Nervous System
a system of the body that in vertebrates includes the brain, spinal cord, nerves, and sense organs and receives, interprets, and responds to stimuli from inside and outside the body.
Central Nervous SystemThe complex of nerve tissues that control the activities of the body. In vertebrates it comprised the brain and spinal cord. The CNS is responsible for processing information received from all parts of the body.
Sections of the BrainFrontal lobe-
premotor cortex: storage of motor patterns prefrontal area: concentration, elaboration of thought, judgment, inhibition, personality, emotional traits broca's area: language production Temporal Lobe- Auditory reception area, Expressed behavior, Receptive speech, Memory/ information retrieval Parietal Lobe- Processing sensory input, Sensory discrimination, Body orientation, Primary somatic area, Secondary somatic area Occipital Lobe- Visual reception area, Visual interpretation Cerebellum- Coordination and control of voluntary movement Brain Stem- Breathing, Digestion, Heart control, Blood vessel control ,Alertness |
Peripheral Nervous SystemRefers to parts of the nervous system outside of the brain and spinal cord. Sensory neurons running from stimulus receptors that inform the CNS of the stimuli.Motor Neurons running from the CNS to the Muscle Glands- called effectors- that take action
Parts of the DiencephalonThalamus-
It is involved in sensory perception and regulation of motor functions. The thalamus is a limbic system structure and it connects areas of the cerebral cortex that are involved in sensory perception and movement with other parts of the brain and spinal cord that also have a role in sensation and movement. Hypothalamus- is a section of the brain responsible for the production of many of the body’s essential hormones, chemical substances that help control different cells and organs. Epithalamus- is to act as a connection between the limbic system to other parts of the brain. Some functions of its components include the secretion of melatonin by the pineal gland (involved in circadian rhythms) and regulation of motor pathways and emotions. |