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How does my body respond to my surroundings? - Coggle Diagram
How does my body respond to my surroundings?
The divisions of the nervous system.
Central Nervous System (CNS)
Includes the brain and the spinal cord.
Peripheral Nervous System (PNS)
Includes the peripheral nerves. The nerves form the somatic and autonomic system.
The somatic system sends information from the brain to the body and spinal cord.
The autonomic system regulates involuntary actions by autonomic reflexes.
Neurons
They are cells that send and receive information through nerve impulses. It's parts are a cell membrane, the soma, the axon and dendrites.
The connection between two neurons is a synapse.
Neurons are classified as sensory neurons, motor neurons and interneurons.
Brain
The brain is divided into the cerebrum, cerebellum and the brain stem. The brain stem is the connection between the brain and the spinal cord.
The brain stem controls involuntary movements, the cerebellum controls the balance and posture and the cerebrum controls abstract thoughts, movements, speech and sense.
Nervous System Damage
Our nervous system can be damaged by body lesions and illnesses. This damages can occur to the whole nervous system or parts of it . This damages can have physical, behavioral and social effects.
Substance Use and Abuse
Drugs use and abuse implies the intake of substances that have effect on the body. These drugs can damage the liver and the nervous system. They may produce addiction or physical or psychological dependance.
Withdrawal occurs when the person needs another dose to feel well.
Recreational drugs can be classified as depressants (alcohol, heroin, cannabis) and stimulants (caffeine, cocaine, ecstasy)
