BIOD 152 MODULE 3 EXAM
1. the posterior portion of the outer layer of the eye
Answer: sclera
2. Match the numbers (1-5) in the figure below with the correct terms (A-H).
Answer:
1) H- Scala Vestibuli
2) D- cochlear duct
3) E- organ of corti
4) A- scala tympani
5) G- cochlear nerve
3. which of the following is a true statement regarding the external ear?
Answer: theauricle funnels sound into the external acoustic meatus
4. papillae that contain taste buds
Answer: fungiform and circumvallate
5. a patient has a brain tumor in the area indicated by the red X in the figure(behind left eye)
what type of blindness?
Answer:
-left eye blindness
-damage to left optic nerve
-info from left visual field has not yet crossed left optic chiasm.
-both peripheral and nasal fields from left eye would be missing
6. the is controlled by the cochlear nerve
Answer: superior oblique
7. Match the numbers (1-5) in the figure below with the correct terms (A-H).
Answer:
1) B- Facial nerve
2) E- Malleus
3) D- Cochlea
4) C- Tympanic membrane
5) H- Incus
8. which of the following is true regarding the middle ear?
Answer: it is filled with air
9. Describe the steps in the taste pathway
, Answer:
-food chemicals contact gustatoryhairs
-action potential in dendrites is generated
-the nerve impulse is carried by afferent fibers through two cranial nerve pairs (facialand
glossopharyngeal)
-they transport impulses to parietal mode and thalamus to be translated as taste
-facial nerve -->anterior 2/3 of tongue
-glossopharyngeal nerve --> posterior 1/3 of tongue
10. a patient sustains an injury to the malleus. what type of deafness?
Answer:
-conductive
-occurs from damage to outer/ middle ear structures
-malleus is part of middle ear
11. the middle layer of the eye includes which regions?
Answer: ciliary body and iris
12. true or false: cones operate best in dim light
Answer: false
13. what sense does not have specialized sense organs?
Answer: touch
14. the outer fibrous layer of the eye includes the
Answer: sclera and cornea
15. which portion of the eye supplies blood supply to other areas of the eye?
Answer: -choroid (of the middle layer)
16. true or false: the more numerous type of photoreceptors are rods
Answer: true
17. what is the correct order of how light travels through the eye?
Answer: cornea, lens,vitreous fluid, retina
18. a patient is found to have blindness of the right visual field of both eyes.what part of
thevision pathway was most likely damaged? explain your answer
Answer:
-The Left LGN
-all of the sensory information from the right visual fields travels together after theoptic
chiasm to the left side of the brain
1. the posterior portion of the outer layer of the eye
Answer: sclera
2. Match the numbers (1-5) in the figure below with the correct terms (A-H).
Answer:
1) H- Scala Vestibuli
2) D- cochlear duct
3) E- organ of corti
4) A- scala tympani
5) G- cochlear nerve
3. which of the following is a true statement regarding the external ear?
Answer: theauricle funnels sound into the external acoustic meatus
4. papillae that contain taste buds
Answer: fungiform and circumvallate
5. a patient has a brain tumor in the area indicated by the red X in the figure(behind left eye)
what type of blindness?
Answer:
-left eye blindness
-damage to left optic nerve
-info from left visual field has not yet crossed left optic chiasm.
-both peripheral and nasal fields from left eye would be missing
6. the is controlled by the cochlear nerve
Answer: superior oblique
7. Match the numbers (1-5) in the figure below with the correct terms (A-H).
Answer:
1) B- Facial nerve
2) E- Malleus
3) D- Cochlea
4) C- Tympanic membrane
5) H- Incus
8. which of the following is true regarding the middle ear?
Answer: it is filled with air
9. Describe the steps in the taste pathway
, Answer:
-food chemicals contact gustatoryhairs
-action potential in dendrites is generated
-the nerve impulse is carried by afferent fibers through two cranial nerve pairs (facialand
glossopharyngeal)
-they transport impulses to parietal mode and thalamus to be translated as taste
-facial nerve -->anterior 2/3 of tongue
-glossopharyngeal nerve --> posterior 1/3 of tongue
10. a patient sustains an injury to the malleus. what type of deafness?
Answer:
-conductive
-occurs from damage to outer/ middle ear structures
-malleus is part of middle ear
11. the middle layer of the eye includes which regions?
Answer: ciliary body and iris
12. true or false: cones operate best in dim light
Answer: false
13. what sense does not have specialized sense organs?
Answer: touch
14. the outer fibrous layer of the eye includes the
Answer: sclera and cornea
15. which portion of the eye supplies blood supply to other areas of the eye?
Answer: -choroid (of the middle layer)
16. true or false: the more numerous type of photoreceptors are rods
Answer: true
17. what is the correct order of how light travels through the eye?
Answer: cornea, lens,vitreous fluid, retina
18. a patient is found to have blindness of the right visual field of both eyes.what part of
thevision pathway was most likely damaged? explain your answer
Answer:
-The Left LGN
-all of the sensory information from the right visual fields travels together after theoptic
chiasm to the left side of the brain
