brainstem and what parts compose it? What is the function of the medulla oblongata? Name the parts of the corpora quadragemina and what is the function of each part. What is anencephaly? What are the parts of the diencephalon? What do the thalamus‚ hypothalamus‚ pineal gland do? What is melatonin? What sensory input does not go through the thalamus? What and where is the cerebellum and what is its functions? What is the arbor vitae made of and where is it found? What is the vermis? What is the cerebrum
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PSYCH Ch. 3 Neurosystem (Central Nervous System) CNS – Brain & Spinal Cord (Peripheral) PNS Soma – cell body‚ contains nucleus and much of chemical machinery common to most cells Dendrite – part of neuron that is specialized to receive information Axon – transmits information away from the soma to other neurons/muscles/glands Action potential – brief period where channels open and it changes chemical reaction within cell Absolute Refractory Period – minimum length of time after an
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the Endocrine System (known as ductless too...). This is composed of a lot of things... They are:pituitary gland - below the brain (master gland)‚ pineal gland - brain (It`s called the "third eye" by some‚ because its sensitive to light cycles)‚ hypothalamus - also in the brain (it works with the pituitary)‚ the thyrodic - neck (controls the metabolism)‚ adrenal - kidneys (responsible for the adrenaline)‚ pancreas - near stomach (produces insulin)‚ ovaries - on females and testes - on males (it produces
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circadian rhythms is called chronobiology. The "master clock" that controls circadian rhythms consists of a group of nerve cells in the brain called the suprachiasmatic nucleus‚ or SCN. The SCN contains about 20‚000 nerve cells and is located in the hypothalamus‚ an area of the brain just above where the optic nerves from the eyes cross (Circadian Rhythms). Some of the factors that can affect a biological rhythm include delaying bedtime to socialize or finish reading a book‚ academic activities‚ employment
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levels‚ and emotion. Kasamatsu and Hirai – monks after 48h of not eating‚ drinking‚ sleeping started to have hallucinations and the level of serotonin was increased. These higher levels of serotonin activated the parts of the brain called the hypothalamus and the frontal cortex‚ resulting in hallucinations. Drugs given to people are not neurotransmitters‚ but they stimulate or block specific neurotransmitter. Mertinez and Kesner –role of acetylcholine on memory. Rats going through the maze‚
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potential of the blood is low (very negative) the osmoreceptor cells then lose water by osmosis‚ thus causing them to shrink stimulating neurosecretory cells in the hypothalamus. Neurosecretory cells are specialised neurons that produce and release ADH into the body‚ ADH is manufactured in the cell body within these cells‚ lying in the hypothalamus. ADH flows through the axon into the terminal bulb in the posterior pituitary gland‚ where it is stored until needed. When neurosecretory cells are stimulated
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fashion to them. Many endocrine glands are discrete organs whose primary functions are the production and secretion of hormones. The main endocrine glands include the pituitary gland‚ pancreas‚ ovaries‚ testes‚ thyroid gland‚ and adrenal glands. The hypothalamus is a neuroendocrine organ. Other organs which are not so well known for their endocrine activity include the stomach‚ which produces such hormones as ghrelin. Most regulation of hormone levels in the body is conducted by negative feedback: if
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sustained effects 2. The area of the brain that is involved in regulating “primitive” functions like water balance‚ appetite‚ etc is the hypothalamus. It has both anatomic and functional connections to the pituitary gland or hypophysis by a narrow stalk‚ the infundibulum. The adenohypophysis or anterior
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PSC 101 EXAM 2 Study Guide Part 1- Sensory Systems 1. Sound can best be thought of as a) compression of air molecules by an object. b) changes in air pressure produced by the vibration of an object. c) particles of energy that travel at better than 20 miles per hour. d) packets of energy. e) expansion of air molecules produced by an object as it moves through air. 2. The loudness of a sound is related to a) the amplitude of sound vibration. b) the distance between the successive
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Human Physiology An Integrated Approach‚ 6e (Silverthorn) Chapter 7 Introduction to the Endocrine System 1) Which of the following is NOT a method of hormone action A) control of enzymatic reaction rates B) control of ion or molecule transport across cell membranes C) control of electrical signaling pathways D) control of gene expression and protein synthesis E) All are methods of hormone action. Answer E Section Title The Classification of Hormones Learning Outcome 7.1 Skill Level I Reviewing
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