Corpus callosum
separation of left and right hemispheres
Unconscious coordination
Basal Nuclei
Amygdaloid body
Conversion of emotion to memory.
Coordinates between cerebrum and diencephalon.
Limbic system
Hippocampus
Memory storage and retreival
Solitary Nucleus
Receives and processes visceral sensory information, especially gustation and internal organ signals (visceral sensation).
regulates heart rate, breathing, blood pressure & swallowing.
Medulla Oblongata
PONS
Contains nuclei that manage sleep, respiration, and posture. Also serves as a bridge for relaying signals between the cerebrum and cerebellum.
A web of gray matter that plays a key role in somatic motor control, cardiovascular control, pain modulation, and sleep/conciousness
reticular formation
Cerebellum
Primarily responsible for muscular coordination, motor learning, and maintaining balance and posture.
Cerebral Cortex
the outer layer of gray matter that handles consciousness thought memory and voluntary motor control
The major control center for the endocrine and autonomic nervous systems, regulating homeostasis. (hunger, thirst, temp, and circadian rhythms)
Hypothalamus
Lateral geniculate nucleus
A specific thalamic nucleus that relays visual information from the optic tract to the visual cortex
A specific thalamic nucleus that relays auditory information to the primary auditory cortex.
Medial geniculate nucles
Thalamus
The gateway to the cerebral cortex nearly all sensory input passes through (except smell) to be filtered and relayed to the appropriate area of the cerebrum
Reticular activating system
A specific part of the reticular formation that maintains alertness and consciousness by filtering sensory input to the cerebral cortex
A motor centor that releases dopamine to inhibit unwanted body movements, its degeneration is a hallmark of parkinsons.
Substantia Nigra
Red Nucleus
Involved in motor coordination specifically fine motor control of the limbs.
Part of the midbrain tectum, receives auditory signals from the inner ear and relays them to the other parts of the brain, mediating auditory reflexes.
inferior coliculi
Superior Coliculi
Part of the midbrain tectum, Functions in visual attention, tracking moving objects, and reflexes like blinking or turning the head toward a visual stimulus.
Medullary vasomotor centers
Regulates BP by controlling the diameter of blood vessels (vasoconstriction/ vasodilation) through the autonomic nervous system.
Sets & regulates the basic rhythm of breathing.
-Dorsal: controls inhalation and sends signals for diaphragm to contract during normal quiet breathing. -Ventral: controls forceful breathing and assists with inhalation and exhalation.
Medullary respiratory centers
Medullary cardiac centers
Controls the heart rate and force of heart contractions through the autonomic nervous system and balances the sympathetic and parasympathetic activity.
receives and processes sensory info from the lower ½ of the body (fine touch, vibration, & proprioception)
Gracile nucleus
Cuneate Nucleus
Receives and processes sensory information from the upper ½ of the body.