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Sense Organs > Revision > Flashcards

Revision Flashcards

1
Q

Describe the neuron composition of the optic disk

A

Area of retina where optic nerve (neuron axons) exit eye. No photoreceptors (rods, cones) no vision

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2
Q

Describe the neuron composition of the fovea

A

Centre of macula
Highest concentration of cones (photoreceptors)

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3
Q

Name the duct that connects the eye with the nasal cavity

A

Nasolacriminal duct

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4
Q

Explain why it is good practise to block off the nasolacrimal duct when administering eye drops

A

Prevent external medication becoming an internal medication

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5
Q

Explain why upper respiratory tract infections often lead to problems with the middle ear

A

Pathogens spread from nosopharynx to middle ear through auditory tube

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6
Q

Explain the consequences of the hair cells in the spiral organ being damaged

A

Hearing loss

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7
Q

Name the subdivision of the ANS that enables the body to manage unusual stimuli

A

Sympathetic

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8
Q

List the functions of the E division (flight, flight, freeze)

A

Exercise
Excitement
Emergency
Embarrassment

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9
Q

Name the subdivision of the ANS that conserves energy, calms the body, acts more locally and maintains daily necessary functions

A

Parasympathetic

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10
Q

List the functions of this D division (housekeeping)

A

Digestion
Diuresis
Defaecation

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11
Q

Taste cells in the taste buds are known as gustatory cells

A

True

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12
Q

Semi circular ducts monitor rotational movements of the head

A

True

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13
Q

The vestibule (otolithis) is sensitive to gravity and linear acceleration

A

True

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14
Q

The inner ear contains the ossicles (malleus, incus and stapes)

A

False

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15
Q

The photoreceptors of the eye are known as rods and plates

A

False

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16
Q

The effects of the parasympathetic or D division for the ANS are more localised and specific than the sympathetic

A

True

17
Q

The sympathetic nervous system is often referred to as the “fight or flight” system or the E divisions of the ANS

A

True

18
Q

The sympathetic nervous system stimulates digestion

A

False

19
Q

Things we see with the left eye are perceived only in the right occipital lobe

A

False

20
Q

The middle ear is filled with air, but the membranous labyrinth of the cochlea and semi circular canals are filled with liquid (endolympth and perilymph)

A

True

21
Q

An adren medication would mimic

A

Sympathetic Nervous system

22
Q

A cholinergic medication would mimic

A

Parasympathetic nervous system

Sense Organs (2 decks)

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