Flashcards in Anatomy Deck (24):
Give the 3 layers of the eyeball wall
1. sclera and cornea
2. UVEA (choroid, iris and czilary body)
What attaches the lens to the ciliary body?
When is the lens relaxed?
when looking at something far away
- sympathetic, relax czilary muscle
When is the lens tight?
When the parasympathetic brings about accomodation to look at something near
Where does light focus on the eye?
Which nerve supplies tip of the nose?
Give some causes of compression of cervical part of sympathetic trunk that could result in horners?
root of neck trauma
engorged internal jugular vein
deep cervical lymph node mets
What divides the chambers of the eye?
Which angle is of importance for aqueous drainage?
What is the centre of the macula?
Where is the greatest density of cones?
What are the three layers of the retina?
Does the optic disc contain photoreceptors?
Name the end artery of the eye
the central retinal artery
Where do the intraocular muscles insert into?
How do you test the abducens nerve?
with eye movements the lateral rectus does
What eye movements can superior rectus do?
elevation (when eye is abducted)
What eye movements can inferior rectus do?
depression (when eye is abducted
How do you test the trochlear nerve?
eye movements done by superior oblique
- depression (when in adduction)
What eye movements can medial rectus do?
What eye movements can the inferior oblique do?
elevation (when in adduction)
Which muscles bring about pure elevation?
superior rectus and inferior oblique