Summary
Summary Special senses NOTES
- Course
- Institution
Two pages of notes on special senses (touch, smell, taste, sight, hearing, equilibrium) including labelled diagrams.
[Show more]
Seller
Follow
yelhsa
Content preview
Special senses→ Touch. → Taste. → Hearing.
→ Smell. → Sight. → Equilibrium (balance).
THE EYE:
Sclera.
!
Vitreous chamber. Choroid.
Posterior chamber.
Iris. Fovea.
Cornea.
Lens. Retina.
Anterior chamber.
Suspensory ligaments.
·
Optic nerve.
→ Sclera: → Outer white layer that maintains the shape of the eye.
→ Muscles attached to the sclera control eye movements.
→ Choroid: → Middle layer that contains the blood vessels.
→ Cornea: → A clear, circular area in the sclera where light enters the eye.
→ Pupil: → The circular opening in the front of the choroid.
→ Iris: → Coloured smooth muscle surrounding the pupil which adjusts the size of the opening according to the brightness of light.
→ Lens: → Located behind the pupil, between the anterior & posterior chambers.
→ Is a transparent flexible by convex structure that bends or refracts light rays so they focus on the nerve cells of the retina.
→ Chambers: → Are filled with a watery fluid that gives shape to the eye and helps refract the light rays.
→ Retina: → The inner layer that contains the nerve cells, rods, cones & the bipolar cells.
↳ Rods: Sensitive to light but do not sense colour.
↳ Cones: Sense colour.
→ Vision defect - Glaucoma:
↳ Increase in intraocular pressure (IOP) often due to obstruction of outflow of aqueous humor (jelly-like fluid between lens & cornea).
↳ Untreated causes irreversible damage to the optic nerve & retinal fibres resulting in a progressive, permanent visual loss or blindness.
THE EAR - HEARING & EQUILIBRIUM:
Stapes (attached to the oval window).
Incus.
Malleus.
Vestibular nerve.
Cochlear nerve.
Vestibule.
Auricle. Cochlea.
Round window.
Ear canal.
Tympanic
membrane. Eustachian tube.
Tympanic
cavity.
External ear. Middle ear. Internal ear.
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 yelhsa. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$29.44. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now