CHAPTER 3 nervous system Flashcards
Agnostics
drugs that increase the action of a neurotransmitter
Antagonists
drugs that block the function of a neurotransmitter
amphetamine function
stimulates that release of norepinephrine and dopamine
Three divisions of the brain
forebrain, midbrain, hindbrain
hindbrain
an area of the brain that coordinates information coming into and out of the spinal cord
controls basic functions of life: respiration, alertness, and motor skills
Structures included in the hindbrain
medulla, reticular formation, cerebellum and the pons
medulla
an extension of the spinal cord into the skull that coordinates heart rate, circulation, and respiration
reticular formation
regulates sleep, wakefulness, and levels of arousal
cerebellum
large structure of the hindbrain that controls fine motor skills
pons
relays information from the cerebellum to the rest of the brain
midbrain
sits on top of hind brain
midbrain structures
tectum and tegmentum
tectum and tegmentum function
orientation and guiding movement
Forebrain divisions
subcortical structures and cerebral cortex
subcortical structures
thalamus, hypothalamus, pituitary gland, hippocampus, amygdala, and basal ganglia
thalamus
relays and filters information from the senses and transmits the information to the cerebral cortex
hypothalamus
regulates body temperature, hunger, thirst, and sexual behavior
pituitary gland
hormone production
hippocampus
memories!!
amygdala
plays a central role in many emotional processes particularly the formation of emotional memories
basal ganglia
directs intentional movement
cerebral cortex
outermost layer of the brain divided into right and left hemispheres
lobes in hemispheres
occipital lobe, parietal lobe, temporal lobe, frontal lobe
occipital lobe
processes visual information
