phonoreceptors? Q.6 Name the other system besides nervous system in the body of higher animals. Q.7 What is a neuron? Q.8 What are receptors? Q.9 Mention the receptors for light and sound in animals. Q.10 What is the general scheme of travelling nervous impulses in the body? Express the events briefly by line diagram only. Q.11 Look at figure given below and identify the parts of a neuron. i) Where information is acquired. ii) Through which information travels as an electrical impulse
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APPROACH AND RECENT BRAIN RESEARCH 2 Abstract New technological advances in brain research allow scientists better understanding of how the brain develops. From birth‚ the task of the brain is to establish and reinforce connections between neurons. Dr. Montessori’s approach on brain development in young children coincides with much of the most recent brain research. Dr. Montessori discovered from her observations that the early years of a child’s life is the period when the brain’s capacity
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Alvaro Comino LAB REPORT 4 CONNECTIVE TISSUE (SPECIALIZED) I. Abstract In this experiment‚ identification and classification of different types of connective tissue was performed. Also‚ cells and extracellular matrix was to be identified in them. For this‚ different already prepared slides were chosen and observed under the microscope to then identify the different parts. II. Introduction Apart from the bone and cartilage‚ the rest of the specialized connective tissues are divided
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answer: a. extracellular recordings of the action potential 3. An action potential is usually initiated in an axon at or near Your answer : c. the trigger zone Correct answer: d. all of the above 4. The initiation of an action potential in a sensory neuron in the body normally Your answer : d. occurs in the dendrites. Correct answer: a. follows a sufficiently
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Neurotransmitters Dr. C. George Boeree Neurotransmitters are the chemicals which allow the transmission of signals from one neuron to the next across synapses. They are also found at the axon endings of motor neurons‚ where they stimulate the muscle fibers. And they and their close relatives are produced by some glands such as the pituitary and the adrenal glands. In this chapter‚ we will review some of the most significant neurotransmitters. Acetylcholine Acetylcholine was the first neurotransmitter
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GDSC 1017 Science and Technology Behind the Movies Group Project Topic: Artificial Memory Group 2: Chan Shirley 12021717 International Journalism Fong Wing Yee 12204684 Media Arts Tang Nga Ting 12210773 International Journalism Zhang Xinge 12252034 Government and International Studies 1 Abstract of the project report: We are going to discuss about the elements of artificial memory through the three movies: Total Recall‚ Eternal Sunshine of the Spotless Mind and Inception
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Exam 3 Review Sheet Genetics terms: phenotype‚ genotype‚ allele‚ dominant‚ recessive‚ homozygous‚ heterozygous‚ multiple alleles‚ codominance Phenotype: physical appearance Genotype: genetic composition Allele: alternate form of a gene Dominant: trait that will be expressed Recessive: trait that will be masked by dominant trait Homozygous: both alleles are the same Heterozygous: the alleles are different Multiple Alleles: Codominance: Sex determination – all possibilities Xyy: Xxy
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randomly vs. fixed time intervals‚ and upon repetition. Introduction Our bodies react appropriately to changes that occur in the environment during our day-to-day activities. When responding‚ an external stimulus has to be detected by one or more neurons. These then send this sensory information to the nervous system where processing occurs. If a motor signal is started‚ it usually involves a number of action potentials‚ which lead to muscle contraction and movement of other parts of the body in reaction
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Much like cells are the fundamental unit of a living being‚ neurons are the fundamental unit of the nervous system. These neurons work together with other excitable cells to produce action potentials when they receive electrical or chemical stimuli. Action potentials can be thought of as an “all-or-nothing” event and occur as a large-scale depolarization when sodium and other positive ions rapidly enter the neuron through membrane channel proteins. Once initiated‚ action potentials travel down the
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inner membrane of the meninges. 6. Describe the two types of cells the brain is made of. Neurons are nerve cells that transmit nerve signals to and from the brain at up to 200mph. gilial cells make up 90% of the brain’s cells. 7. Describe the four primary structures of a neuron. The cell body is the “control center”. Processes are the structures that extend away from the cell body. Signals from other neurons are received at the dendrites. Axon terminals are at the ends of axons and contain neurotransmitters
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