last last min Flashcards
which lung cancer is weakly associated with smoking
Bronchogenic adenocarcinoma
pupil dilation
mydriasis
pupil constriction
miosis
Hyperopia
farsightedness- makes it hard to see things that are close
–> eyeball is shorter than normal or your cornea is curved too little.
Myopia
(short sightedness) an image of a distant object becomes focused in front of the retina, making distant objects appear out of focus
–> usually occurs when the eyes grow slightly too long
accomodation reflex
Focusing near objects requires greater refraction of light
–> contracting ciliary muscle so suspensory ligaments loosen
–> lens will become thicker
What is the difference between papilloedema and optic disc cupping?
papilloedema- pressure from back of eye
optic disc cupping- pressure from front of eye
which artery supplies retinal cells
central retinal arteries
falx cerebri
tentorium cerebelli
The falx cerebri (or falx) is the largest dural folds- a scythe-shaped band of dura matter that separates a part of the cerebral hemispheres. Its inferior boundary is defined by the inferior sagittal sinus and straight sinus.
The tentorium cerebelli (plural: tentoria cerebellorum) is the second largest dural fold after the falx cerebri. It lies in the axial plane attached perpendicularly to the falx cerebri and divides the cranial cavity into supratentorial and infratentorial compartments 1. It has free and attached margins