100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
RHSC420 FINAL Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed £9.98   Add to cart

Exam (elaborations)

RHSC420 FINAL Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed

 0 view  0 purchase
  • Module
  • RHSC 420
  • Institution
  • RHSC 420

How do images in our visual field that project to the retina look like? -:- REVERSED and INVERTED Describe the optic pathway -:- 1) Retinal fibers take info from contralateral visual field -Nasal retinal and temporal retinal fibers 2) Optic Nerve -Ipsilateral afferent info down optic nerve ...

[Show more]

Preview 3 out of 20  pages

  • September 6, 2024
  • 20
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • RHSC 420
  • RHSC 420
avatar-seller
2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



RHSC420 FINAL Questions & 100% Correct
Answers- Latest Test | Graded A+ | Passed
How do images in our visual field that project to the retina look like?


✓ -:- REVERSED and INVERTED




Describe the optic pathway


✓ -:- 1) Retinal fibers take info from contralateral visual field

-Nasal retinal and temporal retinal fibers




2) Optic Nerve


-Ipsilateral afferent info down optic nerve




3) Optic Chiasm


-Nasal retinal fibers cross, temporal retinal stay




4) Optic tract


-Contain afferents from contralateral visual field




1|Page | Grade A+| 2024/2025

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

5) Optic radiations


-Project from Lateral Geniculate Nucleus (LGN) to primary visual cortex




How do optic radiation projection differ based on visual field?


✓ -:- Upper: Afferent from lower retina, loop around the inferior horn of lateral

ventricle (Meyer's loop), synapse below calcarine sulcus




Middle: Afferents from fovea project through parietal lobe and synapse above/below

calcarine sulcus




Lower: Afferent from upper retina project into parietal lobe and synapse above calcarine

sulcus




How is the visual field represented in the primary visual cortex?


✓ -:- Middle visual field is represented more anteriorly, peripheral visual field

represented more posteriorly




What does rods/cones specialize in?


✓ -:- Rods: Dim light, high sensitivity to light

Cones: Visual acuity in bright light/colour vision

2|Page | Grade A+| 2024/2025

, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!




-Only cones in the fovea, periphery has more rods




Blood supply in the eye and visual cortex


✓ -:- Retina has dual blood supply - ciliary/retinal vessels

-Ciliary: supplies optic disc, choroid/sclera, outer retina


-Central retinal artery (CRA): supplies inner retina


-Central retinal vein (CRV): drains into ophthalmic vein -> cavernous sinus




Visual cortex = PCA




How is visual info processed?


✓ -:- Primary visual cortex integrates the info and projects it to association areas

through dorsal/ventral streams




Ventral - Where/how -> Parietal lobe (attention/awareness)


Dorsal - What -> Temporal lobe (recognition)




What are the innervations for the extraocular mm?

3|Page | Grade A+| 2024/2025

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller TestTrackers. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £9.98. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

85443 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£9.98
  • (0)
  Add to cart