Lab: Ears/Sound

Question 1

sound waves are detected by…

Answer 1

mechanoreceptors

Question 2

a type of mechanoreceptors found commonly in ears

Answer 2

hair cells

Question 3

in the hair cells,
s——– get physically perturbed by neurotransmitters that causes the cell to be alters or stimulated

Answer 3

stereocilia

Question 4

a type of mechanoreceptor found in fish that reacts to the vibrations in the water

Answer 4

lateral line

Question 5

along the lateral line, clumps of hair cells are referred to as
n———; looks like a tiny jellyfish

Answer 5

neuromasts

Question 6

vibrations push on the c—-, bending and triggering signals in the nervous system; looks like the top of a jellyfish

Answer 6

cupula

Question 7

connected at the bottom of a hair cells is what kind of neurons

Answer 7

sensory neurons

Question 8

simple ear found on animals (grasshoppers) that appear as a mass outside of the head

Answer 8

tympanal organs

Question 9

found in the inner ear of vertebrae, it separated into many sensory structures

Answer 9

vertebrate neuromasts

Question 10

term for the outer ear; earlobe

Answer 10

exterior auricle

Question 11

allows for air to move into the skull

Answer 11

auditory canal

Question 12

collects and transmits sound waves to sensory receptors; eardrum

Answer 12

tympanic membrane

Question 13

In birds, a single bone is used to funnel vibrations into the inner ear

Answer 13

oval window

Question 14

first thing behind the eardrum in a mammalian ear

Answer 14

malleus

Question 15

second thing behind the eardrum in a mammalian ear

Answer 15

incus

Question 16

connects the incus to the tympanic cavity

Answer 16

stapes

Question 17

teardrop like loops that stem from cochlea

Answer 17

semicircular canals

Question 18

spiral cavity in the inner-most ear, conch shell appearance

Answer 18

cochlea

Answer 19

organ of corti