ANATOMY OF THE BRAIN

THALAMUS;-

Relays for sensory info.

HYPOTHALAMUS;-

Emotions,drives like hunger and thirst, hormones, homeostasis (hooks to pituitary).

PITUITARY;-

Primary link between nervous and endocrine system.

MIDBRAIN;-

Processes visual and auditory info and involuntary muscles; arousal from sleep, awareness, eating, sleeping attention.

PONs;-

Motor control, connects cerebellum to brain stem.

MEDULLA OBLONGATA:-

Regulates heart rate, blood pressure, respiration and digestion, connects brain to spinal cord; vital centers.

CEREBRUM:-

Largest region of the brain, contains: conscious thoughts, sensations, intellect, memory and complex movements (many divisions called lobes).

SOMATIC MOTOR ASSOCIATION AREA;-

Cerebrum lobe that Coordinates learned movements, speech.

PRIMARY MOTOR CORTEX;-

Cerebrum lobe that directs voluntary movements to motor neurons.

PRIMARY SENSORY CORTEX;-

Cerebrum lobe that receives sensory input: touch, pressure, pain and temperature.

FRONTAL LOBE;-

Cerebrum lobe that taste, predicts future consequences of actions, abstract intellectual functions, feelings of frustration, tension and anxiety.

PARIETAL LOBE;-

Cerebrum lobe that sensory analysis of your body in space, processes external sensory input; allows you to recognize a touch as light as a mosquito on your skin.

OCCIPITAL LOBE;-

Cerebrum lobe that visual processing and visual memory.

TEMPORAL LOBE;-

Cerebrum lobe that hearing, memory of sounds, speech, and understanding speech.

OLFACTORY BULB;-

Interprets smell.

CEREBELLUM;-

Timing, coordination, stored memories.

OPTIC CHIASMA;-

Where optic nerves cross.

MAMMILLARY BODY;-

Used for feeding reflexes and behaviors.

CORPUS CALLOSUM;-

Joins the two hemispheres of the brains allowing communication.

PINEAL GLAND;-

Controls Circadian Rythms (serotonin).

CINGULATE GYRUS;-

Pain, emotional behavior and anticipation.

LONGITUDINAL FISSURE;-

Divides left and right cerebral hemispheres.

BRAIN STEM;-

Important processing center and relay station for info headed to or from cerebrum or cerebellum.

EEG;-

Electroencephalogram.

CEREBROSPINAL FLUID;-

Supports brain and transports nutrients, chemical messengers, and wastes.

CENTRAL NERVOUS SYSTEM;-

Brain and spinal cord.

PERIPHERAL NERVOUS SYSTEM;-

Everything except brain and spinal cord; divided into Somatic Nervous Sytem and Autonomic Nervous System.

SOMATIC NERVOUS SYSTEM;-

Part of Peripheral Nervous System that moves skeletal muscles.

AUTONOMIC NERVOUS SYSTEM;-

Part of Peripheral Nervous System that moves smooth/cardiac muscles and affects fat and glands.

GRAY MATTER;-

Neuron cell bodies (lines outside of brain).

WHITE MATTER;-

Neuron axons (inside of brain).

NEUROGLIA;-

Aka glial cells; support neurons by regulating environment and destroying pathogens; several types exist.

SENSORY NEURONS;-

Afferent; pick up on external or internal environments
ex: taste, pain. touch.

MOTOR NEURONS;-

Efferent; cause movement of smooth, skeletal, or cardiac muscle.

INTERNEURONS;-

Only in brains and spinal cord; link nerves in reflex arch, may play a role in memory.

DENDRITE;-

Part of neuron that receives message.

CELL BODY;-

Part of neuron that contains organelles.

NISSL BODY;-

Part of neuron that clusters rough ER and free ribosomes; makes cell body appear gray.

AXON;-

Part of neuron that continues messages to synaptic terminals.

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Source:- MDSMAFE

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