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RHSC 420 > Development & Embryology > Flashcards

Development & Embryology Flashcards

1
Q

Neurulation

A

beginning of the formation of the CNS, process of neural plate forming the neural tube

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2
Q

Neural Tube Defects

A

Spina Bifida & Encephalocele

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3
Q

Tracts that make up Spinal Nerve

A

General Somatic Afferent
General Visceral Afferent
General Somatic Efferent
General Visceral Efferent

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4
Q

Dermatome

A

area of skin supplied by a signal spinal nerve or spinal segment

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5
Q

Myotome

A

sum of all muscle fibres supplied by a single spinal nerve

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6
Q

Neural tube creates?

A

prosencephalon
mesencephalon
rhombencephalon

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7
Q

prosencephalon

A

telencephalon & Diencephalon

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8
Q

Mesencephalon

A

mesencephalon

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9
Q

rhombencephalon

A

metencephalon

myelencephalon

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10
Q

telecephalon

A

cerebral hemisphere

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11
Q

diencephalon

A

thalamus, hypothalamus, subthalamus

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12
Q

mesencephalon

A

midbrain

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13
Q

Metencephalon

A

pons & cerebellum

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14
Q

myelencephalon

A

medulla

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15
Q

what connects the brains 2 hemispheres?

A

corpos callosum

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16
Q

what type of fibres are the corpos callosum

A

commissural

17
Q

what fibres connect areas within one hemisphere?

A

association

18
Q

what fibres project to and from the cortex

A

projection

19
Q

what are the 3 meningeal layers

A

dura, arachnoid, pia

20
Q

what are the 3 spaces?

A

epidural (potential), subdural (potential), arachnoid (real)

21
Q

what can you find in the epidural space?

A

middle meningeal artery

22
Q

where would you find a:
1st order neuron
2nd order
3rd order

A

body - spinal cord
spinal cord to brain stem
thalamus to cortex

23
Q

what type of sensory information crosses midline at the spinal cord?
medulla?

A

pain and temp @ spinal cord

Discriminative touch, vibration, pressure

24
Q

2 Dural reflections of the skull

A

falx cerbri & tentorium cerebelli

25
Q

where are arachnoid granulations found and what do they do ?

A

found surrounding the sagittal sinus & in the longitudinal fissure , reabsorption of CSF

26
Q

what connects the arachnoid and pia mater?

A

arachnoid trabeculae

27
Q

What does Pia form?

A

a perivascular space by ensheathing the blood vessels

28
Q

explain what would be seen in an epidural hematoma

A

accumulation of blood between skull and dura due to a rupture of the middle menigeal artery, produces a len-shaped biconcave hematoma

29
Q

explain what would be seen in a subdural hematoma

A

accumulation of venous blood between dura and arachnoid, crescent shaped, can be acute or chronic

30
Q

explain what is seen in a subarachnoid hemorrhage

A

accumulation of blood in CSF space, blood is seen in sulci and gyri, can be non-traumatic or traumatic

31
Q

what is the limbic lobe comprised of?

A

cingulate gyrus & parahippocampal gyrus

32
Q

what produces CSF

A

ependymal cells of the choroid plexus

33
Q

what connects the 3rd and 4th ventricle

A

cerebral aqueduct

RHSC 420 (3 decks)

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