Special Sense Organs

Question 1

Organs specialized to receive sensory stimuli?

Answer 1

Special sense organs

Question 2

Receive visual stimuli?

Answer 2

Eyes

Question 3

Receives olfactory stimuli?

Answer 3

Nose

Question 4

Receives auditory stimuli?

Answer 4

Ears

Question 5

Receives gustatory stimuli?

Answer 5

Tongue

Question 6

Receptor organ for sense of touch (through Meissner’s corpuscle)

Answer 6

Skin

Question 7

Parts of the eye are derived from?

Answer 7

Ectoderm and mesoderm

Question 8

Single median region of neural plate ectoderm near rostral margin?

Answer 8

Optic field

Question 9

It connects with the diencephalon through the optic stalks?

Answer 9

Optic vesicles

Question 10

• double-walleed cups
• original lumen of optic vesicles became slit-like

Answer 10

Optic cups

Question 11

A gap along the optic stalk?

Answer 11

Choroid fissure

Question 12

A single layer of cuboidal or columnar epithelium

Answer 12

lens epithelium

Question 13

Lens fibers and lens epithelium produce lens proteins which are called?

Answer 13

Crystallins

Question 14

Corneal epithelium secretes a collagenous matrix called?

Answer 14

Primary stroma

Question 15

What does the corneal endothelial cells secretes causes the primary stroma to swell?

Answer 15

Hyaluronic acid

Question 16

It destroys the hyaluronic acid

Answer 16

Hyaluronidase

Question 17

From cranial part of the thin overlapping part of the optic cup?

Answer 17

Iris epithelium and muscles

Question 18

From the reduced opening of the optic cup?

Answer 18

Pupil

Question 19

From the caudal part of the overlapping portion of optic cup?

Answer 19

Cilliary apparatus

Question 20

Inner vascular layer?

Answer 20

Choroid

Question 21

Outer fibrous layer?

Answer 21

Sclera

Question 22

It provides attachment to muscles of the eyeball

Answer 22

Sclera

Question 23

From cephalic paraxial mesoderm?

Answer 23

Extrinsic muscles of eyeball

Question 24

From pigmented layer of retina?

Answer 24

Intrinsic muscles of eyeball

Question 25

From folds of skin that grow over the cornea?

Answer 25

Eyelids

Question 26

Space b/w eyelid and cornea?

Answer 26

Conjuctival sac

Question 27

From surface epithelium of eyelids that invaginates?

Answer 27

Lacrimal gland

Question 28

Cornea and sclera?

Answer 28

Fibrous tunic

Question 29

Choroid, ciliary body, ciliary processes and iris

Answer 29

Vascular tunic

Question 30

Retina?

Answer 30

Nervous tunic

Question 31

Transparent portion of the eyeball?

Answer 31

Cornea

Question 32

Stratified squamous epithelium nonkeratinized?

Answer 32

Corneal epithelium

Question 33

thick outer basal lamina (anterior limiting membrane)

Answer 33

Bowman's membrane

Question 34

regular DWFCT

Answer 34

Substantia propria

Question 35

Thin inner basal lamina (posterior limiting membrane)

Answer 35

Descemet's membrane

Question 36

Simple squamous or simple cuboidal

Answer 36

Corneal endothelium

Question 37

- occupies the caudal 2/4 of the eyeball? - white of the eye

Answer 37

Sclera

Question 38

Perforated area at the caudal pole of the eyeball

Answer 38

Lamina cribrosa

Question 39

Fibroelastic c.t. | outer

Answer 39

Episclera

Question 40

DWCFT | sclera (middle)

Answer 40

Sclera proper

Question 41

Similar to episclera with pigment cells | inner

Answer 41

Lamina fusca

Question 42

Devoted to nourishment and support for the retina?

Answer 42

Vascular tunic

Question 43

- cranial continuation of the choroid beginning at the ora ciliaris retinae?

Answer 43

Ciliary body

Question 44

Consists of basal pigmented cuboidal cells and superficial nonpigmented columnar cells?

Answer 44

Pars ciliaris retinae

Question 45

- pigmented diaphragm-like structure - forms the colored part of the eye

Answer 45

Iris

Question 46

Covered by endothelium which continues from the corneal

Answer 46

Anterior border (iris)

Question 47

Covered by bistratified epithelium (pars iridica retinae)

Answer 47

Posterior border (iris)

Question 48

Innermost tunic of the eye?

Answer 48

Nervous tunic

Question 49

- Part of the refractive media

Answer 49

lens

Question 50

- A ventromedial fold of conjunctive located in the medial canthus of the eye

Answer 50

Nictitating membranes

Question 51

A tubuloalveolar serous gland divided into lobules by loose or dense c.t. septae

Answer 51

Lacrimal glands

Question 52

Development of a single eye in the center of the head due to failure of the optic field to separate into 2 lateral eye forming regions?

Answer 52

Cyclopia

Question 53

Absence of eye due to failure of optic vesicles to form or to severe interference with normal growth of an optic cup

Answer 53

Anopthalmia

Question 54

Small underdeveloped eye due to vitaminn A deficiency in the mother.

Answer 54

Microphthalmia

Question 55

Loss of clarity of the lens

Answer 55

Cataract

Question 56

Consists of the pinna or auricle and the external auditory meatus

Answer 56

External ear

Question 57

Consists of the typanic membrane, typanic cavity, auditory ossicles and auditory tube.

Answer 57

Middle ear

Question 58

It lieas within the bony labyrinth excavated from the temporal bone and separated from the bone by perilyphatic space filled with perilymph

Answer 58

Inner or internal ear

Question 59

Sac-like structure made up of cartilage covered by skin

Answer 59

Pinna

Question 60

Pinna is present in birds T OR F

Answer 60

FALSE Pinna is absent in birds.

Question 61

From pinna to typanic membrane

Answer 61

External auditory meatus

Question 62

Oval, transparent membrane shaped like a cone

Answer 62

Tympanic membrane

Question 63

The 3 auditory ossicle?

Answer 63

Malleus, incus and stapes

Question 64

Derived from mesenchymal cells flanking VG 1 contributed by VA 1 and VA 2

Answer 64

Pinna

Question 65

It is derived from VC 1 or VG 1?

Answer 65

External auditory meatus

Question 66

It is derived from the narrow proximal portion of PP 1

Answer 66

Auditory tube

Question 67

From cells of VA 1?

Answer 67

Malleus and incus

Question 68

From cellsin the dorsal part of VA2

Answer 68

Stapes

Question 69

Dorsal wall evaginates?

Answer 69

Tubular endolymphatic duct

Question 70

The dorsal wall that connects with endolymphatic duct expands?

Answer 70

Vestibule

Question 71

It contains a crista with receptor cells for sense of balance

Answer 71

Ampulla

Question 72

It contains maculae?

Answer 72

Utricle and saccule

Question 73

It contains the organ of corti with receptor cells

Answer 73

Cochlear duct

Question 74

Organ of Corti with receptor cells connects with the saccule of the vestibule through a slender duct called?

Answer 74

Ducutus reuniens