BIOD 152 MODULE 3
1. true or false: olfaction is a chemical sense activated by chemical sub-stance dissolved in
the nasal mucous membranes.
Answer: true
2. which of the following is not one of the primary odors in humans?
Answer: -pheromones
3. A person cannot perceive tastes from the anterior portion of the tongue.What nerve is
most likely damaged?
Answer: glossopharyngeal nerve
4. The tongue helps form food into a compact mass called a .
Answer: bolus
5. the papillae that contains taste buds are
Answer: circumvallate
6. a patient has lost his sense of smell following a car accident. what termshould be
documented to describe his loss of smell?
Answer: anosmia
7. true or false: the tongue contains nociceptors and thermoreceptors inaddition to
chemoreceptors.
Answer: true
8. describe the steps in the olfactory pathway. begin in the nasal cavity andend in the
specific lobe of the brain.
Answer:
*chemicals dissolve in the nasal cavity
*detected by olfactory receptors (bipolar cells)
*olfactory nerves, olfactory bulb, olfactory tract
*temporal lobe of the brain
9. a patient sustains an injury to the organ of corti. what type of deafness does this patient
most likely have?
Answer: nerve deafness. it occurs from damage to the nerve for the auditory pathway. the
organ of corti is part of the nerve pathway(receptor cells).
10. Rods
Answer: more numerous photoreceptor cells, stimulated in dim light and do not generate sharp
color images
, 11. Cones
Answer: less numerous photoreceptor cells, stimulated in bright light to helpgenerate sharp
color images
12. Explain the vision pathway in the brain
Answer: Optic nerve, optic chiasm, optictracts, occipital lobe
13. What allows for 3-D vision?
Answer: Overlapping information in the nasal visual fieldsallows for 3-D vision, called the
binocular visual field.
14. The left side of the brain receives information from the
of theleft eye and the of the right eye.
Answer: medial side, lateral side
15. Diplopia
Answer: Double vision
16. function of the auricle
Answer: The auricle is shaped to funnel sound waves into theexternal acoustic canal so that
sounds can be detected.
17. Conduction deafness vs. nerve deafness
Answer: Conduction deafness occurs fromdamage to the outer or middle ear structures. Nerve
deafness occurs from damageto the nerve pathway.
18. Olfactory nerves contain what type of receptor cells?
Answer: Bipolar receptor cells
19. what senses contain specialized receptors via specialized somatic andvisceral afferents?
Answer: smell, equilibrium
20. the posterior portion of the outer fibrous layer of the eye is called the
Answer: sclera
21. what portion of the eye supplies blood supply to the other layers of theeye?
Answer: choroid (of the middle layer)
22. true or false: the more numerous type pf photoreceptors are rods.
Answer: true
23. what is the correct order of how light passes through the eye?
Answer: cornea, lens,vitreous fluid, retina
24. A patient is found to have blindness of the right visual field of both eyes.what part of
1. true or false: olfaction is a chemical sense activated by chemical sub-stance dissolved in
the nasal mucous membranes.
Answer: true
2. which of the following is not one of the primary odors in humans?
Answer: -pheromones
3. A person cannot perceive tastes from the anterior portion of the tongue.What nerve is
most likely damaged?
Answer: glossopharyngeal nerve
4. The tongue helps form food into a compact mass called a .
Answer: bolus
5. the papillae that contains taste buds are
Answer: circumvallate
6. a patient has lost his sense of smell following a car accident. what termshould be
documented to describe his loss of smell?
Answer: anosmia
7. true or false: the tongue contains nociceptors and thermoreceptors inaddition to
chemoreceptors.
Answer: true
8. describe the steps in the olfactory pathway. begin in the nasal cavity andend in the
specific lobe of the brain.
Answer:
*chemicals dissolve in the nasal cavity
*detected by olfactory receptors (bipolar cells)
*olfactory nerves, olfactory bulb, olfactory tract
*temporal lobe of the brain
9. a patient sustains an injury to the organ of corti. what type of deafness does this patient
most likely have?
Answer: nerve deafness. it occurs from damage to the nerve for the auditory pathway. the
organ of corti is part of the nerve pathway(receptor cells).
10. Rods
Answer: more numerous photoreceptor cells, stimulated in dim light and do not generate sharp
color images
, 11. Cones
Answer: less numerous photoreceptor cells, stimulated in bright light to helpgenerate sharp
color images
12. Explain the vision pathway in the brain
Answer: Optic nerve, optic chiasm, optictracts, occipital lobe
13. What allows for 3-D vision?
Answer: Overlapping information in the nasal visual fieldsallows for 3-D vision, called the
binocular visual field.
14. The left side of the brain receives information from the
of theleft eye and the of the right eye.
Answer: medial side, lateral side
15. Diplopia
Answer: Double vision
16. function of the auricle
Answer: The auricle is shaped to funnel sound waves into theexternal acoustic canal so that
sounds can be detected.
17. Conduction deafness vs. nerve deafness
Answer: Conduction deafness occurs fromdamage to the outer or middle ear structures. Nerve
deafness occurs from damageto the nerve pathway.
18. Olfactory nerves contain what type of receptor cells?
Answer: Bipolar receptor cells
19. what senses contain specialized receptors via specialized somatic andvisceral afferents?
Answer: smell, equilibrium
20. the posterior portion of the outer fibrous layer of the eye is called the
Answer: sclera
21. what portion of the eye supplies blood supply to the other layers of theeye?
Answer: choroid (of the middle layer)
22. true or false: the more numerous type pf photoreceptors are rods.
Answer: true
23. what is the correct order of how light passes through the eye?
Answer: cornea, lens,vitreous fluid, retina
24. A patient is found to have blindness of the right visual field of both eyes.what part of
