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Physiology Compre > Neurophysiology > Flashcards

Neurophysiology Flashcards

1
Q

Fight or Flight

A

Sympathetic Nervous System

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2
Q

Rest and Digest

A

Parasympathetic Nervous System

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3
Q

Adrenergic Neurons release _____

A

Norepinephrine (Sympa)

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4
Q

This Adrenoreceptor causes smooth muscle contraction

A

Alpha 1 receptors

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4
Q

Cholinergic Neurons release ______

A

Acetylcholine (Sympa or Para)

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5
Q

This Adrenoreceptor is seen in the heart and kidneys

A

Beta 1 Receptors

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5
Q

This Adrenoreceptor Inhibits release of Norepinephrine for presynaptic nerve terminals

A

Alpha 2 receptors

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6
Q

This Adrenoreceptor causes smooth muscle relaxation

A

Beta 2 Receptors

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7
Q

It is the Micturition Center, Pneumotaxic,
Apneustic Centers

A

Pons

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8
Q

It is the Vasomotor Center, Respiratory
Center, Swallowing,
Coughing & Vomiting Centers

A

Medulla

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9
Q

Sensory receptor for Pain

A

Nociceptors

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9
Q

Cell body of First order Neurons

A

Dorsal Root or Cranial Nerve Ganglia

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10
Q

Cell body of Second order Neurons

A

Spinal cord or brainstem

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11
Q

Cell body of third order Neurons

A

Relay Nucelus of Thalamus

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12
Q

Cell body of fourth order Neurons

A

Sensory Cortex

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13
Q

This somatosensory pathway use large myelinated fibers and decussates near the medulla

A

Dorsal Column-Medial Lemniscus Pathway

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14
Q

This somatosensory pathway uses smaller myelinated fibers and decussates immediately

A

Anterolateral Spinothalamic Tract

15
Q

Somatosensory pathway for:
* Touch sensations requiring
high degree of localization &
fine gradation of intensity
* Vibration
* Sensations that signal
movement against the skin
* Position Sense and Fine
Pressure
* Two –Point Discrimination

A

Dorsal Column-Medial Lemniscus Pathway

16
Q

Somatosensory pathway for:
* Pain;
* Temperature Sensation
* Light Touch and Pressure
Sensation
* Tickle and Itch Sensation
* Sexual Sensation

A

Anterolateral Spinothalamic Tract

17
Q

This Tactile Receptor encodes sensory for:
* Crude touch,
* temperature and pressure

A

Free Nerve Endings

18
Q

This Tactile Receptor encodes sensory for:
* low-frequency
(slow) vibration

A

Meissner Corpuscles

19
Q

This Tactile Receptor encodes sensory for:
* Gives steady-state
signals for continuous touch
* Localizes touch
sensation and to
determine texture

A

Merkel Disc

20
Q

This Tactile Receptor encodes sensory for:
* Movement of object on skin

A

Hair-end Organ

21
Q

This Tactile Receptor encodes sensory for:
* Heavy and prolonged touch
(detects sustained or STEADY
PRESSURE)

A

Ruffini Corpuscles

22
Q

This Tactile Receptor encodes sensory for:
* deep pressure
* high-frequency
(fast) vibration

A

Pacinian Corpuscles

23
Q

Neurotransmitter for Fast Pain

A

Glutamate

24
Q

Neurotransmitter for Slow Pain

A

Substance P

25
Q

The ability to bend light

A

Refractive Power

26
Q

Refractive power is measured in

A

Diopters

27
Q

What is the refractive power of the eye

A

59 Diopters

2/3 by Cornea (Fixed RP)
1/3 by Lens (Variable RP)

28
Q

Cutting which structure on the left side causes total blindness in the left eye?

A

Optic Nerve

29
Q

Cutting which structure causes blindness in the temporal fields of the left and right eyes?

A

Optic Chiasm

30
Q

Cutting which structure on the right-side causes blindness in the temporal field of the left eye and the nasal field of the right eye?

A

Optic Tract

31
Q

Sensitive to low-
intensity light
(night vision)

A

Rods

32
Q

Sensitive to high-
intensity light
(day, color vision)

A

Cones

33
Q

Part of the ear for sound localization and sound collection

A

Outer Ear

34
Q

The Three Auditory Ossicles

A

Malleus, Incus, Stapes

35
Q

It amplifies asound from llarge tympanic membrane going into smaller window

A

Auditory Ossicles

36
Q

Detects angular acceleration

A

Semicircular Canals

37
Q

Detects horizontal acceleration

A

Utricle

38
Q

Detect Vertical Acceleration

A

Saccule

39
Q
A

Physiology Compre (3 decks)

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