MCAT Quicksheets Behavioral Sciences Flashcards
(195 cards)
What are the three types of neurons in the nervous system?
Motor (efferent)
interneurons
sensory (afferent)
What is the parasympathetic branch of the nervous system focused on?
Rest and digest
What is the sympathetic branch of the nervous system focused on?
Fight or flight
What are some of the effects from parasympathetic nervous system activation?
Constriction of pupils Stimulates saliva flow Constricts bronchi Slows heartbeat Stimulates peristalsis and secretion Stimulates bile production Contracts bladder
What are some of the effects from sympathetic nervous system activation?
Dilates pupils inhibits salivation Relaxes bronchi Accelerates heartbeat Piloerection or sweating Inhibits peristalsis Stimulates glucose production and release Secretion of adrenaline and noradrenaline Inhibits bladder contraction Stimulates orgasm
What is the organization of the hindbrain?
Contains the cerebellum, medulla oblongata, and reticular formation
What is the organization of the midbrain?
contains inferior and superior colliculi
What is the organization of the Forebrain?
contains the thalamus, hypothalamus, basal ganglia, limbic system, and cerebral cortex
what is the purpose of the thalamus?
relay station for sensory information
what is the purpose of the the hypothalamus?
maintains homeostasis and integrates with the endocrine system through the hypophyseal portal system that connects the anterior pituitary
what is the purpose of the basal ganglia?
smoothens movements and helps maintain postural stability
what is the purpose of the Limbic system?
controls emotion and memory
includes: Septal nuclei amygdala hippocampus fornix
What do the Septal nuclei do in the Limbic system?
pleasure-seeking
What does the amygdala control?
fear and aggression
What does the hippocampus aid in?
memory
What purpose does the fornix serve in the Limbic system?
Communication within the system
What are the 4 lobes of the cerebral cortex?
Frontal, Parietal, Occipital, and Temporal
What functions does the Frontal lobe serve?
Executive function Impulse Control Long-term planning Motor function Speech production
Long term planning in the frontal lobe occurs in?
the prefrontal cortex
Speech production in the frontal lobe occurs in?
Broca’s Area
What functions does the Parietal lobes serve?
Sensation of touch, pressure, temp, and pain
Spatial processing, orientation, and manipulation
What function does the Occipital lobe serve?
Visual Processing
What function does the temporal lobe serve?
Sound processing, speech perception, memory, and emotion
Sound processing occurs in what area of the temporal lobe?
auditory cortex