Brain nuclei elaboration Flashcards
What function do medullary nuclei have?
1.Relay sensory information to brain
2. associated with cranial nerves
3.associated with autonomic control (homeostasis)
Does all communication between brain and spinal cord cross medulla oblongata?
Yes
Gracile nucleus
Part of the medulla oblongata passes information to the thalamus
cuneate nucleus
Part of the medulla oblongata passes information to the thalamus
Solitary nucleus
Part of the medulla oblongata receives visceral sensation
Olivary nuclei
Part of the medulla oblongata Relays information to cerebellum makes “olives” in medulla
Reticular formation
Forms reflex centres in the medulla oblongata
Cardiovascular centres
Part of the reticular formation sets heart rate and contraction
Respiratory centres
part of the reticular formation sets breathing pace
Pons parts
-apneustic center
-pneumotaxic center
-transverse fibers
-CNS tracts
apneustic and pneumotaxic center
Parts of the pons that control breathing
transverse fibers
in the pons they communicate between cerebellar hemispheres
Corpora quadrigemina
two pairs (4 total) of nuclei within the mesencephalon
(superior and inferior conniculi)
Tectum
Surface of mesencephalon contains inferior and superior colliculi
inferior colliculi
auditory processing within the mesencephalon
superior colliculi
visual processing within the mesencephalon
Red nucleus and substantial nigra
parts of the mesencephalon and the reticular formation they control muscle tone
Cerebral peduncles
contained in the ventrolateral surfaces of mesencephalon
Substantia nigra
The black part of mesencephalon due to dopamine oxidation and controls motor
Thalamus location
Forms walls of 3rd ventricle is right above the pituitary gland
Thalamus nuclei
-Anterior nuclei
-medial nuclei
-posterior nuclei
-lateral nuclei
Posterior nuclei parts
-pulvinar nuclei
-lateral geniculate nucelei
-medial geniculate nuclei
Hypothalamus functions
-Homeostasis
-ADH and Oxytocin secretion
-Emotional responses
Folia cerebelli
similar to gyri of cerebrum are just folds
Cerebellar primary fissure
Separates cerebellar hemispheres
Arbor vitae
connects cerebellar cortex to the peduncles
Cerebellar peduncles
superior, middle and inferior
named with the location they commutate with