Overview Flashcards
Define nervous system
Network of fibres permeating body, coordinating voluntary and involuntary actions.
Transmits signals
Responds quickly to changes in internal/external environment
Two parts nervous system
CNS - brain, spinal cord
PNS - peripheral nerves
Sensory function carried out by which neuroma
Afferent
(Sensory) neutrons
Integrative function
Processing sensory information, analysing storing causing perception carried out by which neurons
Interneurons
Motor response
Impulse carried out by
Motor
Efferent
Neurons
3 PNS sensory receptors internal environment
Chemoreceptors
Baroreceptors
Osmoreceptors
Autonomic
Role of brain in CNS
Receives/processes sensory info
Initiates responses
Stores memories
Generates thoughts, emotions
Role spinal cord CNS
Conducts signals to/from brain
Controls reflex activities
Role of motor neurons PNS
CNS to muscles and glands
Role of sensory NEURONS CNS
Sensory organs to CNS
Motor neurons 2 categories
Somatic NS
Autonomic NS
Autonomic NS two types
Sympathetic
Parasympathetic
Role somatic NS
Controls voluntary movements
Role autonomic NS
Controls involuntary responses
Which tissues does ANS affect
Organs
Glands
Cardiac & smooth muscles