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Confrontation and pupil testing is normal. Dilated fundus exam is also normal. Slit -lamp exam suggests some significant variation in corneal thickness; an optic section seems to be thinner inferiorly in the right eye and less pronounced in the left eye. Also you notice some vertical striae in the posterior cornea OS and a "greenish-brown" circular ring (see photos). You order corneal topography analysis.
Guiding Questions
1. What's an optic section? 2. Describe the anatomy and histology of the cornea. 3. What is the function of each layer of the cornea? 4. Why is the cornea transparent? 5. How does the composition of the sclera differ from the cornea? If the sclera is very thin (Stapholomata) or a piece of it is dried out, it becomes transparent. Explain. 6. What controls the hydration of the cornea? What is the thickness-hydration relationship? Do the thin areas seen by slit-lamp examination represent a change in hydration? 7. What are corneal striae? 8. What is the colored ring?
Assume you have been examining a new drug that binds to PPAR? and produces its beneficial effect (increased insulin sensitivity). When you give this chemical to mice, you see kidney damage.
What happens during gastrulation? A) The three embryonic tissue germ layers form. B) The blastula forms. C) The neural tube forms. D) The somites form.
How are estuaries different from freshwater and marine ecosystems? Name at least two ways.
If some cell-surface receptors, including cytokine receptors and notch, can rapidly signal to the nucleus by activating latent transcription regulators at the plasma membrane, why do most cell-surface receptors use long, indirect signalling cascades ..
A dominant allele, B, Causes blaze, a white forelock of hair in humans. The recessive allele fr albinism, a, prevents the formation of melanin in any part of the body, so the hair is white all over.
assume the responsibility of the director of environmental protection agency epa. list the most important actions for
q1. the neurotransmitter acetylcholine is made in the cytosol and then transferred into synaptic vesicles where its
what is the function of the casparian strip and what cheif function do the cells in the cortex serve and how do you know this?
The symptoms of toxoplasmosis often resemble those in infectious mononucleosis, with swelling of the lymph nodes, anorexia and a high lymphocyte count.
q1. the wolf population might overshoot equilibrium levels in a way analogous to the irruptive pattern commonly
Which of the following functions is shared by beta-carotene and vitamin E?
in 3-5 paragraphs discuss how you think the 4 ethical principles tie into one or more of the following topic areas
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