The Brain Brainstem The brain stem plays an important role in basic attention‚ arousal‚ and consciousness. It contains the medulla oblongata‚ cerebellum‚ midbrain and pons. Its functions include things that you need to survive‚ such as breathing‚ digestion‚ heart rate‚ blood pressure‚ and arousal which makes you awake and alert.All information from our body passes through the brain stem on the way to the brain. Medulla Oblangata The medulla oblongata connects the brain and spinal cord.
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Describe the key structures and functions of a eukaryotic and prokaryotic cell. Eukaryotic Cell (1) There are many organelles in the eukaryotic cell micrograph above. Some of these organelles are displayed in the prokaryotic micrograph and so‚ I have described the shared organelles in the prokaryotic micrograph section. Mitochondria The mitochondria cells break down nutrients which then creates energy. They act like a digestive system. This process is called cellular respiration. The
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Brain tumors are abnormal growth of tissue in the brain or spinal cord. This abnormal growth disrupts the normal functions of the brain. Brain tumors are categories based on where they originated and whether they are cancerous or noncancerous. They can be benign which means they do not contain cancer cells‚ they grow slowly‚ and do not spread into other tissue. The tumors can also be malignant‚ which means they contain cancer cells and spread rapidly into surrounding tissue. ("Brain Tumors") Surgery
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Worksheet Fill in the following tables: Type of Microscopy State of the Cell (live‚ dead‚ both) Limit of General steps for resolution sample preparation/ fixation Advantage of Technique Phase contrast light microscope Amplitude contrast microscope Optical tweezers Fluorescence/ Confocal Microscopy Transmission Electron Microscope (TEM) Scanning Electron Microscope (SEM) Scientist Robert Hooke Antonie van Leeuwenhoek Ernst Karl Abbe Fritz Zernike Shimomura‚ Chalfie‚ and Tsien Ernst Ruska Schleiden
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The Brain The central core of the human brain‚ often referred to as the “old brain”‚ is the most primitive part of the brain and can be found in all vertebrates dating back more than 500 million years. The central core is designed to help the human body with basic survival functions such as breathing‚ heartbeat‚ movement‚ balance‚ and sleep. Without the central core‚ the brain would not be able to do major task like telling our hearts to beat and how fast. The central core of the human brain
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contains lipids‚ the dye will colour the lipids red. The Grease Spot test can also be used identify the presence of lipids in a sample. Lipids make unglazed paper‚ such as the outside of a paper bag‚ translucent. Phospholipids have a very similar structure to triglycerides. However‚ in phospholipids‚ an additional functional group containing a phosphate group replaces one of the fatty acids. They are the main component of the cell membranes of every cell in
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Each cell can be regarded as a metabolic compartment‚ as separate place where the chemical processes of that cell occur‚ the cell is made up of different organelles each specifically designed to carry out their function‚ and this is known as a cells ultrastrucure. All cells have a cell surface membrane; these are made up of phospholipids and make up a bilayer. A phospholipid has a hydrophilic head and a hydrophobic tail which is made up of 2 fatty acid chains; these are arranged is two layers with
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Psy-101-22 W Professor Kulpa6/16/2014 The Brain Neuroscientists have proven that the activity in the brain is altered when an individual is subject to extremely stressful or exciting circumstances. In the documentary multiple unique qualities of the brain are explored‚ studied‚ and tested to determine how we can benefit from understanding the functions of the brain. Learning about the fundamentals of the brain in the text made understanding the procedures our brain undergoes to process information‚ react
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Quiz #3 Josi Leger Neurons - Neurons are nerve cells that are located in the nervous system‚ the main function of the neurons is to send and transmit messages so that we may function and move. Dendrite – Are located on neurons and they look like tree shape stems‚ they are what sends the signals out from the neuron and they also receive signals along with sending electrical stimulations to the soma. Synaptic Gap – This is a small gap between the cell membrane and the synapse it separates the
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Running Head: Brain Development: Are the Early Years Really the Most Important? Brain Development: Are the Early Years Really the Most Important? Brain Development: Are the Early Years Really the Most Important? Many people do not think the early years are the most important to a child’s brain development. They seem to have the attitude that children can be taught when they are old enough to learn the skills. But then the question remains as to when you should start teaching those skills
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