Behavioral Science 2.3

Question 1

Vestibular sense

Answer 1

Rotational and linear acceleration

Question 2

Pinna(auricle)

Answer 2

Cartilage portion of the outer ear channel sound into the external auditory canal

Question 3

Tympanic membrane

Answer 3

Vibrates in phase with external sounds. Separates outer and middle ear.

Question 4

Ossicles

Answer 4

Small bones that transmit and amplify the vibration of the tympanic membrane to the inner ear.
Incus, malleus,& stapes

Question 5

Inner ear

Answer 5

Cochlea, vestibule, & semicircular canals

Filled with endolymph and sits in perilymph fluid

Question 6

Cochlea

Answer 6

Composed of threeparts called scalae. The center scalae how is the hearing apparatus called the organ of Corti

Question 7

Organ of Corti

Answer 7

Rests on the basilar membrane which transmits sounds from the outer scalae

Question 8

Vestibule

Answer 8

Made of utricle and saccule. Sense linear acceleration

Have modified hairs covered in otoliths that resist acceleration to determine bodily acceleration

Question 9

Semi circular canals

Answer 9

Rotational acceleration.

Sensed by looks oriented perpendicular to one another.

Question 10

Auditory pathway

Answer 10

Information passes from vestibulochlear nerve to brain stem->medial geniculate nucleus -> auditory cortex, superior olive, and inferior colliculus (reflex)

Question 11

Place theory

Answer 11

Hairs closer to the window sense high pitch sounds where hairs deeper into the cochlea sense low pitch sounds