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Pharm 204 > CNS and Brain > Flashcards

CNS and Brain Flashcards

1
Q

Medulla oblongata main function

A

-Regulates Homeostasis
-Relays information to the thalamus

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2
Q

Pons main function

A

Bridge connecting cerebellum to the brainstem

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3
Q

Mesencephalon main function

A

(Midbrain)
-Processing visual and auditory data
-Maintains consciousness
-Reflexive reactions

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4
Q

Diencephalon

A

Contains other important centres like Epithalamus, Thalamus, hypothalamus

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5
Q

Epithalamus main function

A

Part of the diencephalon, contains hormone pineal gland, Produces melatonin

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6
Q

Pineal gland

A

hormone gland within the epithalamus

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7
Q

Thalamus main function

A

Part of the diencephalon Relays information to cerebrum for processing

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8
Q

Hypothalamus main function

A

Part of the diencephalon involves emotions, self regulation and contains the pituitary gland

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9
Q

Cerebellum main function

A

Contains two hemispheres
-Coordination of muscle movements

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10
Q

Cerebrum main function

A

Part of the telencephalon
-contains conscious thought
-memory

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11
Q

Cerebrum structure

A

-Two hemispheres separated by longitudinal fissure
-contains sulci (groves)
-contains Gyri (ridges)

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12
Q

Order of matter in the brain

A

the cerebrum and cerebellum have similar structures of grey matter covering inner white matter

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13
Q

Septum pellucidum

A

partition that separates the two lateral ventricles (1 and 2)

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14
Q

3rd Ventricle location

A

In the diencephalon (middle of brain)

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15
Q

4th ventricle location

A

Between pons and cerebellum (wide and flat)

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16
Q

inter ventricular foramen

A

Connection between the lateral ventricles and the 3rd ventricle (same on each side)

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17
Q

Cerebral aqueduct

A

connection between the 3rd and 4th ventricle

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18
Q

anterior horn location

A

extends to frontal lobe

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19
Q

Posterior horn location

A

projects back into occipital lobe

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20
Q

Inferior horn location

A

extends to the temporal lobe

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21
Q

Ventricle lining

A

Ependymal cells

22
Q

Meninges

A

Dura mater
Arachnoid mater
Pia mater

23
Q

Dura mater structure

A

Outermost layer next to bone
-contains Dural sinus formed by periosteal and meningeal cranial dura

24
Q

periosteal cranial dura

A

Part of dura mater that forms outer layer of dural sinus

25
Q

Meningeal cranial dura

A

part of dura mater that forms the inner layer of dural sinus

26
Q

Dural sinuses

A

large veins contained within the dura mater

27
Q

Falx cerebri

A

Dura mater that extends to longitudinal fissure and contains superior sagittal and inferior sagittal sinus (along the midline)

28
Q

superior/ inferior sagittal sinus

A

Veins formed by dura mater falx cerebri within the longitudinal fissure

29
Q

Tentorium cerebelli

A

Dura mater that separates the cerebrum from cerebellum and forms transverse sinus

30
Q

Falx cerebelli

A

dura mater within the cerebellum to separate hemispheres contains occipital sinus

31
Q

Diaphragma sellae

A

dura mater the contains pituitary gland and anchors to sphenoid bone

32
Q

sphenoid bone

A

attachment point for diaphragm sellae dura mater

33
Q

Dural venous sinuses

A

Contain blood and drain into jugular veins

34
Q

Arachnoid mater main structure

A

Second layer that contains subdural space
-contains arachnoid granulations which drain CSF into veins

35
Q

arachnoid granulations

A

projections into the dural sinuses to drain CSF

36
Q

subarachnoid space

A

deeper and larger than the subdural space functions as structure for blood vessels

37
Q

Pia mater

A

attached to surface of brain held by astrocytes, is the closest covering

38
Q

hypothalamus BBB

A

has increased permeability for hormone release

39
Q

Pineal gland BBB

A

Has increased permeability for hormone glandular secretions (melatonin)

40
Q

Choroid Plexus BBB

A

Capillaries have no tight junctions
-Ependymal cells form a Blood-CSF barrier

41
Q

Posterior pituitary BBB

A

increased permeability for hormone secretion

42
Q

CSF function`

A

-Provides spacial buffer
-Transports nutrients to and from CNS cells

43
Q

CSF make up

A

plasma with few cells and proteins

44
Q

CSF production

A

Made by ependymal cells of choroid plexus

45
Q

choroid plexus ependymal cells

A

produce CSF and process and clean existing CSF

46
Q

Choroid plexus location

A

each ventricle has one but large ones in roof of 3rd and 4th

47
Q

Lateral aperture

A

Opening in the 4th ventricle to drain CSF to subarachnoid space

48
Q

Median aperture

A

Opening in the 4th ventricle to drain CSF to subarachnoid space

49
Q

Interthalamic adhesion

A

connects left and right of thalamus

Pharm 204 (19 decks)

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