Head #2

Question 1

where is the base of the orbits

Answer 1

on the outside

Question 2

where is the apex of the orbits

Answer 2

on the inside

Question 3

the medial walls of the two orbits are seperated by what

Answer 3

ethmoidal sinuses and upper parts of the nasal cavity

Question 4

what angle are the lateral walls of the orbits

Answer 4

90 degrees

Question 5

the axis of the orbits diverge at what angle

Answer 5

45 degrees

Question 6

what controls light exposure

Answer 6

eyelids

Question 7

what position the eyeballs and raise the superior eyeball

Answer 7

extracoular muscles

Question 8

what surronds the eyeballs and muscles

Answer 8

orbital fascia

Question 9

what is the mucus membrane that lines the eyelid anterior and most of the lacrimal apparatus

Answer 9

conjunctiva

Question 10

what lubricates the eye ball

Answer 10

conjunctiva

Question 11

where does the lacrimal gland sit

Answer 11

in the lacrimal fossa

Question 12

what bones help to form the medial wall of the orbits

Answer 12

ethmoid
lacrimal
sphenoid
frontal

Question 13

what is easier to break the lateral or the medial wall of the orbits

Answer 13

the medial wall

Question 14

inferior wall of the medial orbit? of the lateral

Answer 14

maxilla

zygomatic

Question 15

lateral wall of the orbit is formed by what

Answer 15

zygomatic bone and greater wing of the sphenoid

Question 16

where the apex of the orbit specifically

Answer 16

the optic canal

Question 17

what can come out of the superior orbital fissure

Answer 17

CSF

Question 18

what are the bones that form the orbit lined by

Answer 18

periorbita

Question 19

any infection of the periorbita can spread where

Answer 19

anywhere

Question 20

where is the thinnest skin of the body

Answer 20

on the eyelid

Question 21

what is significant swelling and hemorrhage into the into the eyelids and extravasation of blood into periorbital skin

Answer 21

ecchymosis

Question 22

ecchymosis is common in who

Answer 22

boxers

Question 23

fractures of the orbits usually occur where

Answer 23

at the sutures between the bones that form the orbital margin

Question 24

a blow to the eye can displace the orbital walls and what is this called

Answer 24

a blowout fracture

Question 25

fractures of the medial wall may involve what

Answer 25

ethmoidal and sphenoidal sinuses

Question 26

fractures of the inferior wall may involve what

Answer 26

maxillary sinus

Question 27

what produces exophthalmos

Answer 27

tumors in the orbit

Question 28

the easiest entrance to the orbital cavity for a tumor in the middle cranial fossa is through what

Answer 28

the superior orbital fissure

Question 29

how much of the pupil is exposed when the eyeball is turned medially as far as possible

Answer 29

2.5cm