Nervous System Flashcards
Branch of nervous system compose of brain and spinal cord
CNS
Responsible for high intelligence based activities, five senses.
CNS
Serves as the main highway for the conduction of impulses and message from the brain to various parts of the body and vice versa
Spinal cord
Latin Language = “a bridge”
Connects the cerebral cortex to the medulla; center of communication and coordination between the two hemisphere
Pons
Controls involuntary functions like respiration, digestion, swallowing and sneezing; bridge signals from the spinal cord to the various parts of the brain
Medulla oblongata
Coordinates movement and balance; monitors motor commands from the cerebrum
Cerebellum
Secretion of melatonin; controls emotions; connects limbic system to the other brain parts (Sleep-wake cycle)
Epithalamus
Relays sensory impulses to and from the cerebral cortex
Thalamus
Servers as the body’s thermostat; regulates hunger, sleep, thirst, sexual urges and mating behavior, flight or flight response and pleasure; controls the anterior pituitary gland in secreting hormones
Hypothalamus
Controls and regulates perception, thinking, voluntary movement and learning
Cerebrum/
Cerebral Cortex
Carries messages to and from the CNS
PNS
PNS is made up of 8_____, 12_____,5_____ and 4______nerves.
8 Cervical
12 Thoracic
5 Lumbar
4 Sacral
Network of nerves in the body
Plexus
Plexus grouped into cervical (__),brachial (__), lumbar (__), and lumbosacral (__)
Cervical (C1 - C5)
Brachial (C5 -T12)
Lumbar (T12 - L4)
Lumbosacral ( L4 - S4)
Sense the stimuli from the external environment and relays in to the CNS for processing.
Sensory neurons
*Going to Motor neurons