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Flashcards in Brain Deck (83):
1

Prosencephalon

Forebrain

2

Mesencephalon

Midbrain

3

Rhombencephalon

Hindbrain

4

2 divisions of Prosencephalon

Diencephalon Telencephalon

5

2 divisions of Rhombencephalon

Metencephalon Myelencephalon

6

Division of Mesencephalon

None

7

Telencephalon is

Cerebrum

8

Diencephalon is

Thalamus

9

Mesencephalon is

Midbrain

10

Metencephalon is

Ponw Cerebellum

11

Myelencephaon is

Medulla

12

Neural Tube Differentiates into

brain and spinal cord

13

Neural Crest derivatives are

1. Sensory ganglia of cranial and spinal nervesl 2. neurolemmal sheath of peripheral nerves 3. meninges 4. pigment cells of retina 5. cells of adrenal medulla

14

4 septas of the meningeal layer of the Dura Mater

1. falx cerebri 2. tentorium cerebelli 3. falx cerebelli . diaphragma sella

15

Siickle shaped fold of dura matrr thst lies in the midline between the teo cerebral hemisphere. Its narrow anterior end is attached to the frontal crest and crista galli

Falx Cerebri

16

Crescent shaped fold of dura mater that roofs over the posterior fosda; covers the upper surface of the cerebellum and supportd the occipital lobes of the cerebral hemisphere

Tentorium cerebelli

17

Small sickle shaped fold of dura mater attached to the internal occipital crest and projects between the two cerebellar hemispheres

Falx cerebelli

18

small circular fold of dura mater thst forms the roof of the sella turcica

diaphragma sella

19

Sensory innervation of the dura mater

Trigeminal Nerve and first 3 cervical nerves

20

Primmary Motor Area is

Precentral Gyrus B.A. 4

21

Primary Somesthetic area

Post central gyrus B.A. 3,1,2

22

Primary visual area is

B.A. 17

23

Primary Auditory area is

B.A. 41, 42

24

Broca area is

Inferior frontal gyrus B.A. 44, 45 motor aphasia

25

Wernicke's area is

superior temporal gyrus B.A. 22 sensory aphasia

26

Primary Auditory Cortex is

Heschl Gyrus

27

3 divisions of the cerebellum

1. anterior lobe 2. posterior lobe 3. floculondular lobe

28

Anterior Lobe of Cerebellum Function

Paleocerebellum/Spinocerebellum - coordination of LIMB movement; regulation of muscle tone

29

Posterior Lobe of cerebellum function is

Neocerebellum/Cerebrocerebellum - coordination of voluntary movrments

30

Floculonodular Lobe of Cerebrllum function is

Arhicerebellum/Vestibulocerebellum - associated with equilibrium

31

Loss or Slowness of a voluntary movement

Bradykinesia

32

Hesitancy in starting a movement

Akinesia

33

Involuntary Movements

Dyskinesia

34

Ireegular, repetitive writhing movements

athethosis

35

Irregular, repetitive, jerking movements

chorea

36

Slow, sustained abnormal movement

dystonia

37

explosive, violent movement

ballismus

38

What spinal level is lumbar puncture done?

L3-L4 L4-L5

39

Damage in Parkinsons Disease

Substantia Nigra

40

Damage in Chorea

Striatal Neurons

41

Damage in Hemiballismus

Contralateral Subthalamic Nucleus

42

Location of Cranial Nerves

1 - supratentorial 2 - infratentorial 3,4 - midbrain 5,6,7,8 - pons 9,10,11,12 - medulla

43

Purely sensory cranial nerves

1,2,8

44

purely motor cranial nerves

3,4,6,11,12

45

mixed cranial nerves

5,7,9,10

46

cranial nerves with parasynpathetic component

3,7,9,10

47

Anterior CF: foramina of cribriform plate of ethmoid?

cranial nerve 1

48

Middle CF: optic canal

cranial nerve 2 and opthalmic artery

49

Middle CF: Superior orbital fissure

CN 3, 4, 6; opthalmic nerve (V1), opthalmic vein, lacrimal nerve, nasocilliary nerve, frontal nerve

50

Middle CF: Foramen Rotundum

Maxillary Nerve (V2)

51

Middle CF: Foramen Ovale

Mandibular Nerve (V3)

52

Middle CF: Foramen Spinosum

Middle Meningeal Artery

53

Posterior CF: Jugular Foramen

CN 9,10,11 - cranial root; sigmoid sinus; internal juular vein

54

Posterior CF: Hypoglossal Canal

CN 12

55

Posterior CF:Internal Acoustic Meatus

CN 7 and 8

56

Posterios CF: Foramen Magnum

Medulla, Meninges, Vertebral Arteries, CN 11 - spinal roots

57

Middle CF: Carotid Canal

Internal Carotid Artery

58

loss of sense of smell

CN 1

59

blindness, loss of direct pupillary reflex

CN 2

60

Deafness, Loss of balance, absemce of Vestibulo ocular reflex

CN 8

61

Diplopia - eye turned down and out; ptosis; dilated and fixed pupil

CN 3

62

Diplopia - extorsion of the eye; weakness of downward gaze

CN 4

63

Diplopia - medial deviation; Abductor paralysis

CN 6

64

facial hemianesthesia; paralysis of muscle of mastication; deviation of the jaw to the weak side; loss of general sensation of tongue (anterior 2/3l

CN 5

65

Facial paralysis, loss of corneal/blink reflex (eye closure); hyperacusis; dry mouth, loss of lacrimation, loss of taste (anterior 2/3)

CN 7 - Bells Palsy

66

Dysphagia, loss of taste and common sensation of tongue POSTERIORLY, loss of gag reflex

CN 9

67

Dysphonia, dyspnea, dysarthria, dysphagia, loss of gag reflex

CN 10

68

Weakness in turning head toward opposite side and shrugging shoulder/dropping of shoulder

CN 11

69

Hemiparalysis of the tongue, deviation towards the weak side

CN 12

70

Hyoid Cartilage

C4

71

Thyroid Cartilage

C5

72

Cricoid Cartilage

C6

73

Subclavian Is divided into 3 parts by what muscle?

Scalenous Anterior

74

First part of the subclavian Artery

medial to scaleneus anterior 1. vertebral 2. thyrocervical 3. internal thoracic

75

second part of subclavian artery

Behind the scaleneus anterior 1.costocervical

76

third part of the subclavian artery

lateral to scaleneus muscle no branches

77

Composition of Circle of Willis

Internal Carotid; Vertebral; Basilar Artery

78

Branches from Internal Carotid Artery

1. Ophthalmic 2. posterior communicating 3. anterior cerebral 4. middle cerebral

79

Branches from Vertebral

1. PICA 2. Ant/Post Spinal 3. Meningeal 4. Medullary

80

Branches of Basilar Artery

1. Posterior Cerebral 2. Superior Cerebellar 3. Pontine 4. Labyrinthine 5. AICA

81

Saccilar Dilatations of the walls of the arteries

Berry Aneurysm

82

Most Commo area of saccular aneurysm

Anterior part of circle of willis (anterior communicating, posterior communicating, or MCA)

83

Compression of oculomotor nerve by berry aneurysm is caused by?

1. posterior communicating 2. internal carotid artery 3. posterior cerebral artery