ing, and Balance || o Question 23(of 37) 11 sing the terms provided, complete th

Question

ing, and Balance || o Question 23(of 37) 11 sing the terms provided, complete the paragraph about the anatomy of the eer The ear is composed of outer, middle, and inner parts. The large gathers sound waves of air and directs them into the to the spiral organ The middle earmebrane to the conduct and amplify the waves from the tympanic ear_ auditory ossicles external auricle To allow the same pressure in the outer and middle ear, the connects the middle ear to the pharynx, The sound waves are further conducted through the fluids of the in the inner ear external acoustic meatus Finally. some hair celis of the are stimulated oval window As certain hair cells are stimulated those receptors initiate nerve impulses to pass over the cochlear branch of the herve into the brain When nerve impulses arrive at the auditory cortex of the lobe of the Rese cerebrum, the impuises are interproted and the sensations of hearing are

Explanation / Answer

1.THE EAR IS COMPOSED OF OUTER,MIDDLE AND INNER PARTS.THE LARGE ..... GATHERS SOUND WAVES OF AIR AND DIRECTS THEM INTO THE ......

ANS : EXTERNAL AURICLE,EXTERNAL ACOUSTIC MEATUS

2.THE MIDDLE EAR ....CONDUCT AND AMPLIFY WAVES FROM THE TYMAPANIC MEMBRANE TO THE ....

ANS : AUDITORY OSSICLES,OVAL WINDOW

3.TO ALLOW THE SAME PRESSURE IN OUTER AND MIDDLE EAR ....CONNECTS MIDDLE EAR TO THE PHARYNX

ANS : PHARYNGOTYMPANIC TUBE

4.THE SOUND WAVES ARE FURTHER CONDUCTED THROUGH THE FLUIDS OF THE .....IN THE INNER EAR

ANS : COCHLEA

5.FINALLY SOME HAIR CELLS OF THE ...ARE STIMULATED

ANS : SPIRAL ORGAN

6.AS CERTAIN HAIR CELLS ARE STIMULATED THREE RECEPTORS INITIATE NERVE IMPULSES TO PASSOVER THE COCHLEAR BRANCH OF ...NERVE IN TO THE BRAIN .

ANS : VESTIBULOCOCHLEAR NEARVE

7.WHEN NERVE IMPUSES ARRIVE AT THE AUDOTORY CORTEX OF THE ....LOBE OF THE CEREBRUM THE IMPULSES ARE INTERPRETED AND THE SENSATIONS OF HEARING

ANS : TEMPORAL

[THERE IS SOME MISTAKE IN THE FIRST QUESTION ,AS IT IS NOT COMPLETE.

1.THE EAR IS COMPOSED OF OUTER,MIDDLE AND INNER PARTS.THE LARGE ..... GATHERS SOUND WAVES OF AIR AND DIRECTS THEM INTO THE ......TO THE

SO I HAVE GIVEN THE ANSWERS FOR 2 BLANKS [EXTERNAL AURICLE & EXTERNAL ACOUSTIC MEATUS]

SO IF ONE MORE BLANK IS THERE WE CAN FILL IT WITH TYMPANIC MEMBRANE .THAT MAENS

.THE EAR IS COMPOSED OF OUTER,MIDDLE AND INNER PARTS.THE LARGE EXTERNAL AURICLE

GATHERS SOUND WAVES OF AIR AND DIRECTS THEM INTO THE EXTERNAL ACOUSTIC MEATUS TO THE

TYMPANIC MEMBRANE.

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