donor’s somatic cell nucleus.[9] The oocyte will react on the somatic cell nucleus‚ the same way it would on sperm cells.* First person: Hans Spemann‚ a German embryologist was awarded a Nobel Prize in Physiology or Medicine in 1935 for his discovery of the effect now known as embryonic induction‚ exercised by various parts of the embryo‚ that directs the development of groups of cells into particular tissues and organs. In 1928 he and his student‚ Otto Mangold‚ were the first to perform somatic-cell
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centre‚ the brain and then it activates the effectors which bring the heart rate back to normal. The sinoatrial node (SA) is part of the heart‚ it is known as the pacemaker. The SA controls the rate of contraction. Autonomic nervous system The heart is controlled by the autonomic nervous system which is two branches called the sympathetic nerves system and the parasympathetic nervous system. The sympathetic nervous system is active when the body is undergoing muscular work such when we are doing
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Prenatal Development References: Santrock (2009). Child Development Berk (2008). Infants‚ Children‚ and Adolescents Pregnancy Signs and Symptoms • • • • • • • • • Spotting or Implantation bleeding Delay in menstruation Swollen/tender breasts Fatigue/tiredness Nausea/Morning sickness Backaches and headaches Frequent Urination Darkening of Areolas Food craving or food aversion The Course of Prenatal Development • Divided into 3 periods: The Germinal Period The Embryonic Period The Fetal
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visceral pleura and outer layer called parietal pleura. While the visceral pleura does not have nocicpetors and does not give rise to the pain sensation‚ the parietal pleura can sense pain when inflamed‚ since it is innervated by numerous somatic nerves that have somatic pain receptors. Between the two layers‚ there is a space called pleural space that has a thin layer of fluid‚ and its function is to lubricate the pleural surfaces when breathing. When the surfaces become roughened and inflamed because
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NU 545 Unit 2 Study Guide ! 1. Review the anatomy of the brain. Which portion is responsible for keeping you awake‚ controlling thought‚ speech‚ emotions and behavior‚ maintaining balance and posture? - Ch. 15 p. 454 Box 15-3 - Brainstem- midbrain‚ medulla oblongata‚ and pons Reticular Formation-Collection of nuclei within brainstem that maintains wakefulness and works in conjunction with the cerebral cortex and together they are known as the reticular activating system. P. 454 -
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is nerve damage that can result from damage of blood vessels that feed those nerves. Diabetic neuropathy can be classified as peripheral‚ autonomic‚ proximal and focal. Each affect very different part of the body in various ways. Peripheral neuropathy‚ is the most common type‚ causing pain or loss of felling in the toes‚ feet‚ legs‚ hands‚ and arms. Autonomic neuropathy‚ causes changed in digestion‚ bowel and bladder function‚ sexual response‚ and perspiration. As well as affecting the nerves that
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The Biological Effects of Radiation Whether the source of radiation is natural or man made‚ whether it is a small dose of radiation or a large dose‚ there will be some biological effects. Radiation causes ionizations of atoms‚ which will affect molecules‚ which may affect cells‚ which may affect tissues‚ and so on. Although most people tend to think of biological effects in terms of the effect of radiation on living cells‚ in actuality‚ ionizing radiation‚ by definition‚ interacts only with
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anxiety disorders. The DSM-IV characterizes GAD by two main symptom clusters‚ the first of which is excessive and uncontrollable worry about a number of events and activities. The second cluster consists of six somatic symptoms (also referred to as associated symptoms in the DSM-IV)‚ the six somatic symptoms include: restlessness‚ feeling on edge‚ easily fatigued‚ difficulty concentrating irritability‚ muscle tension and sleep disturbance (Diagnostic and Statistical Manual of Mental Disorders‚ fourth edition
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There is a need to implement more recreational activities and exercise to the existing after-school program‚ which offers an educational enrichment program. Studies have shown that children have better academic performance when they are routinely motivated to engage in moderate-intensity aerobic exercise. Furthermore; studies have shown that “both children with ADHD and without ADHD exhibited greater response accuracy and stimulus-related processing‚ with the children with ADHD also showing selective
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Med-Surg Practice Test B Remediation Kirsten Lute Cancer Treatment Options: Safety Precautions for a Client who has a Sealed Radiation Implant (Therapeutic Procedure‚ RM AMS RN 9.0 Chp 92) Inform client of the need to remain in an indicated position to prevent dislodgment of the radiation implant. Instruct client to call the nurse for assistance with elimination. Instruct client and family about radiation precautions needed in the health care and home environments. Infection Control: Precautions
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