Brain Model Function

Corpus callosum

White matter tract that connects the L&R cerebral hemisphere

Septum Pellucidum

Transparent division between the L&R lateral ventricles

Fornix

Links parts of the limbic system

Thalamus

Receives most of the sensory input entering the brain

Interthalamic Adhesion

Connects L&R thalamus

Hypothalamus

Controls hunger, thirst, temperature, homeostasis, emotions, hormones

Optic Chiasm (x)

Hemidessucation of the optic nerves

Pineal Body

Secretes melatonin, serotonin, maintains circadian rhythm

Inferior Colliculus

Controls reflexive movements of the head toward visual stimuli

Corpora Quadrigemina

All 4 colliculi in the tectum

Cerebral Aqueduct

Delivers CSF from the cerebral aqueduct

Mamillary Body

Bulge from the hypothalamic floor involved in reflexes related to smell

Pituitary Gland

Regulatory endocrine gland

Fourth Ventricle

Receives CSF from the cerebral aqueduct

Arbor Vitae

"Tree of Life," branching myelinated fibers in cerebellum

Pons

Ascending and descending tracts, reflexive centers

Medulla Oblongata

Houses major vital centers

Olive

Houses cell bodies of neurons that provide output to the cerebellum

Pyramid

Contains fibers from descending upper motor neurons in the medulla

Longitudinal Fissure

Fissure between L&R hemispheres of the brain

Cerebellum

Controls balance, coordination, muscle tone

Frontal Lobe

Motor output, problem solving, personality

Parietal Lobe

Houses somatosensation (general senses)

Occipital Lobe

Visual input, houses visual cortex

Temporal Lobe

Auditory input, houses auditory cortex

Central Sulcus

Separates frontal from parietal lobes

Precentral Gyrus

Primary motor area of the cerebral cortex

Postcentral Gyrus

Primary somatosensory area of the cerebral cortex

Lateral Sulcus

Sulcus between parietal and temporal lobes

Gyrus

A bump/upward mound in the cortex

Sulcus

A groove or depression in the cortex

Olfactory bulb

Houses cell bodies of second order neurons involved in the sense of smell

Olfactory Tract

Tract for sense of smell/olfaction