muscles * Vertebrate brain divided into three parts * Hindbrain - most ancient part and regulates motor activity below the level of consciousness * Midbrain - optic lobes are part of the midbrain and was a center for coordinating reflexes involving the eyes and ears * Forebrain - originally dealt mainly with smell. Later‚ the thalamus evolved to receive sensory input from the midbrain and the hindbrain and to pass it on to cerebrum * Cerebrum integrates sensory and motor
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from the sacral plexus (S2–S4) and run into the pudendal nerve‚ send preganglionic fibers to neurons of the intramural plexus‚ which in turn sends fibers to smooth muscle cells‚ stimulating the contractile function. Also important are the intrinsic reflexes located in the colon and rectal wall‚ as well as throughout the gastrointestinal tract; the colocolonic reflex is finely organized so
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the clock in the background‚ jumping into a hot bath or cold lake. After a short time‚ the body reduces the amount of information arriving at the cerebral cortex. Most sensory information is routed towards the spinal cord and triggers involuntary reflexes such as withdrawal reflex e.g. removing the hand from a hot stove. We can
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has many functions. The nervous system has three main functions- sensory‚ integration‚ as well as motor. There are two components or the nervous system (the central and peripheral nervous system) as well as two subdivisions (the autonomic or involuntary and the somatic or voluntary nervous system) that are complex and each have a specific job that they do within this body system. Cerebral palsy is typically caused by damage to the brain before or at birth. Cerebral
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The Human Body Systems By Yash Dhayal‚ Mathew Nemet‚ and Tom Battaglini Table Of Contents Overview * Skeletal system - Functions and Parts * Muscular System - Types of Muscles * Integumentary System - Functions * Circulatory System - Parts of the Circulatory System * Immune System - Organs and Cells of he Immune System * Respiratory System - Parts of the Respiratory System * Digestive System * Urinary System * Endocrine System * Nervous System Overview *
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spinal cord. The spinal cord is commonly known as a pathway from the brain to the body. Peripheral Nervous System: The peripheral nervous system lies outside the central nervous system. It consists of two parts the somatic nervous system and the autonomic nervous system. The autonomic nervous system has two parts of its own. Those parts are sympathetic nervous system and
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Foundations of Psychology PSY300 September 4‚ 2011 Foundations of Psychology It is just another normal day for you. You were taking a leisurely stroll through the park before you decided to rest for a minute on a bench. And that is when you notice the man sitting next to you‚ singing quietly to himself. He seemed normal at first glance‚ but you begin to notice that he looks disheveled. Hair a little frazzled‚ and clothing a bit wrinkled. At first it seems no big deal. Then you
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10/21/14 Nervous system: one of the eleven major body organ systems in animals; coordinates and controls actions of internal organs and body systems; receives and processes sensory information from external environment; coordinated short-term reactions to these stimuli. Cell body: the part that contains the nucleus and most of the cytoplasm and the organelles. Axon: sends messages away from the cell body to other neurons. Dendrite: short‚ highly branched fibers that carry signals toward the cell
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Introduction Competitive anxiety is usually follow the feeling of tension and stress combined with high arousal of the autonomic nervous system. The duration and intensity of the anxiety state change according to the stress stimuli the athlete face and period subjective threat created by stimuli. If the arousal is too high or too low it may lead a poor performance. Definition of Anxiety A negative of emotional state in a person combination with nervousness‚ worry and fear. W. Stewart in
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the ________ system controls brain and spinal cord central The ________ nervous system controls the skeletal muscles. autonomic parasympathetic afferent sympathetic somatic somatic The part of the peripheral nervous system that carries sensory information to the CNS is designated autonomic. motor. afferent. efferent. somatic. afferent The efferent division of the peripheral nervous system innervates: glandular cells heart muscle cells smooth muscle cells skeletal muscle cells All of
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