Nervous System Flashcards
Three structures that protect the brain
Hard skull, meninges(membrane), and cerebrospinal fluid.
Function f brain
Control center of the body
Why does a teenage brain contribute to poor judgement
Brain isn’t fully developed, with dramatic changes to frontal lobe during puberty
Difference between grey and white matter
White matter is made up of the axon portion and relays messages from grey portion.
Grey matter is made up of cell bodies and store and receive impulses from the body and other parts of the brain
Cerebrum function
Learning, speech, emotion, reasoning, vision, touch, fine movements
Gyrus
A fold in the brain
Sulcus
Lines between the fold
Maintains posture, balance, and is responsible for movement
Cerebellum
Brain stem function
Maintaining respiration, circulation, body temp, sleep, digestion, and swallowing
Four lobes of cerebrum
Frontal lobe
Parietal lobe
Temporal
Occipital
Frontal lobe
Speech
Parietal lobe
Taste, speech, reading
Temporal lobe
Smell and hearing
Occipital lobe
Vision
Chemicals that move between synapses and continue to relay impulses between neurons
Neurotransmitter
Muscle control, memory formation, sensory response
Acetylcholine
Intestinal movement, mood regulation, appetite, sleep, muscle control
Serotonin