Sense Organs

Question 1

Sense organs at and near tendons of muscles

Answer 1

Proprioreceptors

Question 2

Sense organs in the internal organs

Answer 2

Enteroreceptors

Question 3

Sense organs that report mechanical stimuli

Answer 3

Mechanoreceptors

Question 4

Sense organs that report electromagnetic stimuli

Answer 4

Radioreceptors

Question 5

Sense organs that report chemical stimuli

Answer 5

Chemoreceptors

Question 6

Chemoteceptor/exteroreceptor, sends signals directly to the brain, C.N. 1

Answer 6

Olfactory sense

Question 7

Cell bodies with cilia in stratified epithelium, axon penetrates underlying tissue

Answer 7

Olfactory cells

Question 8

Non-sensory cells that support olfactory epithelium

Answer 8

Supporting cells

Question 9

Olfactory epithelium cells attached to basement membrane

Answer 9

Basal cells

Question 10

Form from olfactory placodes by invagination, lined with olfactory epithelium

Answer 10

Olfactory sacs

Question 11

Openings of the nasal cavity

Answer 11

Nares

Question 12

Rhipidistian synapomorphy that connects nasal cavity to oral cavity

Answer 12

Choanae

Question 13

Accessory chemical sense present in the oral cavity, has branches of CN 1

Answer 13

Vomeronasal organ

Question 14

Sense located in oral epithelium

Answer 14

Taste/gustatory

Question 15

Types of tastes sensed

Answer 15

Sweet, sour, salty, bitter, savory/umami

Question 16

Cranial nerves innervating taste pores

Answer 16

VII, IX, X

Question 17

Senses mediated by muscle spindles

Answer 17

Pain, touch, and temperature

Question 18

Nerve endings wrapped around specialized muscle fibers that report tension and position

Answer 18

Muscle spindles

Question 19

Uses neuromasts, innervated by CN VIII, the lateral line system that detects waterborne vibrations

Answer 19

Acousticolateralis/octavolateralis system

Question 20

Ampullary organs consisting of short lateral lines

Answer 20

Ampullae of Lorenzini

Question 21

3 functions of inner ear

Answer 21

Hearing, balance, and orientation

Question 22

2 components of outer ear

Answer 22

Pinna, external acoustic meatus

Question 23

3 components of middle ear

Answer 23

Stapes, middle ear cavity, Eustachian tube

Question 24

How the inner ear develops

Answer 24

Invagination of neurogenic placode

Question 25

The sacs and ducts of the inner ear that are filled with endolymph and contain the receptive cells for balance and hearing

Answer 25

Membranous labyrinth

Question 26

2 continuous chambers in the membranous labyrinth

Answer 26

Utriculus and sacculus

Question 27

Patches of neuromasts

Answer 27

Maculae

Question 28

3 ducts in different places in membranous labyrinth

Answer 28

Semicircular ducts

Question 29

Stalklike remnant of invagination passage that contains endolymph

Answer 29

Endolymphatic duct

Question 30

Type of unpaired eye, one or two in most non-amniotes on top of head

Answer 30

Median eyes

Question 31

Types of median eyes

Answer 31

Pineal and parietal

Question 32

Pineal eye becomes this in mammals and birds

Answer 32

Pineal gland

Question 33

Gland that produces melatonin

Answer 33

Pineal gland

Question 34

3 stages of eye development

Answer 34

Optic vesicle, optic cup, lens vesicle

Question 35

Sense organ on or near the surface of the organism

Answer 35

Exteroreceptors

Question 36

Overlying gelatinous secretion of the neuromast

Answer 36

Cupula

Question 37

Long extension of hair cells that extends from neuromast

Answer 37

Kinocilium

Question 38

Shorter extensions of hair cells extending from the neuromast

Answer 38

Stereocilia

Question 39

Name for individual receptor cells in neuromast

Answer 39

Hair cells

Question 40

Region of the brain that yields the eye

Answer 40

Diencephalon

Question 41

1st stage of embryonic eye development

Answer 41

Optic vesicle

Question 42

Structure that connects eye and brain

Answer 42

Optic stalk

Question 43

Invagination of the distal end of the optic vesicle during eye development

Answer 43

Optic cup

Question 44

Optic cup differentiates into

Answer 44

Outer pigment layer and inner neuronal layer

Question 45

Embryonic precursor to the lens of the eye

Answer 45

Lens vesicle

Question 46

Layer of eye that carries signals and allows light to pass

Answer 46

Neuronal layer

Question 47

Layer of eye that will differentiate into rods and cones

Answer 47

Pigment layer

Question 48

Responsible for changing the shape of the eye's lens

Answer 48

Zonule fibers

Question 49

Main point of focus of the eye

Answer 49

Fovea

Question 50

Folds that increase surface area

Answer 50

Lamellae