Cerebellum (Little Brain)
- TERMINOLOGY
- CEREBELLUM

Cerebellum (Little Brain)

Microanatomy cerebellum

CEREBELLUM
- Cerebellar fissures
- Folia of cerebellum
- Hemisphere of cerebellum [H II - H X]
- Vallecula of cerebellum
- Vermis of cerebellum [I-X]
- Vestibulocerebellum
- Spinocerebellum
- Pontocerebellum
- Archicerebellum
- Paleocerebellum
- Neocerebellum
- Body of cerebellum
  - Anterior lobe of cerebellum
    - Lingula [I]
    - Precentral fissure; post-lingual fissure
    - Central lobule [II and III]
      - Anterior part; ventral part [II]
      - Posterior part; dorsal part [III]
    - Wing of central lobule [H II and H III]
      - Inferior part; ventral part [H II]
      - Superior part; dorsal part [H III]
    - Preculminate fissure; post-central fissure
    - Culmen [IV and V]
      - Anterior part; ventral part [IV]
    - Intraculminate fissure
      - Posterior part; dorsal part [V]
    - Anterior quadrangular lobule [H IV and H V]
      - Anterior part; ventral part [H IV]
      - Posterior part; dorsal part [H V]
    - Primary fissure; preclival fissure
  - Posterior lobe of cerebellum
    - Simple lobule [H VI and VI]
      - Declive [VI]
      - Posterior quadrangular lobule [H VI]
    - Posterior superior fissure; post-clival fissure
    - Folium of vermis [VII A]
    - Semilunar lobules; ansiform lobule [H VII A]
      - Superior semilunar lobule; first crus of ansiform lobule
    - Horizontal fissure; intercrural fissure
      - Inferior semilunar lobule; second crus of ansiform lobule
    - Lunogracile fissure; ansoparamedian fissure
    - Tuber [VII B]
    - Gracile lobule; paramedian lobule [H VII B]
    - Prebiventral fissure; prepyramidal fissure
    - Pyramis [VIII]
    - Biventral lobule [H VIII]
      - Lateral part; pars copularis [H VIII A]
    - Intrabiventral fissure; anterior inferior fissure
      - Medial part; dorsal paraflocculus [H VIII B]
    - Secondary fissure; post-pyramidal fissure
    - Uvula [IX]
    - Tonsil of cerebellum; ventral paraflocculus [H IX]
    - Posterolateral fissure
  - Flocculonodular lobe
    - Nodule [X]
    - Peduncle of flocculus
    - Flocculus [H X]
- Arbor vitae
- Cerebellar cortex
  - Granular layer
  - Purkinje cell layer
  - Molecular layer
- Cerebellar nuclei
  - Dentate nucleus; nucleus lateralis cerebelli
    - Hilum of dentate nucleus
  - Anterior interpositus nucleus; emboliform nucleus
  - Posterior interpositus nucleus; globose nucleus
  - Fastigial nucleus; nucleus medialis cerebelli
- Cerebellar peduncles
  - Inferior cerebellar peduncle
    - Restiform body
    - Juxtarestiform body
  - Middle cerebellar peduncle
  - Superior cerebellar peduncle
  - White substance of cerebellum
  - Cerebellar commmissure
  - Uncinate fasciculus of cerebellum

TERMINOLOGY

674	CEREBELLUM	CEREBELLUM
675	Fissurae cerebelli	Cerebellar fissures
676	Folia cerebelli	Folia of cerebellum
677	Hemispherium cerebelli [H II - H X]	Hemisphere of cerebellum [H II - H X]
678	Vallecula cerebelli	Vallecula of cerebellum
679	Vermis cerebelli [I-X]	Vermis of cerebellum [I-X]
680	Vestibulocerebellum	Vestibulocerebellum
681	Spinocerebellum	Spinocerebellum
682	Pontocerebellum	Pontocerebellum
683	Archicerebellum	Archicerebellum
684	Paleocerebellum	Paleocerebellum
685	Neocerebellum	Neocerebellum
686	Corpus cerebelli	Body of cerebellum
687	Lobus cerebelli anterior	Anterior lobe of cerebellum
688	Lingula cerebelli [I]	Lingula [I]
689	Fissura precentralis; fissura postlingualis	Precentral fissure; post-lingual fissure
690	Lobulus centralis [II et III]	Central lobule [II and III]
691	Pars anterior; pars ventralis [II]	Anterior part; ventral part [II]
692	Pars posterior; pars dorsalis [III]	Posterior part; dorsal part [III]
693	Ala lobuli centralis [H II et H III]	Wing of central lobule [H II and H III]
694	Pars inferior; pars ventralis [H II]	Inferior part; ventral part [H II]
695	Pars superior; pars dorsalis [H III]	Superior part; dorsal part [H III]
696	Fissura preculminalis; fissura postcentralis	Preculminate fissure; post-central fissure
697	Culmen [IV et V]	Culmen [IV and V]
698	Pars anterior; pars ventralis [IV]	Anterior part; ventral part [IV]
699	Fissura intraculminalis	Intraculminate fissure
700	Pars posterior; pars dorsalis [V]	Posterior part; dorsal part [V]
701	Lobulus quadrangularis anterior [H IV et H V]	Anterior quadrangular lobule [H IV and H V]
702	Pars anterior; pars ventralis [H IV]	Anterior part; ventral part [H IV]
703	Pars posterior; pars dorsalis [H V]	Posterior part; dorsal part [H V]
704	Fissura prima; fissura preclivalis	Primary fissure; preclival fissure
705	Lobus cerebelli posterior	Posterior lobe of cerebellum
706	Lobulus simplex [H VI et VI]	Simple lobule [H VI and VI]
707	Declive [VI]	Declive [VI]
708	Lobulus quadrangularis posterior [H VI]	Posterior quadrangular lobule [H VI]
709	Fissura posterior superior; fissura postclivalis	Posterior superior fissure; post-clival fissure
710	Folium vermis [VII A]	Folium of vermis [VII A]
711	Lobuli semilunares; lobulus ansiformis [H VII A]	Semilunar lobules; ansiform lobule [H VII A]
712	Lobulus semilunaris superior; crus primum lobuli ansiformis	Superior semilunar lobule; first crus of ansiform lobule
713	Fissura horizontalis; fissura intercruralis	Horizontal fissure; intercrural fissure
714	Lobulus semilunaris inferior; crus secundum lobuli ansiformis	Inferior semilunar lobule; second crus of ansiform lobule
715	Fissura lunogracilis; fissura ansoparamediana	Lunogracile fissure; ansoparamedian fissure
716	Tuber [VII B]	Tuber [VII B]
717	Lobulus gracilis; lobulus paramedianus [H VII B]	Gracile lobule; paramedian lobule [H VII B]
718	Fissura prebiventralis; fissura prepyramidalis	Prebiventral fissure; prepyramidal fissure
719	Pyramis [VIII]	Pyramis [VIII]
720	Lobulus biventer [H VIII]	Biventral lobule [H VIII]
721	Pars lateralis lobuli biventralis; pars copularis lobuli paramediani [H VIII A]	Lateral part; pars copularis [H VIII A]
722	Fissura intrabiventralis; fissura anterior inferior	Intrabiventral fissure; anterior inferior fissure
723	Pars medialis lobuli biventralis; lobulus parafloccularis dorsalis [H VIII B]	Medial part; dorsal paraflocculus [H VIII B]
724	Fissura secunda; fissura postpyramidalis	Secondary fissure; post-pyramidal fissure
725	Uvula [IX]	Uvula [IX]
726	Tonsilla cerebelli; paraflocculus ventralis [H IX]	Tonsil of cerebellum; ventral paraflocculus [H IX]
727	Fissura posterolateralis	Posterolateral fissure
728	Lobus flocculonodularis	Flocculonodular lobe
729	Nodulus [X]	Nodule [X]
730	Pedunculus flocculi	Peduncle of flocculus
731	Flocculus [H X]	Flocculus [H X]
732	Arbor vitae	Arbor vitae
733	Cortex cerebelli	Cerebellar cortex
734	Stratum granulosum	Granular layer
735	Stratum purkinjense	Purkinje cell layer
736	Stratum moleculare	Molecular layer
737	Nuclei cerebelli	Cerebellar nuclei
738	Nucleus dentatus; nucleus lateralis cerebelli	Dentate nucleus; nucleus lateralis cerebelli
739	Hilum nuclei dentati	Hilum of dentate nucleus
740	Nucleus interpositus anterior; nucleus emboliformis	Anterior interpositus nucleus; emboliform nucleus
741	Nucleus interpositus posterior; nucleus globosus	Posterior interpositus nucleus; globose nucleus
742	Nucleus fastigii; nucleus medialis cerebelli	Fastigial nucleus; nucleus medialis cerebelli
743	Pedunculi cerebellares	Cerebellar peduncles
744	Pedunculus cerebellaris inferior	Inferior cerebellar peduncle
745	Corpus restiforme	Restiform body
746	Corpus juxtarestiforme	Juxtarestiform body
747	Pedunculus cerebellaris medius	Middle cerebellar peduncle
748	Pedunculus cerebellaris superior	Superior cerebellar peduncle
749	Corpus medullare cerebelli	White substance of cerebellum
750	Commissura cerebelli	Cerebellar commmissure
751	Fasciculus uncinatus cerebelli	Uncinate fasciculus of cerebellum

CEREBELLUM

cerebellum

external features
- contains
  - two cerebellar hemispheres
    - united by vermis
- surface
  - superior surface
    - convex
  - inferior surface
    - shows a deep median notch vallecula
- each hemisphere is divided in to
  - 3 lobes
    - anterior lobe lies on anterior part of superior surface
    - middle lobe
      - situated on both its surfaces
        
        limited front by fissura prima
        
        limited by posterolateral fissure on inferior surface
    - flocculonodular lobe is the smallest lobe
      - present infront of posterolateral fissure
  - divided by fissures
    - horizontal fissure
      - separates superior surface from inferior surface
    - primary fissure
      - separates anterior lobe from middle lobe
    - posterolateral fissure
      - separates middle lobe from flocculonodular lobe
functional divisions
- lateral zone
  - associative areas or associative cortex
    - planning
    - programming
    - coordination
  - dento-rubro-thalamo-cortical tract
- intermediate zone
  - hands and feet
  - rubrospinal tract
- medial zone / vermis
  - controls muscles of
    - trunk
    - neck
    - shoulder
    - hip
introduction
- little brain
- controls the same side of the brain
- LOCATION
  - situated in posterior cranial fossa
  - infratentorial structure
morphological division
- archicerebellum
  - appear in evolution in aquatic vertebrates
  - flocculonodular node and lingula
  - controls axial musculature and bilateral movements
- paleocerebellum
  - appeared in terrestrial vertebrates with appearance of limbs
  - anterior lobe except lingula
  - pyramid + uvula of inferior vermis
  - controls tone,posture and crude movements
- neocerebellum
  - newest part of cerebellum
  - made up of posterior/middle cerbellum except pyramid and uvula
  - regulation of fine movements of body
parts of cerebellum
- lingula
- central lobule
  - ala (=wing)
- culmen
  - quadrangular lobule
- declive
  - simple lobule
- folium
  - superior semilunar lobule
- tuber
  - inferior semilunar lobule
- pyramid
  - bicentral lobule
- uvula
  - tonsil
- nodule
  - flocculus

Table of Contents

Cerebellum (Little Brain)

TERMINOLOGY

CEREBELLUM