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Flashcards in basics 1 Deck (50)
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31

what has channels for venous drainage of the brain

dural venous sinuses of the cranial dura mater

32

what is located below arachnid mater

subarachnoid space where CSF circulates

33

what supplies blood to brain

internal carotids and vertebral arteries (anastomose to form circle of willis)

34

what supplies blood to the spinal cord

vessels arising from vertebral arteries and radicular arteries derived from segmental vessels

35

meningeal layers from superficial to deep

dura > arachnoid > pia

36

subarachnoid space located where

between arachnoid and pia mater

37

most significant blood supply to intercranial meninges

middle meningeal artery

38

dorsal roots carry

afferent signals

39

ventral roots carry

efferent v'E'ntral

40

dorsal root cell bodies are located where

dorsal root ganglion

41

ventral root cell bodies are located where

in spinal grey matter

42

spinal nerves leave vertebral canal through

intervertebral foramina

43

at what level does spinal cord end

between L1 and L2

44

H shape in spinal cord called

central canal (with dorsal and ventral horns)

45

what occurs at dorsal horns

termination of afferent neurons and origin of ascending pathways

46

only where do you find the lateral horn

thoracic and upper lumbar cord

47

lateral horn is made up of?

cell bodies of preganglionic neutrons belonging to the sympathetic division of the autonomic NS

48

what is found in white matter

ascending and descending tracts

49

ascending tracts include

dorsal columns
spinocerebrellar tracts
spinothalmic tracts

50

descending tracts include

lateral corticospinal tracts