Section 6, Part 3 Flashcards
What is the function of the inferior cerebellar peduncle?
Carry information from the spinal cord and medulla to the cerebellum
What type of information does the inferior cerebellar peduncle carry?
Proprioceptive information
What three sources of information are carried in the inferior cerebellar peduncle?
1- Spinocerebellar tract
2- inferior olivary complex
3- vestibular nuclei
What information is in the spinocerebellar tract?
proprioceptive information about the position and velocity of limbs
Where does the inferior olivary complex receive information from?
Recieves information from most areas of cerebral cortex, red nucleus and spinal cord
What is the function of the middle cerebellar peduncle?
Carries information from the pons to the cerebellum
Where does the information of the middle cerebellar peduncle come from?
neurons in the basis of the pons, the pontine nuclei, receive innervation from the cerebral cortex and then relays this information
Which side of the cerebellum does the middle cerebellar peduncle communicate with?
Contralateral cerebellum
What is the major outflow source of the cerebellum?
Superior Cerebellar Peduncle
Where does the inflow to the Superior Cerebellar Peducle come from?
The axons arise from the “deep cerebellar nuclei” and enter the tegmentum of the pons and then into the superior cerebellar peduncle
Which peduncle has fibers that deccusate?
The axons entering the superior cerebellar peducle decussate at the Decussation of the Superior cerebellar Peduncle
What is an intention tremor?
The patients does not have a tremor at rest but when he/ she attemps to make a guided movement (such as reaching) the tremor appears and become more pronounced
Which part of the anatomy of the brain is an intention tremor associated with?
Cerebellum (Hemisphere damage)
What is ataxia?
a deficite in making coordinated movements
Which part of the anatomy of the brain is an ataxia associated with?
Cerebellum
