Physiology Flashcards
system nerve tissue and fibers outside of the brain and SC – connects the CNS to the rest of the body, has 2 subdivisions
peripheral nervous system
system of brain and spinal cord
central nervous system
sensory neurons transmit information through ____
afferent fibers
motor impulses travel through ____
efferent fibers
nervous system that accelerates heartbeat and inhibits digestion - fight or flight
sympathetic
nervous system that decelerates heartbeat and increases digestion, goal of energy conservations
parasympathetic
part of the brain involved in balance, motor coordination, breathing, digestion, general arousal processes (sleeping/waking) - vital for survival
hindbrain
part of the brain that manages sensorimotor reflexes to promote survival, receives sensory and motor information
midbrain
part of the brain associated with complex perceptual, cognitive, and behavioral processes (emotion and memory), greatest influence on behavior
forebrain
a lower brain structure responsible for regulating vital functions such as breathing, heartbeat, and blood pressure
medulla oblongata
brain structure that contains sensory and motor tracts between the cortex and medulla
pons
brain structure that helps maintain posture and balance and coordinates body movements
cerebellum
brain structure composed of interconnected nuclei, regulates arousal and alertness (sleeping and waking) and attention (anesthetics act on this)
reticular formation
____ colliculus receives visual sensory input
superior
____ colliculus receives auditory sensory input
inferior