Biology revision – understanding ourselves B1
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Term 1 topics (30% of the exam): • Skeleton • Muscles • Nervous System • The Brain Skeleton and Muscles • Skeletal system is all the bones in the body and the tissues that connect them • Average human has 206 bones • Bones: - Composed of living cells - Has protein called collagen, which makes it strong (Collagen: strong fibers) - Contain calcium sulphate and phosphorous which makes it hard - 2 types: compact bone
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Chapter 4 Learning outcomes 4-1 Identify the four major types of tissues in the body and describe their roles. The four major types of tissues are epithelial, connective, muscle, and neural tissue. The functions of each are that the epithelial tissue covers exposed surfaces, lines internal passageways, and chambers, and forms glands. The connective tissue fills internal spaces, provides structural support for other tissues, transports materials within the body and stores energy. The muscle tissue
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December 15, 2013 This paper will explain the communication process of the neurons in the brain, the major regions of the brain and what functions of behavior the systems of each region control, and the sensory process. Part I There are 100 billion neurons in your brain. They are the basic building block of the nervous system. They are also known as nerve cells. There are three parts to a neuron, the dendrites, the cell body and the axon. Using electrical and chemical signals neurons convey
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Prakriti Khanal Mr. Andrew Young ENG 111 1/24/2014 “Memories play a confusing role. They make me laugh when I remember the time I cried together! But make me cry when I remember the time I laughed together. They too can make me mad but, for sure, no matter what emotion they carry, they all share a place deep in my heart.” Every moment, when I recall them in my mind, they appear to be fresh. I cannot make myself believe that I already passed those times and will never be in the
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Neurotransmitters are used by the brain to communicate with itself and the nervous system; they are released and received by the brains many nerves cells also called neurons. Neurotransmitters are used for neurons to communicate with each other, communication between neurons is continuous. This communication system is essential to all of the brain's functions. (Nemade, et al,2007). Neurotransmitters are endogenous chemicals that are located in the synaptic vesicles found in the synaptic knob in
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Exercise has been touted to do everything from treat depression to improve memory, with the power to cure a host of problems while preventing even more. In particular, exercise leads to the release of certain neurotransmitters in the brain that alleviate pain, both physical and mental. Additionally, it is one of the few ways scientists have found to generate new neurons. Much of the research done in this area has focused on running, but all types of aerobic exercise provide benefits. Although the
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| The Effects of Methylmercury in Fish | | | Nicole Lange | 4/4/2011 | | Nicole Lange Topic Paper SPEA H316 April 4, 2011 The Effects of Methyl Mercury in Fish Living Organisms, such as Fish, have the capacity to methylate mercury compounds present in pollution. Mercury is most commonly found in industrial waste, mine tailings, agricultural drain water impoundments, and atmospheric disposition from electrical power. The effects of methyl mercury found in fish have more
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neuron is reached at how many millivolts? Q.7) Glands are innervated by the somatic motor system. Q.8) Saltatory conduction also occurs in post-synaptic fibers. Q.9) Typically, what is the charge of a neuron at rest? Q.10) The autonomic nervous system is responsible for maintaining the constancy of the body’s internal environment (homeostasis). Q
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communicate with another? The human body is composed of countless cells, all obtaining a specific purpose in our bodies. One of the most important elements that contribute to the make up of the human body are neurons. A neuron is a nervous system cell, responsible for transmitting pieces of information throughout our bodies by creating messages that are relayed throughout the body. There are two main components that make up a nerve cell (neuron), those of which include the axon and dendrites
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