1. Compiled by MF Dauzvardis
Brain Impractical Uno
Gross Brain Structures
Compiled by MF Dauzvardis

4. Cerebellum
Covers the fourth ventricle, responsible for the initiation and planning of movement, cerebellar signs are ipsilateral, midline lobe is called vermis, highly crenated cortex is called “arbor vitae”, key cells = pyramidal, granular, and molecular

6. Pineal
Secretes melatonin, seat of the soul, biological clock?, third eye in some fishes and amphibians.

8. Medulla
Just rostral to cervical cord, contains critical breathing centers, fed by vertebral and pica arteries (lateral wallenberg syndrome when pica is blocked)

10. Pons
“bridge” Covered largely by the 4th ventricle and the cerebellum. Fed in part by the basilar artery, Many cortical pontine fibers end in the pontine gray nuclei which in turn project to the cerebellum via the MCP

12. Midbrain
Key features: cerebral peduncles, aqueduct of Sylvius, substantia nigra, tectum (inferior and superior colliculi) red nucleus, CN III, IV

14. Fourth ventricle
Contains csf, choroid plexuses, foramen luscka(lateral) and magendie(medial) lead to cisterna magna and subarachnoid space. CSF leaves midbrain via aqueduct of Silvius

16. Aqueduct of Silvius
Connects 4th ventricle to 3rd ventricle, obstruction can lead to hydrocephaly, surrounded by periaqueductal gray (PAG)—related to pain

18. 3rd ventricle
Filled with CSF, sits between thalami and enters hypothalamus, connects to lateral ventricles via foremen of monroe, contains some choroid and also the stria medullaris thalami which connect habenula to septal nuclei

20. Tectum
Consists of superior and inferior colliculi, don’t forget SLO-AIM

22. Medulla
Just rostral to cervical cord, contains critical breathing centers, fed by vertebral and pica arteries (lateral wallenberg syndrome when pica is blocked)

24. Pons
“bridge” Covered largely by the 4th ventricle and the cerebellum. Fed in part by the basilar artery, Many cortical pontine fibers end in the pontine gray nuclei which in turn project to the cerebellum via the MCP

26. Midbrain
Key features: cerebral peduncles, aqueduct of Sylvius, substantia nigra, tectum (inferior and superior colliculi) red nucleus, CN III, IV

28. Cerebellum
Covers the fourth ventricle, responsible for the initiation and planning of movement, cerebellar sighs are ipsilateral, midline lobe is called vermis, highly lobulated cortex is called “arbor vitae”, key cells = pyramidal, granular, and molecular

30. 4th ventricle
Contains csf, choroid plexuses, foramen luska(lateral) and magendi(medial) lead to cisterna magna and subarachnoid space. CSF leaves midbrain via aqueduct of Silvius

32. Aqueduct
Connects 4th ventricle to 3rd ventricle, obstruction can lead to hydrocephaly, surrounded by periaqueductal gray (PAG)—related to pain

34. 3rd ventricle
Filled with CSF, sits between thalami and enters hypothalamus, connects to lateral ventricles via foremen of monroe, contains some choroid and also the stria medullaris thalami which connect habenula to septal nuclei

36. Tectum
Consists of superior and inferior colliculi, don’t forget SLO-AIM

38. Medulla

40. Pons

42. Midbrain, interpeducular fossa

44. Cerebellum

46. Temporal lobe

48. mammillary bodies

50. optic chiasm

52. Pia mater

54. I

56. II

58. III

60. IV

62. V

64. VI

66. VII

68. VIII

70. IX, X, XI

72. Location of XII, between pyramid and olive

74. Blood vessels, MCA

76. Flocculus

79. Cerebellum (vermis)

81. Floor of 4th ventricle

83. Cerebellar peducles
Superior (brachium conjunctivum), Middle (brachium pontis), Inferior (restiform body)

85. Superior and inferior colliculi
Slo-aim superior colliculi, lat geniculate, optic stuff auditory stuff, inf colliculus,med geniculate,

87. Pineal

89. Thalami
Major relay station for sensory information

91. Lateral geniculate for visual relay

93. Area of medial geniculate, relay for audition

95. Area of vestibular nuclei—remember inferior vestibular nucleus is “peppered”

97. Pulvinar nucleus of thalamus

99. Obex—opening of central canal into 4th ventricle

101. Cerebral peduncle—connects cerebrum to brainstem—mainly descending motor fibers. Rostrally it turns into the internal capsule

103. Brachium(arm) of the superior colliculus

105. Brachium of the inferior colliculus

107. 3rd ventricle

109. Genu of corpus collosum

111. Anterior limb of internal capsule

113. Genu of internal capsule

115. Posterior limb of internal capsule

117. Splenium of corpus collosum

119. Visual cortex

121. Head of caudate

123. Putamen

125. Globus pallidus

127. Insula

129. Thalamus

131. Columns of fornix—hippocampus to mammilary bodies