lab 3 Flashcards
Thalamus
Diencephalon
Multifunctional - Relays sensory/motor information, sensory processing, regulation of sleep and wakefulness, consciousness, mood
Hypothalamus
Diencephalon
Activities of ANS, metabolic processes, pituitary function
Diencephalon
Region surrounding/or in proximity to the thalamus
Mammillary body
Diencephalon
Aspects of memory
Fornix
Diencephalon
two parts: column and body
Connects Mammillary body to hippocampus – communicate info between the two
Columns starts the structure and the body lies over the thalamus
Pineal body
Diencephalon
Role in modulating sleep; pain modulation/stress/learning
Posterior commissure
Diencephalon
Relays information (pupillary reflexes) between hemispheres
Corpus callosum (rostrum, genu, body, splenium)
Diencephalon
Large white matter structure which relays info b/w hemispheres
(rostrum, genu, body, splenium)
Septum pellucidum
Diencephalon
Thin membrane separating anterior horns of R/L lateral ventricles of cerebral hemispheres
Anterior commissure
Diencephalon
Relays information (olfactory) between hemispheres, white matter highway (info travels on this pathway)
another way to say roof
tectum
another way to say floor
tegmentum
Tectum midbrain parts
Superior Colliculus (and brachium)
Inferior colliculus (and brachium)
Superior Colliculus (and brachium)
Associated with Vision
Inferior colliculus (and brachium)
Associated with Audition
Midbrain tegmentum externally
externally= cerebral peduncles
Midbrain tegmentum function
“floor” of midbrain, pathway to/from cortex
Interpeduncular fossa
Space between the two cerebral peduncles
Pontine tegmentum
pons
floor of the 4th ventricle
Pyramids
medulla
Descending path for motor function to body
Pyramidal decussation
medulla
Crossing of descending motor fibers, occurs at the transitional area of the BS and SC
Sensory fibers in the medulla
Ascending sensory fibers from LE/UE
2 Major Circulatory Systems
- Anterior Intracranial Circulation
- Posterior Intracranial Circulation
Anterior Intracranial Circulation
– stemming from the internal carotid artery system
Posterior Intracranial Circulation
stemming from the vertebrobasilar system
Circle of Willis
communication of anterior to posterior circulation systems