L26 Sensory system (Mechanoreception& electroreception)

Question 1

List the main anatomical structure of the external, middle and inner ear that are important for sound detection. Describe their function in few words.

Answer 1

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Question 2

Describe the sequence of sound transmission through the 3 bones in the middle ear.

Answer 2

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Question 3

List the main anatomical structures of the cochlea and explain how electrical signals are produced for low and high amplitude sound.

Answer 3

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Question 4

Explain how the cochlea codes for high and low frequency sounds.

Answer 4

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Question 5

Describe the structure of the lateral line in fish and explain how it detects the motion in the water.

Answer 5

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Question 6

Describe the structure and functions of the vestibular apparatus in higher vertebrates

Answer 6

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Question 7

Explain how rotation of the head is detected by the semicircular canals.

Answer 7

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Question 8

Explain how translational movements (linear movement of the head backwards and forwards or up and down) and static tilting of the head are detected by the utricle and saccule.

Answer 8

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Question 9

Describe the location, structure and function of the Ampullae of Lorenzini that are present in sharks

Answer 9

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