Brain Vocab Flashcards
Sensory Nerves
Send sensory info to brain (Touch, taste, sight, smell, sound)
Interneurons
Process info in brain/spinal cord
Motor Nerves
Send info to body about movement
Neurotransmitters
Chemical messenger for neurons. *Axon terminals store neurotransmitters *Drugs = normal transmitters get ticked off and leave
Antagonist (Inhibitory Effect)
Blocks neurotransmitters, neuron less likely to fire
Agonist (Excitatory Effect)
Mimics neurotransmitters, neuron more likely to fire
Central Nervous System (CNS)
Brain and spinal cord (interneurons)
Peripheral Nervous System (PNS)
Everything else in body (sensory/motor neurons)
Somatic Nervous System
Controls voluntary movements
Autonomic Nervous System
Automatic Body Functions
Sympathetic Division
Amps you up (Fight or Flight Mode)
Parasympathetic Division
Calms you down (Rest and Digest Mode)
Hormones
Chemical messengers for glands
Pituitary Gland
Regulates other glands, communicates with brain
CAT/CT Scan
X-Rays of slices through the brain