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brain1
parts of the brain
Term | Definition |
---|---|
frontal lobe | located at the front of the brain , thinking, planning, social skills |
broca's area | speech production and grammar |
parietal lobe | touch, non verbal thinking |
occipital lobe | vision |
wernickes area | speech comprehension |
temporal lobe | language, hearing, visual pattern recognition |
endocrine system | collection of glands that control various bodily functions through the secretion of hormones. through the blood streem |
axon | carries information to another neuron |
neurotransmitter | transmit information from one neuron to another as they are released into the synapse |
somatic nervous system | carries sensory information to the brain and motor neurons that direct the action of skeletal muscles |
autonomic nervous system | controls basic life processes such as heartbeat digestive system and breathing |
forebrain - cerebrum and cortex | allows much more sensory cognitive and motor processes , emotional cognitive and behavioural processes |
spinal cord | carries out reflexes transmits messages from the brain to the muscle and organs |
hindbrain - medulla oblongata - cerebellum and parts of the reticular formation | link the brain to the spinal cord , controlling the supply of air and blood to cells in the body and regulate arousal level. , MOVEMENT |
midbrain- tectum and tegmentum | help humans orient to visual and auditory stimuli with eye and body movements VISION AND HEARING |
name the 3 kinds of neurons | sensort , motor and interneurons |
sensory neuron | transmits receptors to the brain either through spinal cord or directly |
interneurons | nerve cells that connect other neurons with one another |
motor neurons | transmit commands to glands and body through spinal cord |
axon | long extention from the cell body as long as 1 meter, axons have 1 or 2 shoot offs called collateral branches |
myelin sheath | transmit information to other neurons |
hypothalamus | hunger thirst aggression |
amygdala | aggression and fear |
cerebral cortex | behaviour and higher mental processes |
corpus callosum | thick band of axons connecting the two hemispheres of the cerebral cortex |
thalamus | relays sensory messages to cortex |
pons | movement walking sleep and dreaming |
cerebellum | balance movement perception |
medulla | breathing heartbeat , life functions |
absolute threshold | minimum amount of physical energy needed for an observer to notice a stimulus |