral cortex interprets the sense of taste it will also be interpreting the sense of smell.

Accepted Answer

A) True 
 B)False

Exam 38: Sense Organs

Which of the following structures would be impacted by a bacterial infection of the inner ear?

The organ of Corti consists of the

The _____ of the retina,which is responsible for acute vision,has densely packed cone cells.

From what you currently know,in a spacecraft at a point of weightlessness,which effect is most likely?

An individual who works in construction and is exposed to years of loud noises,below 75 decibels,will most likely develop a decease in hearing function.The structures that are damaged are the ______________.

Which of the following statements about the process of hearing is true?

What kind of receptors are involved in hearing?

Which of the following best describes sensory transduction?

At night,we see primarily black and white and shades of gray,except near lights where some color is still evident.This is outward evidence of what internal anatomy?

What is the aqueous humor?

Which of the following statements about photoreceptors is NOT true?

Which statement most accurately describes how we interpret the sensation of taste?

The actual physiological mechanism that allows fish to school involves both the cutaneous receptors known as the lateral line as well as their eyesight.Therefore,the stimuli that fish use to school are light and

The photoreceptors of the eye are located in the

Which of the following structures function(s)to bend light rays?

The correct order in which a light ray reaches the retina is:

Which statement about taste receptors is NOT true?

Which of the following sensations would involve a chemoreceptor?

The structure in the eye that is similar to a camera diaphragm,regulating the size of the opening for light is the

When the cerebral cortex interprets the sense of taste it will also be interpreting the sense of smell.

A View of Life

Basic Chemistry

The Chemistry of Organic Molecules

Cell Structure and Function

Membrane Structure and Function

Metabolism: Energy and Enzymes

Photosynthesis

Cellular Respiration

The Cell Cycle and Cellular Reproduction

Meiosis and Sexual Reproduction

Mendelian Patterns of Inheritance

Molecular Biology of the Gene

Regulation of Gene Expression

Biotechnology and Genomics

Darwin and Evolution

How Populations Evolve

Speciation and Macroevolution

Origin and History of Life

Taxonomy,systematics,and Phylogeny

Viruses,bacteria,and Archaea

Protist Evolution and Diversity

Fungi Evolution and Diversity

Plant Evolution and Diversity

Flowering Plants: Structure and Organization

Flowering Plants: Nutrition and Transport

Flowering Plants: Control of Growth Responses

Flowering Plants: Reproduction

Invertebrate Evolution

Vertebrate Evolution

Human Evolution

Animal Organization and Homeostasis

Circulation and Cardiovascular Systems

The Lymphatic and Immune Systems

Digestive Systems and Nutrition

Respiratory Systems

Body Fluid Regulation and Excretory Systems

Neurons and Nervous Systems

Locomotion and Support Systems

Hormones and Endocrine Systems

Reproductive Systems

Animal Development

Behavioral Ecology

Population Ecology

Community and Ecosystem Ecology

Major Ecosystems of the Biosphere

Conservation of Biodiversity

Filters