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Flashcards in Exam 4 Study Guide of the Eye Deck (53)
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1

The range of the visible wavelength is

400-700 nm

2

They can respond to

Varying luminance
sensitivity of form
movement
distance

3

The functions or modalities of an eye include

Sensitivity to minute changes in luminosity
Dark-adapted scotopic vision
Discrimination of form
Discrimination of movement
Color in light-adapted photopic vision

4

The paired eyes can perform

Panoramic vision
Binocular vision
Stereoscopic vision

5

The lateral walls of the two orbits diverge at approximately ___ degrees

90

6

Name the mucous membrane which lines the inner surface of the eyelids

Palpebral conjunctiva

7

Name the fibrous tissues extends from the orbital margin to the eyelids to protect the orbital contents

Orbital septum

8

Name the bones which forms the superior wall or roof of the orbit

Orbital part of the frontal bone
Lesser wing of sphenoid

9

All of the following form the medial wall of the orbit except:
- ethmoid bone
- lacrimal bone
- sphenoid bone
- palatine bone

Palatine bone

10

Name the four bones which form the medial wall of the orbit

Ethmoid, lacrimal, sphenoid, frontal

11

Name the features which is located between the lateral and inferior orbital walls

Inferior orbital fissure

12

The apex of the orbit is in the ___ of ___ bone

Optic canal of sphenoid bone

13

Name the bones which form the base of the orbital margin

Frontal, zygomatic, maxillary

14

The periorbita is continuous with the dura mater through the ___ and ___

Optic canal and superior orbital fissure

15

Name the the transparent structures which is attached to the anterior surface of the eyeball

Bulbar conjunctiva

16

The conjunctival sac is the space bounded by the ___ and ___

Palpebral and bulbar conjunctiva

17

The palpebral portion of the orbicularis oculi is in the connective tissue between the ___ and ___

Tarsi and skin of eyelids

18

The tarsal glands are located in the superior and inferior ___

tarsi

19

The ciliary glands are located in the margin of ___

Eyelids

20

Name the enzyme which is bactericidal in the lacrimal fluid

Lysozyme

21

The orbital and palpebral parts of the lacrimal gland are divided by

The tendon of the levator palpebrae superioris

22

Name the entire pathway of the parasympathetic secretomotor nerve from the cranial nucleus to the lacrimal gland

Superior salivatory nucleus, Facial n, Genicular ganglion, Greater petrosal n, Zygomatic n of maxillary, Zygomaticotemporal, Lacrimal n of ophthalmic, Lacrimal gland

23

Name the entire pathway of the sympathetic postsynaptic motor nerve to the lacrimal gland

Superior cervical ganglion, Internal carotid n, Internal carotid plexus, Deep petrosal n, N of the pterygoid canal, Pterygopalatine ganglion, Zygomatic n of maxillary, Zygomaticotemporal, Lacrimal n of ophthalmic, Lacrimal gland

24

Name the structure which conveys the lacrimal fluid from the lacrimal sac to the inferior nasal meatus

Lacrimal ducts

25

The outer fibrous layer of the eyeball consists of ___ and ___

Sclera and cornea

26

Name the structure which covers the anterior one sixth of the eyeball

Cornea

27

The vascular layer of the eyeball is called

Uvea or uveal tract

28

The vascular layer of the eyeball consists of what 3 structures

Choroid, ciliary body, and iris

29

Within the choroid, larger vessels are located internally. true or false

True

30

Name the innermost layer of the choroid

Choricocapillaris