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tjminnie
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What is function of the corpus callosum
- largest commicural fiber goupr
- communicate homologous cortial areas
- may propagate general seizures
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What are the fornix and cingulate gyrus involved in?
Both involved in the limbi system for emotions regulation
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What is the thin membran located in the medial side of the lateral ventricles?
Septum pellucidum
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What is the function of the ANT and POST commisural fibers?
communicate the temporal lobes of the 2 cerebral hemispheres
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What is the function of the pineal gland?
- Largest part of the epithalamus
- secretes melatonin
- involved in circadian rhytms (day/night cycles)
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What is the function of the thalamus
Relay station for somatosensory pathways (except for olfaction). It also filter input to cerebral cortex coming from the Basal Ganglia cirvuitry
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Thalamic adhesion function?
Tissue that joins both thalami by piercing through the 3rd ventricle
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What is the function of the hypothalamus?
- control endocrine secretion and autonomic regulation
- modulates primal urges and survival mechanisms
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What is the groove that divides the thalami from the hypothalamus?
Hypothalamic sulcus
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What is the function of the optic chiasm? What decussates?
- Point of decussation of the optic nerve before it becomes the optic tract
- only nasal fibers decussate
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Where is the median eminence?
part of the hyopthalamic floor located between the optic chiasm and infundibulum.
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What are the division and production of the pituitary gland?
- ANT lobe - multiple hormones
- POST lobe - Stores ADH and oxytocin
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What makes up the pituitary stalk?
Infundibulum and tuber cinereum
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What are the mamillary bodies involved in?
Limbic system
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What kind of matter is the internal, external, and extreme capsule made out of?
bands of white matter
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What separates the thalamus from the nucleus lentiform?
Internal capsule
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What separates the nucleus lentiform from the claustrum?
External capsul
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What separates the Claustrum from the insular cortex?
Extreme capsule
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What is the function of the substantia nigra? Location?
- nuclei of dopaminergic cell bodies located in the midbrain, POST to the cerebral peducles.
- sends output to the striatum
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What is the function of the hippocampus?
involved in learning and memory
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What is the basal ganglia? FUnction? output?
- Group of nuclei involved in sequencin and initiation of voluntary movement
- output to the thalamus, and to the motor cortices
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What is the function and location of the claustrum (trick)
- unknown
- lateral to the nucleus lentiform
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What makes up with striatum? Where does it recieve its input?
- Caudate and Putamen
- receives input from the substatia nigra
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What forms the nucleus lentiform? Sends output to where? for what?
- Putamen and globus pallidus
- sends output to subthalamus and thalamus for motor control.
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What is the genu of the internal capusle
it is the point of the INT capsule's flexure and divides it into anterior and POST limbs
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What is the corona radiata? made up of?
- subcortical white matter
- corticospinal tract fibers are located in the corona as well as other ascending pathways that will terminate in the cerebral cortex
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