NERVOUS SYSTEM Flashcards
Command Center of the body
Nervous System
Two systems of Nervous System
Peripheral and Central Nervous System
made up of brain and spinal cord
Central Nervous System
Responsible for the high intelligence based activity (speaking, thinking, processing thoughts and emotions.
Central Nervous System
Responsible for acting on a certain stimulus felt by the five senses
Central Nervous System
Main organ of the CNS
Brain
Serve 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
Connected to the cerebral cortex to the medulla
Pons
Center of communication and coordination between two hemisphere
Pons
Controls involuntary functions (respiration, digestion, swallowing, and sneezing
Medulla
Bridge signal from the spinal cord to the various parts of the brain
Medulla
Coordinates movement and balance
Cerebellum
Monitors motor commands from the cerebrum
Cerebellum
secretion of melatonin
Epithalamus
controls emotion
Epithalamus
connects limbic system tot he other brain parts
Epithalamus
relays sensory impulses to and from the cerebral cortex
Thalamus
Thalamus serves as the body’s thermostat
False - Hypothalamus
Regulates hungers, sleep, thirst, sexual urges and mating behavior
Hypothalamus
Fight or flight response and pleasure
Hypothalamus
Controls the anterior pituitary gland in secreting hormones
Hypothalamus
controls and regulates perception, thinking, voluntary movement and learning
Cerebrum
made of all the nerves and ganglia outside the brain and spinal cord
Peripheral Nervous System
structure containing nerve cell and synapses
Ganglia
Peripheral nervous system is made up of
8 cervical nerves
12 thoracic nerves
5 lumbar nerves
4 sacral nerves
Network of nerves in the body
Plexus
Groups of PLEXUS
Cervical (C1-C5)
Brachial (C5-T12)
Lumbar (T12-T14)
Lumbosacral (L4-S4)
consist of sensory and motor neurons connected by a synapse
Peripheral Nervous System
sense the stimuli from the external environment and relays in to the CNS for processung
Sensory Neurons
responsible for all the voluntary activities of the body and made up of motor neurons
Somatic Nervous System
responsible for transmitting impulses away from the area where you received the stimulus to the central nervous systems
Afferent Neurons
(A)way
Responsible for the conductance of motor reflexes from the CNS to the area where the impulse was received
Efferent neurons
facilitates most of the involuntary actions of the various organ system in the body.
Autonomic Nervous System
Responsible for breathing, beating of the hearts, pattern of wake and sleep
Autonomic Nervous System
Actions include increasing alertness, heart rate, and dilation of bronchial tubes to increase air flow to the lungs.
Sympathetic Nervous System
Sympathetic Nervous System is also called as
Adrenergic Nervous System
Stimulates sweat glands, and the adrenal medulla to secrete epinephrine (adrenaline)
Sympathetic Nervous System
Inhibits intestinal motility and dilates blood vessels of skeletal muscles to increase blood flow
Sympathetic Nervous System
constricts bronchial tubes to decrease airflow to the lungs, and stimulates the secretion of salivary mucus.
Parasympathetic Nervous System
Parasympathetic Nervous System is also called
Cholinergic Nervous System (Rest and Digest)
Stimulates intestinal motility and secretion to promote digestion.
Parasympathetic Nervous System
Stimulates the bladder wall to contract and the internal sphincter to relax to cause urination
Parasympathetic Nervous System
