Exam 3 Flashcards

1
Q

What do ganglia represent groups of what?

A

Groups of nerve cell bodies in the PNS
Unipolar

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2
Q

What are axon functions?

Which is the fastest and which is the slowest induction of impulses?

A

Function is conduction of stimuli

Fastest is thick and mylenated

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3
Q

What are sensory neurons and where do you find them?

A

They are unipolar
PNS
Found in posterior roots of spinal cord

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4
Q

What are interneurons?

A

Multi polar, gray matter of spinal cord
Connects SA and ME
Carries sensory information
No neuron = unisynaptic / knee jerk

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5
Q

Types of glia and comparison of those found in both CNS and PNS

A

Astrocytes, oligodenocyres, microglia = CNS

Schwann cells , satellite cells = PNS

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6
Q

Action potentials travel along the…

A

Wave of electricity, the travels from the cell body down the axon to the terminals

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7
Q

Mylan and unmyelinated axons are what

A

Mylan is faster transmission of signal between neurons

Unmylinated is slower

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8
Q

What are the Eppy, Perry, and Endoneurium and what do they in case?

A

Epi – spinal nerves
Peri- fascicles
Endo- axons

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9
Q

Look at the difference between mono and polysynaptic reflexes, and examples of each

A

Monosynaptic – no interneuron (arch reflex)

Polysynaptic– interneurons (knee jerk)

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10
Q

Where do you sell bodies of neurons lie in the spinal cord?

A

Gray matter

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11
Q

What are the name of the chemicals released at the axon terminals and what organelles carry them?

A

Chemicals – ACHL
Organelles – synaptic vesicles

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12
Q

Sulcus vs gyrus

A

Sulcus : dips/ valleys
Gyrus: mountains

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13
Q

The lobes of the brain and their major functions

A

Frontal – motor skills
Occipital - vision
Temporal – hearing
Parietal – smell sensory taste

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14
Q

BBB and its function

A

Blood brain barrier (astrocytes)

Shields brain from toxic substance, filters, supplies

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15
Q

Where is CSF produced?

A

Corroid plexus / 3rd 4th ventricles

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16
Q

Which is the second largest region of brain

A

Cerebellum

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17
Q

Corpora quadregimini : structure and function

A

Located in the midbrain
Vision and hearing
Superior colliculi= vision
Inferior = hearing

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18
Q

Falx cerberi vs cerebelli

A

Cerberi: separates the hemispheres of the brain

Cerebelli: surround cerebellum

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19
Q

How many spinal nerves and where does the spinal cord end?

A
  1. Total spinal nerves.
    Eight cervical
    12th thoracic
    Five lumbar
    Five sacral
    One coccigeal

Spinal cord ends at L2 – L3

20
Q

Function of nuclei in reticular formation

A

Wake cycles
Hiccups, yawning, arousal and consciousness, motor movements, sleep – wake cycles

21
Q

So bodies of the sensory neurons of the spinal nerves are located in what?

A

PNS

22
Q

What are the meningeal layers

A

Durham matter, archoid matter, Pia matter

Function is to protect and support the brain and spinal cord

23
Q

Dysfunction of corpus coliseum

A

Seizures/epilepsy

24
Q

What is cauda equine

A

Collection of nerves at end of spinal cord

25
Q

Which Meninges hugs the brain surface

A

Pia matter

26
Q

Two parts of the brain that are most involved in emotions are the

A

Hypothalamus/lympic system

27
Q

What part of the brain controls heart rate and respirations?

A

Medulla oblongata

28
Q

Disorder of balance is due to which cranial nerve

A

Vestibular nerve

29
Q

Differences between para and sympathetic nervous system

A

Para – rest and digest
Sympathetic – emergency (FFF)

30
Q

Where is the Blindspot in the eye?

A

The optic disc

31
Q

Cones versus rods in the eye

A

Cones see color in daylight
Rods at night time

32
Q

Dysfunctions of the eye(3)

A

Pink eye, cataract, glaucoma

33
Q

ADH is secreted by what gland

A

Hypothalamus – pituitary gland

34
Q

Thyroid is antagonistic to..

A

Parathyroid

35
Q

Adrenal medulla secretes what

A

Epinephrine and nor epinephrine

36
Q

In organic needed in goiter disease

A

Iodine

37
Q

Ultra structure feature of steroid secreting cells
What type of organelles are dominant give example of the gland

A

Gonads – testosterone/estrogen
Smooth endoplastic reticulum

38
Q

Need for blood formation.. as secretion that we know of

A

Erythropoietin

39
Q

Vitamin D is made in secreted by..

A

The skin

40
Q

Prolactin is secreted by which gland

A

Pituitary gland

41
Q

Where is the thyroid in the body?

A

The neck

42
Q

Neural secretions that you know of are..

A

Epinephrine and norepinephrine

43
Q

Why is thyroid secreted?

A

Regulation of metabolism

44
Q

FSH target Cell

A

Gonads

45
Q

Diabetes type one and type two
What is the predominant cell in pancreas?

A

Diabetes type one is insulin dependent
Diabetes type two is lifestyle

Predominant cell in the pancreas is beta cells

46
Q

Dysfunction of the thyroid

A

Hypothyroidism – Hashimoto
Hyper thyroidism – Graves’ disease

47
Q

What are the layers of the adrenal cortex?

A

Medulla and cortex

G (glamorous)
F(fabulous)
R(rich)