Concept explainers
Receptor cells for taste are located
a. only on the tongue.
b. on the tongue, oral cavity, and pharynx.
c. in the oral cavity except the tongue.
d. on the tongue and nasal passages.
Introduction:Mechanoreceptor can be defined as a cell or sense organ which responds to the mechanical stimuli (such as sound or touch). Sense organs are those organs which respond to the exterior stimuli by the transmission of impulses to the sensory nervous system.
Answer to Problem 1PL
Correct answer:
The correct answer is the option (b). On the tongue, oral cavity, and pharynx.
Explanation of Solution
Explanation/justification for the correct answer:
Option (b). On the tongue, oral cavity, and pharynx. Taste receptors are the extended epithelial cells located all over the pharynx, epiglottis, tonsils, oral cavity, soft and hard palates. But these are present in abundance on the tongue. Hence, the option (b) is correct.
Explanation for the correct answer:
Option (a) Only on the tongue. Taste receptors are present in abundance on the tongue.
Hence, the option (a) is incorrect.
Option (c) In the oral cavity except the tongue. Taste receptors are the extended epithelial cells on the oral cavity. Hence, the option (c) is incorrect.
Option (d) On the tongue and nasal passages. Taste receptors are not present in the nasal passage. Hence, the option (d) is incorrect.
Taste receptors are the extended epithelial cells located all over the pharynx, epiglottis, tonsils, oral cavity, soft palates, and hard palates and on the tongue. Hence, the option (b) is correct.
Want to see more full solutions like this?
Chapter 34 Solutions
Laboratory Manual For Human Anatomy & Physiology
- which statements are true about the Auditory Structures and Functions a. The external ear consists of the auricle and external acoustic meatus. b. The middle ear connects the external and inner ears. The tympanic membrane is stretched across the external acoustic meatus. c. The malleus, incus, and stapes connect the tympanic membrane to the oval window of the outer ear. d. The auditory tube connects the middle ear to the pharynx and functions to equalize pressure.arrow_forwardWhich two of the following are part of the olfactory organs? a. olfactory receptor cells b. columnar epithelial cells in the nasal mucosa c. the brain d. the eyesarrow_forwardWhich of these statements is not true with respect to olfaction?a. Olfactory sensation is relayed directly to the cerebral cortex withoutpassing through the thalamus.b. Olfactory neurons are replaced about every 2 months.c. The olfactory cortex is involved in the conscious perception of smell.d. The secondary olfactory areas are responsible for visceral andemotional reactions to odors.e. The olfactory cortex is in the occipital lobe of the cerebrum.arrow_forward
- Taste buds on the surface of the tongue can detect a taste only when chemicals are dissolved in saliva so that chemoreceptors can start an impulse to the brain. Which of the following statements is correct about the taste sensory pathway? a. The temporal lobe of the cerebrum perceives the taste sensation. b. Nerve impulses trigger taste buds and send information to the brain. c. Taste buds sense taste, and the parietal lobe perceives taste. d. The tip of the tongue senses sweet, and the periphery senses sour and salty flavours.arrow_forwardThe arrangement of tunics in the eye, from the innermost to outermost aspect of the eye, is a. retina, vascular, fibrous. b. vascular, retina, fibrous. c. vascular, fibrous, retina. d. retina, fibrous, vascular.arrow_forwardIn humans, most olfactory cells are located in thea. nasal cavity.b. nostrils.c. pharynx.d. roof of the mouth.arrow_forward
- Which of the following statements are true of the parts of the eye? (Read carefully and select all the correct statements.) A. Vitreous humor is reabsorbed into the canal of Schlemm. B. The radial muscles of the iris constrict the pupil. C. The white of the eye is formed by the sclera. D. The choroid layer absorbs light within the eyeball. E. The conjunctiva is kept moist by tears secreted by the lacrimal glands. F. The retina is the innermost layer of the eyeball. G. The ciliary muscle is a circular smooth muscle that changes the shape of the cornea. H. Aqueous humor is the tissue fluid of the eye; it nourishes the lens and cornea.arrow_forwardWhat statements are true about taste buds?a. Taste buds consist of basilar, supporting, and gustatory cells. b. The gustatory cells have gustatory hairs that extend into taste pores. c. Receptors on the hairs detect dissolved substances. d. Five basic types of taste exist: sour, salty, bitter, sweet, and umami.arrow_forwardWhich statements is/are true? a. The test substances can only be determined in their specific area according to the taste map of thetongue.b. The test substances can be determined anywhere in the tongue.c. The middle of the tongue cannot taste any of the substances.d. The salt solution is the only substances that could be determined in the middle of the tongue.e. Intensity of the taste of the substances are different form every area of the tongue.arrow_forward
- which statements are true about the Auditory Structures and their Functions a. The middle ear is connected to the mastoid air cells. b. The inner ear has three parts: the semicircular canals; the vestibule, which contains the utricle and the saccule; and the cochlea. c. The cochlea is a circular-shaped canal within the temporal bone. d. The cochlea is divided into two compartments by the vestibular and basilar membranes. The scala vestibuli and scala tympani contain perilymph. The cochlear duct contains endolymph and the spiral organ (organ of Corti).arrow_forwardOlfactory sensory neurons have olfactory ______ that extend outward from the epithelium for conveying impulses in sensation of smell. A. papillae B. supporting cells C. olfactory epithelium D. cilia What chemicals would elicit the bitter taste sensation? A. alkaloids B. metal ions C. hydorgen ions D. glutamate Sound waves that enter the external auditory meatus will encounter the ______, which vibrates at exactly the same frequency as the sound waves hitting it? A. ceruminous glands B. tympanic membrane C. auricle D. scala tympaniarrow_forwardWhich of the following statements are true of the physiology of vision? (Read carefully and select all the correct statements.) A. Cones are the receptors for color. B. The lens adjusts for distant vision, and the cornea adjusts for near vision. C. The optic nerve is formed by the ganglion neurons of the choroid layer. D. For near vision, the pupils dilate and the eyes converge. E. The optic chiasma is a crossing of optic nerve fibers that contributes to binocular vision. F. The visual areas are in the occipital lobes of the cerebrum. G. The area of the retina for the best color vision is the optic disc. H. Rods are most numerous at the periphery of the retina.arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education