Quiz
Week 13
This quiz has a time limit, so it opens in the usual player.
Questions in this quiz (10)
1Perception of motion is…
- Aa. None of these
- B
b. Mainly localized to V4 area of the visual cortex - C
c. Only present in patients with two healthy eyes - D
d. Strongly associated with MT (or V5) area of the visual cortex - E
e. Independent of the magnocellular LGN pathway
2Which of the following statements is correct:
- Aa. Cortical magnification occurs because the perceived cortical image size of an object is larger than its actual (physical) size
- B
b. LGN layers are organized into ipsilateral and contralateral ocular dominance columns - C
c. None of these - D
d. Cells within ‘cortical blobs’ are wavelength selective and mediate perception of colour - E
e. V1 only contains hypercomplex cells
3Amblyopia…
- Aa. All of these
- B
b. Is typically caused by ocular pathology (i.e. trauma) - C
c. Is caused by an abnormal allocation of ocular dominance columns within the visual cortex - D
d. Treatment may be delayed until patient has entered puberty - E
e. Causes an irreversible loss of vision, regardless of remedial therapy or age of patient
4Which of the following statements about the lateral geniculate nucleus (LGN) is correct:
- Aa. LGN receives projections from midget ganglion cells exclusively
- B
b. LGN receives input from the ipsilateral eye only - C
c. LGN contains 4 layers of cells - D
d. None of these - E
e. LGN is located within the cerebellum
5Which of the following statements is correct:
- Aa. 3D perception (stereopsis) occurs in the visual cortex due to the presence of disparity-selective neurons
- B
b. Prosopagnosia is the inability to recognize faces - C
c. All of these - D
d. Perception of colour is mediated by regions of V1, V2 and V4 - E
e. Visual attention is mediated by area V4 of the visual cortex
6Primary visual cortex…
- Aa. Devotes equal space to central and peripheral visual field projections
- B
b. Only contains tightly packed spiny pyramidal neurons - C
c. Is characterized by the presence of the line (stria) of Gennari - D
d. Is also known as Brodman’s Area 18 - E
e. Retains no retinotopic map of the visual space
7Which of the following statements is correct:
- Aa. Optic chiasm is located within the sella turcica
- B
b. None of these - C
c. Projections from both nasal retinas cross (decussate) at the optic chiasm - D
d. Anterior knee of Wilbrand contains projections from the superior nasal retina - E
e. Pineal gland is located immediately beneath the optic chiasm
8Which of the following statements is incorrect:
- Aa. Meyer’s loop is a bend in the course of optic radiations proximal to the lateral ventricle
- B
b. Pretectal nuclei are involved in the pupil reflex - C
c. Optic radiations extend from the chiasm to the lateral geniculate nucleus (LGN) - D
d. Calcarine sulcus is located in the occipital lobe - E
e. Superior colliculi are involved in the coordination of eye movements
9Which of the following statements is correct:
- Aa. Visual cortex cells display a preference for edge or bar stimuli over diffuse spot stimuli
- B
b. None of these - C
c. Layers 1 and 2 of the LGN are Parvocellular LGN - D
d. Magnocellular LGN pathway mediates colour vision information - E
e. Koniocellular cells of the LGN are confined to Layers 3,4,5,6
10Which of the following statements is correct:
- Aa. Typical symptoms of Horner’s syndrome include mydriasis and ptosis
- B
b. Significant parietal lobe lesions may produce a contralateral superior quadrantanopic visual field defect - C
c. Compression to the optic chiasm (i.e. pituitary adenoma), will cause a binasal hemianopic defect - D
d. Consensual light pupil reflexes are preserved in an afferent lesion - E
e. If the pupil fails to constrict on direct illumination, the lesion lies with the ipsilateral efferent pupillary pathway
Information
- Description
- Anatomy Quiz on Week 13, created by Melanie Galloway on 22/06/2014.
- Author
- Melanie Galloway
- Language
- English
- Views
- 69
- Tags
- Rating
- No ratings yet Rate this quiz