THE NERVOUS AND THE ENDOCRINE SYSTEM. Humans need both the Nervous and the Endocrine systems basically because they do different things in different ways. They both have a co-ordination role and send instructions to other parts of the body. The nervous system does this by way of neurotransmitters‚( chemical messengers)‚ which are able to get messages through at very high speeds‚ and the endocrine system by way of hormones‚( also chemical messengers)‚ which are released from glands and travel
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internal organs‚ monitoring information from the autonomic nervous system Basic functional cell of nervous system Transmits impulses (up to 250 mph) Parts of a Neuron Dendrite – receive stimulus and carries it impulses toward the cell body Cell Body with nucleus – nucleus & most of cytoplasm Axon – fiber which carries impulses away from cell body Schwann Cells- cells which produce myelin or fat layer in the Peripheral Nervous System Myelin sheath – dense lipid layer which insulates the
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Disorders of the Nervous System The way we think‚ our emotions‚ and the ability of our body to tell itself to move all connect back to the nervous system. If one part is not connected to another or if something never developed properly it can create a major problem. Disorders can occur within the brain or can be malfunctions of the nerves. Disorders can range from Palsy and Parkinson’s in which symptoms are movements such as tremors to Alzheimer’s which is mental deterioration and loss of memory
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Page 1 of 5 The Brain and the Nervous System The human brain and the nervous system are essential for human life. They run the autonomic and conscious processes of the body. All of the body organs and processes independent that not conscious of are controlled by the brain. Being one of the most important of the body when issues there must be immediate solutions or the entire body will shut down. The brain is fragile and has huge functions in the body so it must be taken care of‚ but if not
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Bibliography/Citations Page "About the Nervous System." About the Nervous System. N.p.‚ n.d. Web. 15 Aug. 2012. <http://medicalcenter.osu.edu/patientcare/healthcare_services/nervous_system/about/Pages/index.aspx>. Bailey‚ Regina. "Nervous System." About.com Biology. N.p.‚ n.d. Web. 15 Aug. 2012. <http://biology.about.com/od/organsystems/a/aa061804a.htm>. "Basic Anatomy - Organs & Organ Systems." Basic Anatomy - Organs & Organ Systems. N.p.‚ n.d. Web. 15 Aug. 2012. <http://web
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components of the human nervous system‚ inclusive of the CNS (central nervous system) the somatic system‚ and both divisions of the autonomic nervous system (ANS). Include in your outline the major distinctions among these systems. Human Nervous System – Overview The human nervous system is composed of all nerve tissues in the body. The functions of nerve tissue are to receive stimuli‚ transmit stimuli to nervous centers‚ and to initiate response The nervous system has two distinct parts
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Lab IX: Nervous System Histology and Spinal Cord Part II: Neurons and nerve struture 1.) There are three types of neurons. The first is the multipolar‚ which is the most common‚ and they are found as motor neurons and interneurons throughout the central nervous system. The second type of neuron is the unipolar neuron‚ which are also called psuedounipolar neurons. They are found as spinal and cranial sensory neurons. The last neuron is the bipolar neuron. They are only found in olfactory‚ visual
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surrounds the entire nerve trunk and gives off vascular connective tissue septa that traverse the nerve and separate fascicles from one another. | | Single myelinated axon | Normal nerve | Axons thicker than one micron in the CNS and peripheral nervous system (PNS) are myelinated. Myelin is a spiral sheet of cell membrane wrapped around the axon. In the CNS‚ myelin is produced by oligodendroglial cells and in the PNS by Schwann cells. Each oligodendrocyte makes multiple segments of myelin that wrap
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1. Differentiate between the somatic nervous system and the ANS. Somatic nervous system includes all of the neural pathways (neurons) that result in voluntary actions‚ basically anything that you can tell your brain to do like move your arm or stick out your tongue. The autonomic nervous system includes all of the neural pathways that result in involuntary actions‚ like your brain telling your eyes to blink or your intestines to contract‚ basically anything that you cannot control. 2. Describe
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Psychology The Nervous System The nervous system is divided into two main areas‚ the peripheral nervous system and the central nervous system. The central nervous system controls the brain and spinal cord. The average human brain weighs approximately 3 pounds and contains approximately 100 billion neurons‚ as well as trillions of “support cells” called glia. The spinal cord weights approximately 35-40 grams and is around 43 cm long in adult woman and 45 cm long in adult men. The frontal
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