midbrain, hindbrain and limbic system

what does the midbrain do

process visual and auditory stimuli, and generates reflexive responses to these stimuli

a tumor here would lead to uncontrolled growth/gigantism

pituitary gland

what are the corpora quadrigemina

2 pairs of sensory nuclei

• superior/inferior colliculus

what does your superior colliculus do

instinctively process visual information

what does your inferior colliculus do

instinctively process auditory information

what is the red nucleus

• fine motor control

  • ex.) posture

• mickeys EYES

what is the substantia nigra

• regulate motor output by making dopamine via cerebral or basal nuclei

• mickeys EYEBROWS

what are the cerebral peduncles

• anchor cerebrum to brainstem and carries information inbetween

• mickeys EARS

what are cerebral nuclei

regulate moving (ie. stopping/starting), control of subconscious movement

what are the 3 types of cerebral nuclei

• caudate nucleus

• putamen

• globus pallidus

what makes up the hindbrain

metencephalon and myelencephalon

what makes up the metencephalon

pons and cerebellum

what makes up the myelencephalon

medulla oblongata

what are pons

• regulate rate and depth of breathing

• relay for sensory info between thalamus and cerebellum

what makes up the cerebellum

• vermis

• arbor vitae (white matter)

• folia (gray matter)

what is the cerebellum

• receives info from cerebrum, ears, eyes, spinal cord

• outputs info back out via cerebrum and skeletal muscle

• fine tunes muscle memory!

what monitor all proprioceptive, visual, tactile, balance, and auditory sensations received by brain and makes adjustments

cerebellum

what is the medulla oblongata

• relay info the thalamus to spinal cord

• regulates respiration, blood pressure and heart rate

what is the limbic system

structures involved in emotion, learning, memories associated with emotions

“emotional brain”

what are the main components of the limbic system

• cingulate gyrus

• hippocampus

• amygdala

• fornix

• olfactory structures

what is the cingulate gyrus

receive info from other limbic parts, enable you to focus

what is hippocampus

long term memory storage

what is the amygdala

store info, strong emotion, FEAR

fornix

connect hippocampus with others

what do the olfactory structures process

odors connected with memories