Somatic nervous system example psychology
The limbic system includes the amygdala, the hypothalamus, and the hippocampus. The brain stem includes the medulla, the pons, and the reticular formation.Ībove the brain stem are other parts of the old brain involved in the processing of behaviour and emotions, including the thalamus, the cerebellum, and the limbic system. It controls the most basic functions of life, including breathing, attention, and motor responses. The brain stem is the oldest and innermost region of the brain. The brains of all animals are layered and generally quite similar in overall form. More than 100 chemical substances produced in the body have been identified as neurotransmitters, and these substances have a wide and profound effect on emotion, cognition, and behaviour.ĭrugs that we ingest may either mimic (agonists) or block (antagonists) the operations of neurotransmitters. Neurotransmitters travel across the synaptic space between the terminal button of one neuron and the dendrites of other neurons, where they bind to the dendrites in the neighboring neurons. Neurons are separated by junction areas known as synapses. The action potential operates in an all-or-nothing manner. Within the neuron, the electrical charge occurs in the form of an action potential. An electrical charge moves through the neuron itself, and chemicals are used to transmit information between neurons. The nervous system operates using an electrochemical process. Neurons are composed of a soma that contains the nucleus of the cell a dendrite that collects information from other cells and sends the information to the soma and a long segmented fiber, known as the axon, which transmits information away from the cell body toward other neurons and to the muscles and glands.
Neurons are the cells in the nervous system.
The body is controlled by the nervous system, consisting of the central nervous system (CNS) and the peripheral nervous system (PNS) and the endocrine system, which is made up of glands that create and control hormones. All human behaviour, thoughts, and feelings are produced by the actions of our brains, nerves, muscles, and glands.