The brain and spinal cord are made up of many cells‚ including neurons and glial cells. Neurons are cells that send and receive electro-chemical signals to and from the brain and nervous system. There are about 100 billion neurons in the brain. There are many more glial cells; they provide support functions for the neurons‚ and are far more numerous than neurons. There are many type of neurons. They vary in size from 4 microns (.004 mm) to 100 microns (.1 mm) in diameter. Their length varies from
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brain especially the astrocyte cell. The studies were conducted to understand the process of methylmercury entered the human body‚ damaging the astocytes and neurons‚ effects on prenatal period‚ early childhood exposure and other effects on human nervous system. 2.0 Introduction Methylmercury is a dangerous organic heavy metal which can obtain from natural such as volcanoes and forest fire and anthropogenic sources such as burning coal and mining. It was recognized and used as a fungicide and catalyst
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of serotonin will thereby increase the concentration of serotonin molecules in the a. axon terminals. b. synaptic gaps. c. glial cells. d. endocrine glands. 1 out of 1 Correct! 3. The vast majority of neurons in the body’s information system are a. stem cells. b. interneurons. c. motor neurons. d. sensory neurons. 1 out of 1 Correct! 4. The release of epinephrine and norepinephrine ________ blood pressure and ________ blood sugar levels. a. raises; raises b. lowers; lowers
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Endings Nerve Endings SENSORY MODE Vision Hearing Rotational acceleration Linear acceleration Smell Taste Touch – Pressure Warmth Cold Pain Joint Movement and Position Muscle Length Muscle Tension All sensory information arrives at the central nervous system (CNS) in the form of action potentials and the stronger the stimulus‚ the higher the frequency of action potentials. For example‚ touch‚ pressure‚ pain‚ temperature and taste sensations arrive at the primary sensory cortex. The CNS interprets
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Disscusion In this experiment‚ we are required to observe‚ explain‚ identify and recognize the phylum under Kingdom Animalia. The phylum that we need to identify was Phylum Porifera‚ Phylum Cnidaria‚ Phylum platyhelminthes‚ Phylum Nematoda‚ Phylum Rotifera‚ Phylum Mollusca‚ Phylum Arthropoda‚ Phylum Echinodermata‚ Subphylum Cephalochordata and Subphylum Vertebrata (Fishes). Phylum Porifera The characteristic of members of Phylum porifera include asymmetrical or radial symmetry body plan. There
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Why do we jump when we watch a scary movie? People jump when watching scary movies because the loud noise or flashing picture (the stimulus) passes through out eyes or ears (the receptor) and our endocrine system responds to the surroundings thus sending electrical impulses to the brain causing our muscles (the effectors) to spasm causing us to jump or scream. In addition‚ the blood has a increased amount of hormonal adrenaline and a higher heart rate. Hormones Hormones are a chemical substance
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studies links between biology and behavior We are bio-psycho-social systems. To understand our behavior‚ we need to study how biological‚ psychological and social systems interact. NEURAL COMMUNICATION Neuron – nerve cell‚ the building block of the nervous system Neurons send out electrochemical communications to the brain and the rest of the body THREE TYPES OF NEURONS that carry information throughout the nervous system: Sensory Neurons (Afferent) neurons that carry incoming information
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CETC INFO SHEET Series of 2009 MAKE THAT SUGAR FROM COCONUT TODDY Seven to eight liters of fresh tuba can produce one kilo of coconut sugar! Yes! Tuba‚ our popular alcoholic drink‚ can be transformed into sugar. And this sugar has a high potential for multi- uses as natural sweetener. It is mostly used for cooking desserts and as raw material of food industries ‚ like confectionery. Thailand is already exporting coconut sugar to Australia‚ Japan‚ United
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A Response to Olson’s Animalism 1. Introduction There is a human organism located exactly where you are located. Eric Olson argues that you are identical to that organism. This view is known as animalism. His “thinking animal” argument takes the following form: (1) There is a human animal where you are located; (2) If there’s a human animal where you are located‚ it is thinking; (3) The only thing thinking where you are located is you; and (4) So‚ you are a human animal. One argument‚ which
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Vocabulary Anesthesiologist- is a physician who specializes in anesthesiology. Auditory/Eustachian tube - is a tube that links the nasopharynx to the middle ear. Auricle-is the outer projecting portion of the ear. Also called pinna. ANS- Is the system of nerves that regulates body functions which have no direct voluntary control. Cerebrum- is the anterior and largest part of the brain‚ consisting of two halves or hemispheres and serving to control voluntary movements and coordinate mental actions
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