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BIOL1410 > Special Senses > Flashcards

Special Senses Flashcards

1
Q

What are the 3 structural components of the eye?

A

Fibrous Tunic, Vascular Tunic and the Nervous (Sensory) Tunic.

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2
Q

3 Parts of the Fibrous Tunic

A

Sclera, Cornea and the Conjunctiva

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3
Q

4 Parts of the Vascular Tunic

A

Choroid, Ciliary Body, Iris and Pupil

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4
Q

4 Parts of the Nervous (Sensory) Tunic

A

Outer Pigmented Layer, Inner Neural Layer, Fovea Centralis and Optic Disc

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5
Q

3 Layers of neuron’s in the Inner Neural Layer

A

Photoreceptors - rods (black and white) and cones (colour), Bipolar Cells and Ganglion cells.

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6
Q

Anterior Segment

A

Contains aqueous humour (plasma like)

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7
Q

Posterior Segment

A

Contains vitreous humour (gel like)

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8
Q

3 Parts of the External Ear

A

Auricle (pinna), external auditory canal (meatus), tympanic membrane (eardrum)

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9
Q

Middle Ear

A

Eustachian tube or pharyngotympanic tube

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10
Q

3 Ear Ossicles

A

Malleus, Incus and stapes

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11
Q

Inner Ear

A

Bony Labrinth which contains perilymph

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12
Q

3 Parts of the Bony Labyrinth

A

Semicircular canals (equilibrium), Vestibule (equilibrium) and Cochlea (hearing)

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13
Q

Second part of the Bony Labyrinth

A

Membranous labyrinth which contains endolymph

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14
Q

3 Parts of the Membranous Labyrinth

A

semicircular ducts (inside canals), utricle+saccule (inside vestibule) and cochlea duct (inside cochlea)

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15
Q

3 channels of the Cochlea’s coils

A

Scala Vestibuli (upper; perilymph), Scala Tympani (lower; perilymph), Cochlear duct (middle; endolymph)

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16
Q

3 corresponding membranes

A

Vestibular membrane (between cochlear duct and Scala vestibuli), Basilar membrane (between cochlear duct and Scala tympani) and Tectorial membrane (cover hair cells = receptors cells

17
Q

Receptors in the Inner Ear

A

Hair cells which synapse with neurons that send impulses to the brain via cranial nerve 8!😘

BIOL1410 (7 decks)

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