Biol 235 Unit 17 Sample Questions PDF

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Package Title: Testbank Course Title: pap Chapter Number: 17Question type: Multiple Choice Olfactory receptors are found a) throughout the nasal cavity. b) only in the superior portion of the nasal cavity. c) only in the inferior portion of the nasal cavity. d) from the vestibule to the pharynx. e) ...

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Package Title: Testbank Course Title: pap14 Chapter Number: 17

Question type: Multiple Choice

1) Olfactory receptors are found a) throughout the nasal cavity. b) only in the superior portion of the nasal cavity. c) only in the inferior portion of the nasal cavity. d) from the vestibule to the pharynx. e) only in the mid-nasal ridges. Answer: b Difficulty: Easy Study Objective 1: SO 17.1 Describe the olfactory receptors and the neural pathway for olfaction. Study Objective 2: SO 17.1.1 Describe the structure of the olfactory receptors and other cells involved in olfaction. Section Reference 1: Sec 17.1 Olfaction: Sense of Smell

2) The smell receptors that actually bind the odorants and begin signal transduction are located on a) olfactory hairs. b) glial cells. c) basal stem cells. d) Bowman’s glands. e) gustatory receptor cells. Answer: a Difficulty: Medium Study Objective 1: SO 17.1 Describe the olfactory receptors and the neural pathway for olfaction. Study Objective 2: SO 17.1.1 Describe the structure of the olfactory receptors and other cells involved in olfaction. Section Reference 1: Sec 17.1 Olfaction: Sense of Smell

3) Adaptation of the olfactory sense to the continued presentation of an odorant

a) occurs rapidly. b) increases sensitivity to that odorant. c) occurs slowly. d) does not occur. e) enhances gustation. Answer: a Difficulty: Medium Study Objective 1: SO 17.1 Describe the olfactory receptors and the neural pathway for olfaction. Study Objective 2: SO 17.1.1 Describe the structure of the olfactory receptors and other cells involved in 4olfaction. Section Reference 1: Sec 17.1 Olfaction: Sense of Smell

4) The olfactory tract a) projects directly to the primary olfactory cortex and to the limbic system and hypothalamus. b) conducts impulses directly to the thalamus. c) contains only motor neurons. d) receives information from the taste buds. e) consists of the olfactory and vestibulocochlear nerves. Answer: a Difficulty: Medium Study Objective 1: SO 17.1 Describe the olfactory receptors and the neural pathway for olfaction. Study Objective 2: SO 17.1.1 Describe the structure of the olfactory receptors and other cells involved in olfaction. Section Reference 1: Sec 17.1 Olfaction: Sense of Smell

5) These receptor cells provide for the sense of taste. a) Olfactory hair cells b) Pacinian corpuscles c) Basal stem cells d) Hair cells e) Gustatory cells Answer: e Difficulty: Medium

Study Objective 1: SO 17.2 Describe the structure of gustatory receptors and the neural pathway for gustation. Section Reference 1: Sec 17.2 Gustation: Sense of Taste

6) Taste buds are found on a) the epiglottis. b) the pharynx. c) the soft palate. d) both epiglottis and pharynx. e) All of these choices Answer: e Difficulty: Medium Study Objective 1: SO 17.2 Describe the structure of gustatory receptors and the neural pathway for gustation. Section Reference 1: Sec 17.2 Gustation: Sense of Taste

7) Which of the following types of papillae do NOT contain taste buds? a) Vallate b) Fungiform c) Foliate d) Filiform e) Circumvallate Answer: d Difficulty: Medium Study Objective 1: SO 17.2 Describe the structure of gustatory receptors and the neural pathway for gustation. Section Reference 1: Sec 17.2 Gustation: Sense of Taste

8) Which of the following nerves conducts impulses associated with the sense of gustation? a) Vestibulocochlear b) Oculomotor c) Vagus d) Trigeminal e) Spinal accessory Answer: c

Difficulty: Medium Study Objective 1: SO 17.2 Describe the structure of gustatory receptors and the neural pathway for gustation. Section Reference 1: Sec 17.2 Gustation: Sense of Taste

9) Which is NOT considered an accessory structure of the eye? a) Eyelids b) Eyelashes c) Lacrimal apparatus d) Eyebrows e) Retina Answer: e Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

10) Which of the following is the space between the upper and lower eyelids? a) Palpebral fissure b) Levator palpebrae c) Lacrimal caruncle d) Lateral commissure e) Conjunctiva Answer: a Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

11) This is a thin mucous membrane that protects the inner aspect of the eyelids and the portion of the sclera covering the anterior surface of the eyeball.

a) Palpebral fissure b) Conjunctiva c) Lateral commissure d) Cornea e) Choroid Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

12) Infection of a sebaceous ciliary gland can result in a) blood shot eyes. b) inhibition of tear production. c) a sty. d) glaucoma. e) blindness. Answer: c Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

Question type: Essay

13) List the cells, structures, and fluids that light must pass through to reach the photoreceptor cells. Answer: Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway.

Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision Solution: Cornea, Aqueous humor, Pupil, Lens, Vitreous humor, Ganglion cells, Bipolar cells, Photoreceptor cells.

Question type: Multiple Choice

14) Which is the correct order in the flow of tears? a) Lacrimal gland, lacrimal sac, lacrimal duct, superior or inferior lacrimal canal, nasolacrimal duct, nasal cavity b) Lacrimal gland, lacrimal duct, superior or inferior lacrimal canal, nasolacrimal duct, lacrimal sac, nasal cavity c) Lacrimal gland, lacrimal duct, nasolacrimal duct, superior or inferior lacrimal canal, lacrimal sac, nasal cavity d) Lacrimal gland, lacrimal duct, superior or inferior lacrimal canal, lacrimal sac, nasolacrimal duct, nasal cavity e) Lacrimal gland, lacrimal sac, nasolacrimal duct, superior or inferior lacrimal canal, lacrimal duct, nasal cavity Answer: d Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

15) How many extrinsic eye muscles are responsible for moving each eye? a) 10 b) 12 c) 6 d) 4 e) 20 Answer: c Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway.

Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

16) Which of the following is the transparent layer on the anterior of the eyeball through which the iris can be observed? a) Retina b) Choroid c) Sclera d) Ciliary body e) Cornea Answer: e Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

17) Which structure regulates the amount of light entering the eyeball through the pupil? a) Retina b) Cornea c) Iris d) Choroid e) Ciliary muscle Answer: c Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

18) The lens is made of layers of proteins called a) choroids. b) ciliary bodies.

c) crystallins. d) cones. e) rods. Answer: c Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

19) What lies between the lens and the retina? a) Vitreous chamber b) Anterior chamber c) Anterior cavity d) Cornea e) Aqueous humor Answer: a Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

20) Which layer of dense connective tissue serves to protect the inner parts of the eyeball? a) Sclera b) Pupil c) Iris d) Cornea e) Retina Answer: a Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway.

Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

21) Which darkly pigmented structure reduces light reflection within the eyeballs? a) Sclera b) Conjunctiva c) Iris d) Choroid e) Retina Answer: d Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

22) Which of the types of receptors listed below is primarily used for detecting light rays under bright light conditions? a) olfactory hair cells b) rods c) cones d) ganglion neurons e) amacrine cells Answer: c Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.3 Describe the processing of visual signals in the retina and the neural pathway for vision. Section Reference 1: Sec 17.3 Vision

23) The first step in the visual transduction process that occurs in the retina is a) activation of amacrine cells. b) absorption of scattered light by the pigmented epithelium.

c) interruption of the dark current. d) absorption of light by photopigments. e) generation of action potentials in the optic nerve. Answer: d Difficulty: Hard Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.3 Describe the processing of visual signals in the retina and the neural pathway for vision. Section Reference 1: Sec 17.3 Vision

24) Binocular vision a) gives better depth perception. b) provides more accurate color vision. c) is only seen in humans. d) occurs when one eye focuses on two separate objects. e) is all of these choices Answer: a Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.2 Discuss image formation by describing refraction, accommodation, and constriction of the pupil. Section Reference 1: Sec 17.3 Vision

25) What structure vibrates back and forth when sound waves strike it? a) cochlea b) pinna c) tympanic membrane d) organ of Corti e) vestibulocochlear nerve Answer: c Difficulty: Easy Study Objective 1: SO 17.4 Describe the structural and functional components of the ear and those of the hearing and equilibrium pathways. Study Objective 2: SO 17.4.2 List the major events in the physiology of hearing.

Section Reference 1: Sec 17.4 Hearing and Equilibrium

26) Which of the structures listed below converts vibrations in the endolymph into action potentials? a) macula b) pinna c) tympanic membrane d) organ of Corti e) cupula Answer: d Difficulty: Medium Study Objective 1: SO 17.4 Describe the structural and functional components of the ear and those of the hearing and equilibrium pathways. Study Objective 2: SO 17.4.2 List the major events in the physiology of hearing. Section Reference 1: Sec 17.4 Hearing and Equilibrium

27) Which of the following structures carries action potentials generated by sound transduction? a) vagus nerve b) basilar membrane c) tympanic membrane d) organ of Corti e) vestibulocochlear nerve Answer: e Difficulty: Easy Study Objective 1: SO 17.4 Describe the structural and functional components of the ear and those of the hearing and equilibrium pathways. Study Objective 2: SO 17.4.2 List the major events in the physiology of hearing. Section Reference 1: Sec 17.4 Hearing and Equilibrium

28) Which of the following structures senses change in rotational acceleration of the head in order to help maintain dynamic equilibrium? a) cochlea b) semicircular canals c) maculae of the vestibule d) organ of Corti e) vestibulocochlear nerve

Answer: b Difficulty: Easy Study Objective 1: SO 17.4 Describe the structural and functional components of the ear and those of the hearing and equilibrium pathways. Study Objective 2: SO 17.4.4 Describe the auditory and equilibrium pathways. Section Reference 1: Sec 17.4 Hearing and Equilibrium

29) Which of the labeled papilla houses 100–300 taste buds each?

v a) A b) B c) C d) D e) Both A and D Answer: a Difficulty: Medium Study Objective 1: SO 17.2 Describe the structure of gustatory receptors and the neural pathway for gustation. Section Reference 1: Sec 17.2 Gustation: Sense of Taste

30) Identify the thin protective mucous membrane composed of stratified squamous epithelium with numerous goblet cells.

a) A and B b) B and D c) C and A d) D and C e) B and E Answer: a Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

31) Identify the structure that secretes a fluid that keeps the eyelids from sticking to each other.

a) D b) E c) F d) G e) None of these choices Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

32) Identify the optic nerve.

a) C b) D c) E d) F e) None of these choices Answer: d Difficulty: Easy Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

33) Identify the choroid.

a) F b) E c) D d) G e) H Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

34) Identify the sclera.

a) F b) E c) D d) G e) H Answer: c Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

35) Identify the structure that contains aqueous humor.

a) A b) G c) H d) F e) D Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

36) Identify the ciliary body.

a) A b) B c) C d) H e) F Answer: d Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

37) Which labeled structure is the blind spot of the eye?

a) A b) B c) C d) G e) H Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

38) Identify the bipolar cell layer.

a) A b) B c) C d) D Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

39) Identify the ganglion cell layer.

a) A b) B c) C d) D Answer: d Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.1 List and describe the accessory structures of the eye and the structural components of the eyeball. Section Reference 1: Sec 17.3 Vision

40) Which figure illustrates farsightedness before it has been corrected?

a) A b) B c) C d) D e) E Answer: d Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.2 Discuss image formation by describing refraction, accommodation, and constriction of the pupil. Section Reference 1: Sec 17.3 Vision

41) Which figure illustrates nearsightedness before it has been corrected?

a) A b) B c) C d) D e) E Answer: b Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.2 Discuss image formation by describing refraction, accommodation, and constriction of the pupil. Section Reference 1: Sec 17.3 Vision

42) Which labeled step(s) represents regeneration of active photopigment?

a) 1 b) 2 c) 3 d) 4 e) Both 1 and 3 Answer: d Difficulty: Medium Study Objective 1: SO 17.3 Describe the structural and functional components of the eye and those of the vision pathway. Study Objective 2: SO 17.3.3 Describe the processing of visual signals in the retina and the neural pathway for vision. Section Reference 1: Sec 17.3 Vision

43) Which labeled step(s) represents bleaching of the photopigment?

a) 1 b) 2 c) 3 d) 4 e) Both 2 and ...