lecture 7 meurotransmitters 1 cont

lecture 7 meurotransmitters 1 cont - 10/1/2008 Importance...

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10/1/2008 1 Importance of the Nervous System Functions – Detect stimuli in the environment – Determine the significance of the environmental stimuli – Make a decision based on the stimuli Execute a response – Execute a response Organization of the Nervous System: Two Major Divisions Peripheral Nervous System (PNS) – Detects environmental information inside and outside the body which is inside and outside the body, which is transmitted to the CNS Central Nervous System (CNS) – Recognizes and analyzes information from the PNS, makes decisions, and transmits decisions to glands, organs, and muscles for execution
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10/1/2008 2 Organization of the Nervous System: Peripheral Nervous System – Somatic Nervous System : Includes both sensory (external and internal) and motor (skeletal muscles) Autonomic Nervous System: Motor system that regulates internal – Autonomic Nervous System : Motor system that regulates internal environment (organs). Central Nervous System – Spinal Cord : Located in vertebrate spinal column that is responsible for limited analysis and decision making (reflexes), transmits information to and from the brain. –Bra in : Located in the skull, responsible for analyzing sensory
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10/1/2008 3 Anatomical Directions Used for locating structures with the body: – Anterior —toward the front (e.g., dog’s nose) – Posterior —toward the rear (e.g., dog’s tail) – Ventral —toward the belly – Dorsal —toward the back – Rostral —toward the head – Caudal —toward the tail – Medial —toward the midline – Lateral —away from the midline – Superior—above a structure – Inferior
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lecture 7 meurotransmitters 1 cont - 10/1/2008 Importance...

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