The Nervous System: Anatomy and Physiology: Introduction (02:14)
Moving one finger involves the integumentary, circulatory, muscular, and skeletal systems. The nervous system coordinates the muscles, monitors the organs, processes sensory data, and is involved in all actions. The organs of the nervous system include the brain, the spinal cord, and the nerves.
Neuroglia provide structural support and nourishment for the neurons. A neuron is composed of a cell body, axons, and dendrites— contact between one neuron's dendrite and another's axon is called a synapse. The three main types of neurons are sensory neurons, motor neurons, and interneurons.
The Central Nervous System (06:02)
The CNS contains the brain and spinal cord. Brain functions are mostly localized into four lobes: the frontal, parietal, temporal, and occipital lobe. Learn what jobs the cerebellum, interbrain, cerebellum, thalamus, brain stem, and hypothalamus performs.
The Peripheral Nervous System (03:48)
The PNS consists of two main parts: the somatic and the autonomic. The autonomic nervous system is responsible for digestion, respiration, metabolism, and blood pressure. Reflexes are an automatic response sent from the spinal cord and do not engage the brain.
Credits: The Nervous System: Anatomy and Physiology (00:23)
Credits: The Nervous System: Anatomy and Physiology
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