Neur 532 exam Flashcards
1
Q
The striatum consists of which 2 nuclear masses?
A
Caudate and lentiform nucleus
2
Q
According to Broadmanns 6 layer cortical structure, layer 1 is known as?
A
Molecular layer
3
Q
What are the 6 cortical layers - in chronoligical order
A
Molecular
External granular
External pyramidal
Internal granular
Internal pyramidal
Multiform
4
Q
Commissural fibres connect what?
A
the 2 hemispheres
5
Q
A
Anterior commissure
6
Q
The neocortix is what?
A
a 6 layered structure
7
Q
The primary somatic sensation area is found in what 3 brodmann areas?
A
3, 2, 1
8
Q
??
A
Choroid plexus of lateral ventricle
9
Q
??
A
Cingulate gyrus
10
Q
??
A
Body of fornix
11
Q
??
A
Central part of lateral ventricle
12
Q
??
A
Body of Caudate nucleus
13
Q
??
A
3rd ventricle
14
Q
??
A
Putamen
15
Q
??
A
Globus pallidus external
16
Q
??
A
Globus pallidus Internal
17
Q
??
A
Subthalamic nuclei
18
Q
??
A
Substantia nigra
19
Q
??
A
Hippocampus
20
Q
??
A
Optic tracr
21
Q
??
A
Globus pallidus
22
Q
??
A
External capsule
23
Q
??
A
Insular lobe
24
Q
??
A
Lentiform nucleus
25
??
Fornix
26
??
Caudate nucleus
27
??
Internal capsule
28
??
Globux pallidus
29
??
Anterior commissure
30
??
Choroid plexus of third ventricle
31
??
Choroid plexus
32
??
Putamen
33
What makes up the lentiform nucleus?
Globus pallidus
Putamen
34
What makes up the corpus striatum?
1. Caudate nucleus
2. Lentiform nucleus (putamen, globus pallidus)
3. nucleus accumbens
35
What does the sulcus limitans separate?
Posterior and anterior spinal cord segments
36
What are the key structures of the limbic system?
- Amydaloid body
- Fornix
- Mammillary body
- Cingulate gyrus
- Hippocampus
- Parahippocampal gyrus
- Septal nuclei
-
37
Review dentate gyrus, uncus and parahippocampus gyrus associations
38
Pathway of hippocampal trisynaptic circuit
1. Entorhinal cortex travels to dentate gyrus granule cells vis perforant pathway
2. Dentate gyrus travel to CA3 pyramidal cells via mossy fibres
3. CA3 travels to CA1 via schaffer collaterals
4. CA1 travels to subiculum
5. Subiculum travels to
39
What are the 4 primary brain vesicles?
- Prosencephalon
- Mesencephalon
- Rhombencephalon
- Neural tube
40
?? and what does it do?
Cuneate fasciculus
Upper limbs
T6 and above
41
?? and what does it do?
Gracalis fasciculus
Lower limbs
T6 and below
42
??
Posterior spinocerebellar
43
??
Anterior spinocerebellar
44
?? and what
Spino-olivary tracts
Sensory to cerebellum
45
?? and what?
Lateral spinothalamic tract
Pain and temp
46
?? and what
Anterior spinothalamic tract
Crude touch & pressure
47
?? and what do
Lateral corticospinal tract
Controls voluntary movement
48
?? and what do?
Rubrospinal tract
Fine motor touch
49
?? and what do?
Lateral reticulospinal tract
Inhibits contraction
Automated breathing
50
?? and what do?
Medial reticulospinal tract
Fascilitates muscle contraction
51
?? and what do?
Vestibulospinal tract
Balance, posture
52
?? and what do?
Tectospinal tract
Head & vision movements
53
?? and what do?
Anterior corticospinal tract
Voluntary movement
54
What are these white tracts?
Optic radiations to the primary visual cortex
55
What does the dorsal stream of the visual cortex associate in the parietal and frontal lobes?
WHERE AND HOW THINGS ARE
56
What does the VENTRAL STREAM of the visual cortex associate in the TEMPORAL association areas?
WHAT THINGS ARE AND OBJECT RECOGITION
57
What is anopia
A defect of the visual field
58
What is the reticular formation?
Diffuse group of neurons within the pons and medulla oblongata
59
What does the reticular formation receive?
Sensory information (somatic and visceral)
- General awareness
- Not specific
60
Where does the reticular formation ascend?
- Thalamus
- Hypothalamus
- Cortex
61
Where do descending tracts of the reticular formation descend?
Spinal cord
62
Does the reticular formation contain respiratory and cardiovascular regulating 'centres'? Y/N
YES
63
Is the reticular formation in clusters or loose cells?
Loose cells
64
What do the ascending pathways of the reticular formation do?
- Sorting sensory stimuli
- Determines where to focus attention
- Arousal (awakeness)
- Sleep & dreaming
- Filters unnecessary information
65
What do the descending pathways of the reticular formation do?
- Voluntary and involuntary movement
- Respiration, BP, HR
- Analgesic pain pathways
- ANS control
66
REVISE RETICULAR FORMATION IN MAMMALS
67
REVIEW
68
??
ANTERIOR LOBE
69
??
Cerebellar cortex
70
??
Arbor vitae
71
??
Posterior lobe
72
??
Floculolobular nodule
