Brain Structure and Function Table

for anat-102!

Corpus Callosum

white matter tract that connects the L&R cerebral hemispheres.

Septum Pell

transparent division between the L&R lateral ventricles.

Fornix

links parts of the limbic system.

Thalamus / Hypothalamic sulcus

recieves most sensory input entering the brain.

Interthalamic Adhesion

connects L&R thalamus

Hypothalamus

Controls hunger, thirst, temperature, homeostatisis, emotions, hormones.

Optic Chaism

Hemidecussation of the optic nerves.

Pineal Body

Secretes melatonin, serotonin, maintains circadian rhythm.

inferior colliculus

controls reflexive movements of the head toward auditory stimuli

Superior colliculus

controls reflexive movements of the head toward visual stimuli

Corpora

All 4 colliculi in the tectum

Cerebral Aqueduct

Delivers CSF from the 3rd to the 4th ventricle.

Mammillary Body

bulge from the hypothalamic floor involved in reflexes related to smell.

Pituitary Gland

regulatory endocrine gland

Fourth Ventricle

recieves CSF from the cerebral aqueduct

Arbor Vitae

“Tree of Life”, branching myelinated fibers in cerebellum

Pons

Ascending and decending tracts, reflexive centers.

Medula Oblongata

Houses Major vital centers

Olive

houses cell bodies of neurons that provide output to the cerebellum

Pyramid

contains fiber from descending upper motor neurons in the medulla

Longitudinal Fissure

fissure between the 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

visual input, houses visual cortex

Temporal lobe

auditory input, houses auditory cortex

Central Sulcus

seperates frontal lobe from parietal lobes.

Precentral Gyrus

primary motor area of cerebral cortex

Postcentral Gyrus

Primary somatosensory area of the cerebral cortex

lateral sulcus

Sulcus between parietal and temporal lobes

transverse fissure

fissure between cerebellum and occipital lobe

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