Sensory Pathways and Vision
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Questions and Answers

What type of cells are numerous in the Organ of Corti and are easily prone to damage?

  • Supporting cells
  • Outer hair cells (correct)
  • Auditory nerve fibers
  • Inner hair cells

Which type of cone cell is responsible for detecting the colour blue?

  • L cone
  • S cone (correct)
  • M cone
  • Rods

What is the name of the layered structure in the visual cortex where the optical nerve fibers terminate?

  • Visual cortex blobs
  • Stria of Gennari (correct)
  • Brodmann area 17
  • Calcarine cortex

Which neurotransmitter is released by Mitral cells in the olfactory bulb?

<p>Glutamate (D)</p> Signup and view all the answers

What is the name of the pathway that signals from the retina to the visual cortex?

<p>Parvocellular pathway (A)</p> Signup and view all the answers

In which part of the brain is the primary visual cortex located?

<p>Occipital lobe (D)</p> Signup and view all the answers

What is the function of bipolar cells in the retina?

<p>To relay signals between rods/cones and ganglion cells (A)</p> Signup and view all the answers

What is the role of 11-cis retinal in rod cells?

<p>It is involved in the light state of rod cells, converting to all-trans retinal (D)</p> Signup and view all the answers

Which layer of the visual cortex receives input from the parvocellular pathway?

<p>Layer 4 (D)</p> Signup and view all the answers

What is the function of the magnocellular pathway in the visual cortex?

<p>To detect movement and depth (B)</p> Signup and view all the answers

What type of vision is mediated by cone cells?

<p>All of the above (D)</p> Signup and view all the answers

Which type of retinal cells connect rods and cones?

<p>Horizontal cells (B)</p> Signup and view all the answers

Which Brodmann's area is responsible for word understanding and comprehension?

<p>Area 22 (A)</p> Signup and view all the answers

What type of aphasia is associated with a lesion in Brodmann's area 22?

<p>Wernicke's aphasia (D)</p> Signup and view all the answers

What is the function of the arcuate fasciculus bundle?

<p>Connecting Broca's and Wernicke's areas (A)</p> Signup and view all the answers

What percentage of cardiac output is cerebral blood flow?

<p>15% (B)</p> Signup and view all the answers

What is the effect of hypothermia on cerebral blood flow?

<p>It decreases cerebral blood flow by 7% (B)</p> Signup and view all the answers

What is the normal range of CSF pressure?

<p>70-180 mm H2O (C)</p> Signup and view all the answers

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