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Nervous System and Integument > 1.1 Development and Vasculature > Flashcards

1.1 Development and Vasculature Flashcards

1
Q

Recall the 3 germ layers formed during embryonic development?

A
  • Ectoderm
  • Mesoderm
  • Endoderm
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2
Q

Which of the germ layer (s) contribute to the nervous system development?

A

Ectoderm

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3
Q

What does the skin (epidermis) and the nervous system have in common?

A

They have the same precursor cells that the ectoderm uses to form part of the nervous system

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4
Q

Where do the m​otor (efferent) develop?

A

from basal lamina of neural tube

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5
Q

Where do the association (interneurons) develop?

A

develop from alar lamina of neural tube

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6
Q

Where do sensory (afferent) develop?

A

partly develope from neural crest in dorsal apesct

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7
Q

Cranial development is affected ny proximity of:

A
  1. Somites (skeletal elements, muscles, dermis)
  2. Neural crest-derived​ structures
  3. ectodermal plascodes
  4. dermal bone and snout structure
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8
Q

Examples of neural crest-derived​ structures>

A

teeth, facial dermis, Schwann cells,meninges​ sensory ganglia, autonomic ganglia

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9
Q

The overall​ most cranial part of brain, thickening occurs here?

A

Cephalic

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10
Q

forebrain =

A

prosencephalon

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11
Q

midbrain =

A

mesencephalon

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12
Q

hindbrain =

A

rhombencephalon

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13
Q

What is contained in the central cavity?

A

cerebrospinal fluid

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14
Q

What does the prosencepahlon curve ventrally in this picture?

A

There is a ventral curve due to limited​ space

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15
Q

What are the 2 parts of the forebrain?

A
  1. diencephalon
  2. telencephalon
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16
Q

where does the diencephalon expand?

A

ventrally and laterally

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17
Q

where does the ​telencephalon expand?

A

dorsally and laterally

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18
Q

midbrain =

A

mesencephalon

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19
Q

Pons =

A

metencephalon

20
Q

medulla =

A

myelencephalon

21
Q

The ____ expands and eventually comes to dominate the brain -cerebral cortex?

A

the telencephalon

22
Q

What are the 3 pillars / fibe​rs that connect the rest of the brain to the cerebellum?

A

Mesencephalon (midbrain)
Metencephalon (Pons)
Myelencephalon (Medulla)

23
Q

What structures are formed from the hindbrain?

A

medulla oblongata​
pons
cerebellum

24
Q

What part of the brain does not have much developmental change?

A

midbrain

25
Q

What 2 parts make up the forebrain?

A
  1. diencephalon
  2. telencephalon
26
Q

What structures are formed in the diencephalon?

A

epithalamus
thalamus
hypothalamus

27
Q

What structures are formed in the telencephalon?

A

cerebral cortex
limbic system
olfactory bulbs

28
Q

Which nerve has the soma in dorsal root ganglion, axon in the dorsal root

A

sensory nerve

29
Q

Which nerve has the soma in the ​ventral horn, axon in the ventral root

A

motor nerve

30
Q

which nerve is lateral​?

A

sensory

31
Q

Which nerve is medial?

A

motor

32
Q

Peduncle:​

A

3 pillars supporting cerebellum​, attchment area

33
Q

What can be seen once the cerebellum is removed?

A

4th ventricle

34
Q

Which way does the 4th ventricle expand?

A

laterally

35
Q

flocculus and nodule (archi):

A

balance,

36
Q

hemisphere (neocerebellum):

A

skilled movement, feedback to cerebral cortex
**Important in hunting animals

37
Q

vermis (palaeo):

A

proprioception, involved in feedback process for maintaining posture

38
Q

Is Met- rostral or caudal?

A

rostral

39
Q

Is Myel- rostral or caudal?

A

caudal

40
Q

What nerve does NOT go through the Thalmus?

A

Olfactory​ (smell)

41
Q

Thalmus =

A

Connection of sensory fibers that are going to cerebral hemisphere through the thalamus for us to make sense of it
ex: vision

42
Q

planning and anxiety = what lobe

A

frontal lobe

43
Q

sensory: cutaneous and taste = what lobe

A

parietal lobe

44
Q

hearing, language = what lobe

A

temporal lobe

45
Q

visuin = what lobe

A

occipital lobe

Nervous System and Integument (8 decks)

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