Term
| What is the palpebral conjunctiva divided into? |
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Definition
| the marginal tarsal portion and the orbital portion |
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Term
| Is the conjunctiva loosely or tightly attached? |
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Definition
| The conjunctiva is loosely attached and hence can become swollen or chemotic |
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Term
| What is swelling of the bulbar conjunctiva forming a swelling around the iris of the eye? |
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Definition
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Term
| What type of glands are in the lacrimal caruncle? |
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Definition
| large sebaceous glands similar to the glands of Zeiss and Moll |
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Term
| What are the two layers of the conjunctiva made up of? |
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Definition
1. Stratified Columnar epithelium
2. Lamina propria
Adenoid Layer
Fibrous Layer
See Slide 13 of Combined Test 2 Documents |
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Term
| What does adenoid tissue in the conjunctiva do to the conjunctiva when it develops at 3 months of age? |
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Definition
| It makes the conjunctiva highly irregular |
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Term
| What do lymphatic follicles of the bulbar and orbital portion of the palpebral conjunctiva indicate? |
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Definition
| Lymphatic follicles are only present in childhood and in response to inflammation (e.g. follicular conjunctivitis) |
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Term
| What part of the conjunctiva contains the adenoid tissue of the lamina propia? |
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Definition
| bulbar conjunctiva and the orbital portion of the palpebral conjunctiva |
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Term
| Which portion of the conjunctiva contains the fibrous part of the lamina propia layer of the conjunctiva? |
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Definition
| The part of the palpebral conjunctiva that is inner to the tarsal plate. |
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Term
| Which part of the conjunctiva contains the smooth palpebral muscles of Mueller? What type of innervation innervates the smooth palpebral muscle of Mueller? |
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Definition
| The fibrous layer of the lamina propria which is located inner to the tarsal plate of the palpebral conjunctiva. The smooth palpebral muscle of Mueller is sympathetically innervated. |
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Term
| Where are the goblet cells of the conjunctiva? |
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Definition
| Goblet cells are most often found near the fornix. They are absent in the margin of the eyelid and the corneo-scleral limbus. They are more frequent in the palpebral conjunctiva than the bulbar. |
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Term
| What do the glands of Krause secrete? |
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Definition
| aqueous, same as the lacrimal gland |
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Term
| Where are the glands of Krause located? |
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Definition
Deep in the corneal stroma (substantia propria) or temporal 1/3 of the conjunctiva and especially around the fornix |
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Term
| What do the glands of Wolfring and Manz secrete? |
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Definition
| a mucinous substance similar to that of the goblet cells |
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Term
| What vessels nourish the eyelids? |
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Definition
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Term
| What does the peripheral arcade nourish? |
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Definition
| the bulbar conjunctiva and the conjunctiva of the fornix |
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Term
| What vessels form the superficial (conjunctival) and deep (episcleral) pericorneal plexuses? |
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Definition
the anterior conjunctival branches of the 7 ciliary arteries |
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Term
| How do you differentiate the posterior conjunctival vessels from iritis? |
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Definition
| Posterior conjunctival vessels dilate during infection and appear red because of the their superficial location and move with the conjunctiva. You can constrict them with a vasoconstrictor to differentiate them from iritis. |
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Term
| Which conjunctival vessel is injected during inflammations of the iris, ciliary body, and in closed angle glaucoma? |
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Definition
| The posterior portion of the episcleral pericorneal plexus. |
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Term
| Which conjunctival vessels is injected from corneal inflammations? |
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Definition
| The anterior portion of the episcleral of the precorneal of the anterior ciliary areteries of the musclar arteries of the opthalmic arteries. |
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Term
| What will severe inflammation always produce because the anterior and posterior conjunctival arteries are joined? |
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Definition
| Injection of both ciliary and conjunctival vessels |
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Term
| What nerve is responsible for the sensory innervation of the superior palpebral conjunctiva medially? laterally? |
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Definition
| The bulbar conjunctiva is innervated by the frontal nerve by way of supratrochlear nerve medially and the lacrimal nerve laterally. Both are branches of the opthalmic nerve. |
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Term
| What type of innervation is in the bulbar conjunctiva? |
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Definition
sympathetic nerves that follow the blood vessels and sensory nerves |
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Term
| What innervates the lateral inferior palpebral conjunctiva? |
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Definition
| the lateral branch of the lacrimal nerve (opthalmic division) |
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Term
| What sensory innervates the medial inferior palpebral portion of the conjunctiva? |
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Definition
| the infraorbital nerve (maxillary division) |
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Term
| What innervates the conjunctiva in the corenoscleral limbus? |
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Definition
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Term
| What is the purpose of the conjunctival junction to Tenon's capsule? |
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Definition
| to permit mobility of the globe with maintenance of the barrier |
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Term
| What joins the conjunctiva with Bowman's layer of the cornea at the limbus? |
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Definition
| Loose vascular stromal junciton |
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Term
| Where is Tenon's capsule? |
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Definition
| underneath the stroma of the conjunctiva |
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Term
| What type of fibers make up the sclera? |
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Definition
| The sclera is connective tissue made up fibroblasts embedded in a matrix of collagen and elastic fibers with several different types of peptidoglycans interspersed |
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Term
| What structures are the episcleral and deep scleral plexus posterior to? |
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Definition
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