Ch 9 Review

Humans are most sensitive to which taste A. Bitter B. Umami C. Sour D. Sweet E. Salty

A

Neurons in the respiratory centers of the brain that respond to pH are examples of A. Chemoreceptors B. Thermoreceptor C. Baroreceptors D. Mechanoreceptors E. Nociceptors

A

Nociceptors A. Have large receptive fields B. Are rare in joint capsules C. Carrie fast pain sensations through unmyelinated fibers D. Increase in sensitivity in the presence of a constant stimulus E. Are widely distributed in all tissues

A

Receptors in the ______ provide sensations of gravity and linear acceleration A. Vestibule B. Cochlea C. Semicircular Canals D. Internal acoustic meatus E. Auditory ossicles

A

Which of the following arrives at the primary sensory cortex A. Touch sensations B. Auditory sensation C. Visual sensations D. Motor efferents E. Olfactory sensations

A

Which of the following is a primary taste sensation A. Fruity B. Sweet C. Putrid D. Pregnant E. Metallic

B

Changing the shape of the lens to keep the focal length constant is a process called A. Astigmatism B. Myopia C. Accommodation D. Nearsightedness E. Farsightedness

C

Lamellated corpuscles (Pacinian corpuscles) are A. Baroreceptors B. Thermoreceptors C. Tactile receptors D. Proprioceptors E. Nociceptors

C

Proprioceptors A. Do not send information continuously to the CNS B. Are exemplified by receptors in the carotid and aortic sinus C. Do not adapt to constant stimulation D. Are free nerve endings that branch within the walls of a distensible organ E. For the most part produce information that is processed continuously

C

Ruffini corpuscles are examples of A. Baroreceptors B. Chemoreceptors C. Tactile receptors D. Nociceptors E. Proprioceptors

C

Taste receptors are A. Modified neural cells B. Sensitive to pain C. Specialized epithelial cell D. Unable to divide E. Found only on the tongue

C

The conscious awareness of a sensation is called A. Reception B. Adaptation C. Perception D. Desensitization E. Proprioception

C

The daily day and night cycle known as a circadian rhythm involves the A. Cerebellum B. Pituitary gland C. Pineal gland D. Inferior colliculi E. Medulla oblongata

C

The frequency of a sound is indicated to the nervous system by the A. Number of rows of hair cells that are stimulated in the spiral organ B. Frequency of vibration of the tectorial membrane of the spiral organ C. Region of the basilar membrane of the spiral organ that is stimulated D. Movement of the perilymph in the cochlear duct E. Frequency of hair cell vibration in the spiral organ

C

The perception of pain coming from parts of the body that are not actually stimulated is called A. Actual pain B. Slow pain C. Referred pain D. Recalcitrant pain E. Preferential pain

C

The tympanic membrane vibrates to frequencies between A. 20-2,000 Hz B. 2,000-3,000 Hz C. 20-20,000 Hz D. 200-200,000 Hz E. 2-200 Hz

C

Which of the following concerning olfaction is true A. Molecules to be smelled cannot be dissolved first in mucus B. Humans have fewer than 10,000 olfactory receptors C. Olfactory receptors are highly modified neurons D. Olfactory stimuli must pass through the thalamus before journeying to the olfactory cortex E. Human power of olfaction is as powerful as that of most other mammals

C

_______ deafness results from conditions in the middle ear that block the normal transfer of vibrations from the Tympanic membrane to the oval window A. Cochlear B. Nerve C. Conduction D. Corti E. Tunnel

C

Olfactory receptors are examples of A. Proprioceptor's B. Mechanoreceptors C. Thermoreceptors D. Chemoreceptors E. Pain receptors

D

Sensory receptors that respond to changes in blood pressure are called A. Thermoreceptors B. Nociceptors C. Chemoreceptors D. Baroreceptors E. Proprioceptors

D

Sound energy is converted into mechanical movements by the A. Cochlea B. Auditory ossicles C. Oval window D. Tympanic membrane E. Round window

D

Temperature senses used two types of A. Chemo receptors B. Lamellated corpuscle C. Tactile corpuscles D. Free nerve endings E. Proprioceptors

D

Which statement regarding sensory reception is correct A. Output from higher centers can dampen receptor sensitivity B. In general, the stronger the stimulus, the lower the frequency of action potentials C. The CNS can tell the difference between a true sensation and a false one D. The CNS interprets the nature of sensory information entirely on the basis of the area of the brain stimulated E. The larger the receptive field, the better is one's ability to localize a stimulus

D

You notice that your father holds his book farther from his face than he used to. Since you are taking in anatomy and physiology course, you realize that this is due to A. A lack of vitreous humor in his eyeballs posterior cavity B. His photo receptors have become less sensitive to light C. A tumor on his optic nerve D. His lens being unable to accommodate for close objects E. His cataracts

D

Your grandmother who lives in an assisted living facility is always complaining about how bad the food is. You eat there with her often and find the food to be cooked well and interesting, even though the food is not what you would really prefer. What is the most reasonable explanation for this? A. She has had a stroke that affected her primary gustatory cortex B. Your grandmother only likes food that she cooks C. She has no functional olfactory receptors anymore, and smell is a dominant part of taste D. She has fewer gustatory cells in her taste bud receptors E. Because of wear and tear on her tongue over the years, her taste buds are gone

D

Your young child has a middle ear infection: otitis media. There is a buildup of fluid, bacteria, and white blood cells, or pus, inside of the middle ear chamber. Why has this affected the child's hearing? A. The bacterial infection has destroyed the otoliths B. The cochlear receptor cells cannot move C. The tympanum is destroyed D. The auditory ossicles cannot vibrate freely E. The round window cannot vibrate to dissipate pressure

D

Gustation refers to the special sense of A. Vision B. Touch C. Equilibrium D. Balance E. Taste

E

Temperature sensations are relayed along the same pathways that carry sensations of A. Low frequency vibration B. pH C. Pressure D. Body position E. Pain

E

The movement of the stapes at the oval window establishes pressure waves in the A. Perilymph of the scala tympani B. Endolymph of the scala vestibuli C. Endolymph of the cochlear duct D. Ampullae E. Perilymph of the scala vestibuli

E

There are three different types of cones, each one sensitive to a different color wavelength of light. These cones are designated A. Yellow, green, and blue B. Red, yellow, and blue C. Red, yellow, and indigo D. Red, green, and yellow E. Red, blue, and green

E