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14 Cards in this Set
- Front
- Back
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List the body systems
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Digestive, cardiovascular, respiratory, reproductive, nervous, renal, endocrine
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Name the different stages of the digestive system
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Ingestion
Digestion Absorption Metabolism Excretion |
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What is the name of the movement of food through the digestive tract?
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Peristalsis
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Describe the cardiovascular system
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Consists of: heart, blood, circulatory and lymphatic system
Blood carries nutrients and oxygen to tissue and returns waste material to lungs, liver and kidneys |
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Describe the respiratory system
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External respiration - gaseous exchange between air and blood
Internal respiration - gaseous exchange between blood and tissue |
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Describe the different stages of the reproductive system
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Copulation, fertilisation, implantation, gestation, parturition, lactation
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Describe the nervous system
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Function - take in information from internal and external environment and to initiate an appropriate response
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Describe the two functions of the renal system
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Osmoregulation - composition and volume of tissue fluid must be constant
Excretion - removal of nitrogenous waste and water from the body |
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Describe the endocrine system
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Composed of glands which secrete hormones to target specific organs
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Describe homeostasis
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A physiological state in which the physical and chemical conditions of the internal environment are maintained within tolerable ranges
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What is negative feedback?
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Net effect is to decrease the original stimulus or reduce its effects
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Give examples of negative feedback
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Blood pH, pressure, glucose; body temperature
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What is positive feedback?
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Response that increases original stimulus or accelerates its effects
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Give examples of positive feedback
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Parturition contractions; orgasm ejaculation; blood coagulation; lactation
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