Learning Intention 3 Flashcards
- to know how to identify the structures of the central and peripheral nervous systems and describe their function - to understand the effects of drugs on different systems
What does the nervous system do
allows people to respond to what is around them
Two parts of the nervous system
- voluntray nervouse system, which allows people to react to what is around them
-autonomic nervous system (controls involuntray functions of the inner body)
Parts of the brain
- cerebrum (largest prt of the brain)
- cerebellum (base of the brain)
- brain stem (at the base of the skull)
- spinal cord (connects to brain stem)
What does the cerebrum do
control functions such as thought, speech and memory
What does the cerebellum do
maintains balance during movement
What does the brain stem do
controls involuntary actions such as breathing and heartbeat
What does the spinal cord do
connects the brain to the nerves in the rest of the body
What is the Peripheral Nervous System
consists of sensory receptors and all the nerves that are connected to all the muscles in your body
Two parts of the PNS
somatic and autonomic nervous system
What does the CNS consist of
brain and spinal cord
What is the somatic nervous system and what does it do
consists of all the sensory and motor nerves that are connected to your skeletal muscles and its main function is to collect information through sensory organs
What is the autonomic nervous system and what does it do
involved in involuntary action and regulates essential bodily functions such as breathing and heart rate. It has two parts: sympathetic and parasympathetic systems
What does the sympathetic nervous system do
activates a fight or flight response and causes increased heart rate and air intake, dilated pupils and slow digestion
What does the parasympathetic nervous system do
activates a rest and digest response and causes decreased heart rate and air intake, constricted pupils and increased digestion
