The Human Nervous System
- Created by: hannahbrazell15
- Created on: 28-05-21 21:16
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- The Human Nervous System
- The Central Nervous System (CNS)
- The Brain
- Frontal Lobe
- thought and speech production
- Occipital Lobe
- processing of visual images
- Temporal Lobe
- hearing
- Parietal Lobe
- Processing Sensory Information
- The Diencephalon
- Thalamus
- Relay station for nerve impulses coming from the senses, and directing them towards the appropriate parts of the brain to be processed
- Hypothalamus
- Regulates body temperature, hunger and thirst. Also acts as a link between the endocrine system and the nervous system as it controls the release of hormones from the pituitary gland
- Thalamus
- Cerebellum
- Controls motor skills and balance
- Brain Stem
- Regulates the automatic functions essential for life eg. breathing, heartbeat, swallowing
- Cerebrum
- Split into 2 hemispheres that communicate through the corpus callosum
- Frontal Lobe
- The Spinal Cord
- Relays information between the brain and the rest of the body
- Contains circuits of nerve cells that enable us to perform some simple reflexes without direct involvement of the brain
- The control of behaviour and regulation of the body's physiological processes
- The Brain
- The Peripheral Nervous System (PNS)
- The Autonomic Nervous System (ANS)
- Sympathetic Nervous System
- Responds to fight or flight eg. increases heart rate, increases blood pressure, dilates blood vessels
- Parasympathetic Nervous System
- regulate the same organs but have opposite effects
- Sympathetic Nervous System
- Responds to fight or flight eg. increases heart rate, increases blood pressure, dilates blood vessels
- Sympathetic Nervous System
- Relaxes you after fight or flight eg. decreases heart rate, decreases blood pressure, constricts blood vessels
- regulate the same organs but have opposite effects
- Involves actions without your conscious awareness
- Sympathetic Nervous System
- The Somatic Nervous System (SNS)
- made up of cranial and spinal nerves that have both sensory and motor neurons
- Involved in reflex actions without the involvement of the CNS, which allows the reflex to happen very quickly
- relays nerve impulses from the CNS to the rest of the body and from the body back to the CNS.
- The Autonomic Nervous System (ANS)
- The Central Nervous System (CNS)
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