8. "Thermoregulation" is the process in which your body regulates hypothalamus temperature to its normal body temperature. 9. Hypothalamus is the portion of the brain that contains sensors that monitor body temperature. 10. a) The hypothalamus senses the high temperature so it sends sends to the brain. This creates a reaction as the blood vessels in the skin dilate to radiate heat‚ and sweat glands increase sweat production. b) The two mechanism the body uses to heat itself are when the blood
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within a relatively narrow temperature range. Accordingly the human body have anatomical and physiological mechanisms that keep body temperatures within acceptable limits‚ regardless of environmental conditions. This homeostatic process is called thermoregulation and it involves constantly balancing heat-producing and heat-losing mechanisms. If the body temperature is not maintained within these acceptable limits serious physiological changes can occur. If the body temperature falls below 36ºC or goes
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HSC OPTION: SPORTS MEDICINE How are sports injuries classified and managed? * Ways to classify sports injuries * Direct and indirect * Direct injuries are sustained from an external force causing injury at the point of contact‚ e.g. a hockey player receiving a bruise from being struck on the leg by a stick during a game. * Indirect injuries usually involve the athlete damaging the soft tissues such as the ligaments‚ tendons or muscles of the body through internal or external forces
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Thermoregulation is a critical physiological function that is closely associated with the neonate’s survival. Extremely low birth weight infants have inefficient thermoregulation due to immaturity and care giver procedures such as umbilical line insertions‚ intubations‚ and chest xrays can lead to heat loss as well. As a result‚ infants may exhibit cold body temperatures after birth and during their first 12 hours of life. Thermoregulation plays a unique and crucial role in the nurturing and development
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1. It is estimated that uranium is relatively common in the earth’s crust‚ occurring in amounts of 4 g/metric ton. A metric ton is 1000 kg. At this concentration‚ what mass of uranium is present in 1.0 mg of the earth’s crust? a) 4 nanograms b) 4 micrograms c) 4 milligrams d) 4 × 10–5 g e) 4 centigrams Ans: a) 4 nanograms Page: 1.3‚6 2. In 1928‚ 1.0 g of a new element was isolated from 660 kg of the ore molybdenite
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The future is among us or shall I say the imitation of God’s power is. Putting this into perspective imagine that you’re a soldier on a battlefield and you’ve been shot but nothing vital has been damaged‚ but one of your major arteries has been nicked. Without getting medical attention the possibility of you dying from blood loss is at a high. The estimated time of death is 20 minutes and the drive to the emergency room is 25. From surveys of hospitals from all over the US is has been proven that
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- ECTOTHERMS are organisms that have a limited ability to control their body temperature. Their cellular activities generate little heat. Their body temperatures rise and fall with ambient temperature changes. Most organisms are ectotherms. Examples are plants‚ all invertebrates‚ fish‚ amphibians and reptiles - ENDOTHERMS are organisms whose metabolism generates enough heat to maintain an internal temperature independent of the ambient temperature. Examples are birds and mammals - EXTENSION (Not
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Red Kangaroo: Macropus Rufus The Kangaroo is an endotherm. Endotherms generate heat from their body’s metabolism. So their internal body temperature is independent of the external temperature. Endotherms eat more food than ectotherms. This higher food intake results in an increased level of metabolism‚ which is required to produce heat. The Red Kangaroo inhabits inland plains throughout Australia. They prefer open plains where trees and bushes are scarce. The fur on Kangaroos maintains an insulating
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CURRICULAR LESSONS Life Sciences Activities For students who are visually impaired in the science classroom: Life Cycle of Frogs‚ Dragonflies and Butterflies Overview In this lesson‚ students learn the concept of metamorphosis in an organism’s life cycle by studying the growth and development of butterflies‚ frogs‚ and dragonflies. Objectives • Understand that all animals have a life cycle that includes being born‚ developing into an adult‚ reproducing‚ and eventually dying • Understand
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BIOL 152-35 Professor Weller 14 February 2012 Effects of Temperature on Goldfish Respiration Introduction This experiment was designed to identify the effect of cold-water temperatures on the respiration rate of goldfish. The respiration rates helped to identify the goldfish as being ectotherms or endotherms. Organisms exchange gases with their environment through a process called respiration or breathing. Aerobic respiration‚ also known as aerobic metabolism‚ occurs when oxygen is taken
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