Homeostasis Flashcards
Cerebrum
-Largest
-Learning,memory,language, position
Cerebellum
-posture, fine motor control, unconscious body control
Pons
-relay system between hemispheres & cerebellum
MEdulla Oblongata
-Connect brain to spinal chord
-life sustaining functions
Corpus Callosum
-connects left and right
Seratonin
-too much - depression
Too little-ocd
Glutamate
Too much -migranes
Dopamine
Too much - scitzo
Too little- adhd & Parkinson’s
Endorphins
Too little - alcoholism
Too much - pain tolerance
Negative feedback
Puts things back to normal
Positive feedback
Pushes things further away from normal
Central Nervous System
-Coordinating centre
-brain & spinal chord
Peripheral Nervous System
Nerves that lead in & out of CNS
Glial Cells
-non coding
-for support & metabolism
Neurons
-Conduct impulses
-SENSORY - carry info about stimuli in & out of CNS
-INTERNEURONS - link neurons to CNS
-MOTOR - neurons relay info from CNS to muscles
Myelin
Protects neuron and speeds up response
Feedback system
Control centre
Effector
Sensor
Gap between dendrite and axon
A synapse
Glutamate location
End of axon
not involved directly with a reflex response.
Brain
Hyperthyroidism
The thyroid products very low amounts of thyroxine
-symptoms include: stocky, short build, fatigue, slow pulse, hair loss
Treated with injections of thyroxine
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