Cerebellum & Basal Ganglia

robbypowell's version from 2015-07-07 01:58


Question Answer
what is Arbor Vitae?fancy name for white matter or myelinated portions of Cerebellum
What parts of cerebellum are associated with Subconscious movement of Skeletal Muscle?Anterior and posterior lobes
What part of Cerebellum is associated with equilibrium or balance?Flocculonodular nodes (lobes)
What is between the two hemispheres of the Cerebellum?Vermis
What lobe (or nodule) is viewed from the inferior view of cerebellum?Flocculonodular node (lobe)
Inferior Cerebellar Peduncle connects what to what?Cerebellum to Medulla (this peduncle aka Restiform Bodies)
Middle Cerebellar Peduncle connects what to what?Cerebellum to Pons (this peduncle aka Brachium Pontis)
Superior Cerebella Peduncle connects what to what?Cerebellum to Midbrain & Thalamus (this peduncle aka Brachium Conctivum)
Which Cerebellar Peduncle CANNOT be seen from the Ventral view?Superior Cerebellar Peduncle (Brachium Conjuctivum) (connects Cerebellum to Midbrain & Thalamus)
What are the 4 Nuclei (gray matter islands within Arbor Vitae) of the Cerebellum from Medial to Lateral?Fastigial, Globose, Emboliform, Dentate (FGED)(Fast Girls Eat Dick)
What are the 2 interposed cerebellar nuclei that are part of Spinocerebellum (position and tone)?Globose & Emboliform
What nucleus of the cerebellum is associated with Skills & Sequences of movement?Dentate Nuclues (saw-like)
What nucleus is part of the cerebrocerebellum? What is it associated with (function)?Dentate Nucleus, Skills & Sequences of movement
What nucleus of the cerebellum is associated with eye movements in response to head movement?Fastigial Nucleus (vestibulocerebellum)
What is the most LATERAL interposed nucleus of the cerebellum?Dentate Nucleus (Cerebrocerebellum)(Skills & Sequence of Movement)
What is the Vermal nucleus of Cerebellum?Fastigial (b/c Medial and in Vermis)
What are the 2 ParaVermal interposed Nuclei of Cerebellum?Globose and Emboliform Nuclei (b/c just lateral to Vermis)
What is the Lateral nucleus of Cerebellum?Dentate Nucleus (b/c lateral most interposed Nucleus)
What is the Interposed Nucleus connected to?(in Cerebellum) connected to spinal cord
What is the major function of cerebellum?balance of the body
3 Functional divisions of cerebellum?Cerebrocerebellum, Spinocerebellum, Vestibulocerebellum
Which nucleus related to Spinocerebellum?Interposed nucleus (Globose and Emboliform Nuclei)
Which nucleus related to Vestibulocerebellum?Fastigial Nucleus
Which nucleus related to Cerebrocerebellum?Dentate Nucleus
What is the function of the Spinocerebellum?1. receive proprioceptive info 2. regulate muscle tone
What is the function of the Vestibulocerebellum?1. maintain balance 2. regulate head/Eye movement relationship
What is the function of the Cerebrocerebellum?1. rec. cerebral input via pons 2. muscle movement 3. planning & coordination
What is the function of the Dentate Nucleus?Skills & Sequences of Movement, esp. for Reflexes
What the function of the Fastigial Nucleus?Eye movement (in response to head movement)
What are the 2 functions of the Interposed Nucleus?1. Receive proprioceptive info 2. Regulate muscle tone
What part of brain (general) is associated with Motor Learning and Motor Skills?Cerebellum
What anatomical portion of Cerebellum is associated with the Vestibulocerebellum?FLOCCULONODULAR LOBE (node)
What anatomical portion of Cerebellum is associated with the Cerebrocerebellum?Lateral Hemisphere of Cerebellum
What anatomical portion of Cerebellum is associated with the Spinocerebellum?Vermis & Paravermis (paravermis = intermediate)


Question Answer
Vestibulocerebellum1. maintenance of equilibrium 2. Regulation head/eye conjugate movements
Spinocerebellum1. Receives proprioceptive info 2. Regulates muscle tone
Cerebrocerebellum1. receives cerebral input via Pons 2. Muscle movement (involved) 3. Planning and coordination (involved)


Question Answer
What are the 2 tracts carrying the “major” Afferent information (proprioceptive) to the Cerebellum?Dorsal Spinocerebellar & Ventral Spinocerebellar (coming from spinal cord)
How does the Dorsal Spinocerebellar tract enter Cerebellum (which peduncle?)Inferior Cerebellar Peduncle (associate w/ Medulla)
How does the Ventral Spinocerebellar tract enter Cerebellum (which pedeuncle?)Superior Cerebellar Peduncle
Cortico-Ponto-Cerebellar is made up of what type of fibers relative to the Cerebellum?AFFERENT ONLY
The signal carried by fibers of the middle cerebellar peduncle originate where?CEREBRAL cortex
What are the 2 Efferent tracts associated with the Inferior Cerebellar Peduncle (relative to Cerebellum)?Cerbello-Vestibular (fastigial nucleus to vestibular nuclei) (Ocular motor nuclei & Spinal cord) Cerbello-Reticular (fastigial nucleus to Reticular formation) (regulate muscle tone & maintain upright posture)
Most of the afferent coming to cerebellum via which peduncle, most of the efferent leaving cerebellum through which peduncle?aff, Inferion; Eff, Superior
which side of the body is controlled by the right cerebellum?Right cerebellum
3 signs of Cerebellar AtaxiaDysmetria, Dysarthria, & Dysdiodokokinesia (3 D’s)

blood supply of brain stem and cerebellum

Question Answer
What 3 major arteries provide blood supply to Cerebellum?PICA (Post Inf Cerebellar Artery), AICA (Ant Inf Cerebellar Artery)
What artery gives rise to PICA?Vertebral Artery
What Artery gives rise to AICA?Basilar Artery (Caudal)
What artery gives rise to Superior Cerebellar Artery?Basilar Artery (Rostral)
What artery is commonly associated with Trigeminal Neuralgia?Superior Cerebellar Artery
What is the only Artery of the Cerebellum that is NOT a branch off of the Basilar Artery?Posterior Inferior Cerebellar Artery (PICA) (Branch of VERTEBRAL)

Basal Ganglia

Question Answer
Areas of Gray matter Deep within the Cerebrum are called the ___ ___Basal Ganglia
Deficits seen in PARKINSON’S & HUNTINGTONS are associated with what part of CNS?Basal Ganglia (regulate movement)
What is the “head” of the Basal Ganglia?Lenticular Nucleus
What is the “body” of the Basal Ganglia?Caudate Nucleus
What is on the “tip of the tail” of the Basal Ganglia?Amygdaloid Body
Preparation of the body for a movement is associated with what part of CNS?Basal Ganglia