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Nutrition ch 13-18
Exam 3
140
Nursing
Undergraduate 1
12/10/2012

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Term
fitness
Definition
the ability to perform routine physical activity without undue fatigue
Term
overload principal
Definition
the concept that the body will adapt to the stresses placed on it
Term
cardiorespiratory system
Definition
the circulatory and respiratory systems, which together deliver oxygen and nutrients to cells
Term

aerobic exercise

 

Definition
edurance exercise such as jogging, swimming, or cycling that increases heart rate and requires oxygen in metabolism.
Term
stroke volume
Definition
the volume of blood pumped by each beat of the heart
Term
resting heart rate
Definition
the number of times the heart beats per minute while a person is at rest
Term
aerobic capacity or VO2 max
Definition
the maximum amount of oxygen that can be consumed by the tissues during exercise. this is also called maximal oxygen consumption.
Term
hypertrophy
Definition
an increase in the size of a muscle or organ
Term
atrophy
Definition
wasting or decrease in the size of a muscle or other tissue caused by lack of use
Term
endorphins
Definition
compounds that cause a natural euphoria and reduce the perception of pain under certain stressful conditions
Term
maximum heart rate
Definition
the maximum number of beats per minute that the heart rate can attain. It declines with age and can be estimated by subtracting age in years from 220.
Term
overtraining syndrome
Definition
a collection of emotional, behavorial, and physical symptoms that occurs when training without sufficient rest persists for weeks to months
Term
aerobic metabolism
Definition
metabolism in the prescence of oxygen. in this, glucose, fatty acids, and amino acids are completely broken down to form carbon dioxide and water to produce ATP
Term
anaerobic metabolism or anaerobic glycolysis
Definition
metabolism in the absence of oxygen. each molecule of glucose generates two molecules of ATP. glucose is metabolized in this way when the blood cannot deliver oxygen to support aerobic metabolism
Term
creatine phosphate
Definition
a compound found in muscle that can be broken down quickly to make ATP
Term
lactic acid
Definition
a compound produced from the breakdown of glucose in the absence of oxygen
Term
carnitine
Definition
a molecule synthesized in the body that is needed to transport fatty acids and some amino acids into the mitochondria for metabolism
Term
fatigue
Definition
the inability to continue an activity at an optimal level
Term
anaerobic threshold or lactate threshold
Definition
the exercise intensity at which the reliance on anaerobic metabolism results in the accumulation of lactic acid
Term
sports anemia
Definition
reduced hemoglobin levels that occur as a part of a beneficial adaptation to aerobic exercise in which expanded plasma volume dilutes red blood cells
Term
female athlete triad
Definition
the combination of disordered eating, amenorrhea, and osteoporosis that occurs in some female athletes, particularly those involved in sports in which low body weight and appearance are important
Term
amenorrhea
Definition
delayed onset of menstruation or the absence of three or more consecutive menstrual cycles.
Term
heat-related illness
Definition
conditions, including heat cramps, heat exhaustion, and heat stroke, that can occur due to an unfavorable combination of exercise, hydration status, and climatic conditions
Term
hypothermia
Definition
a condition in which body temperature drops below normal. it depresses the central nervous system, resulting in the inability to shiver, sleepiness, and eventually coma.
Term
hyponatremia
Definition
abnormally low concentration of sodium in the blood
Term
glycogen supercompensation or carbohydrate loading
Definition
a regimen designed to maximize muscle glycogen stores before an athletic event
Term
ergogenic aid
Definition
anything designed to increase work or improve performance
Term
conception
Definition
the union of sperm and egg (ovum) that results in pregnancy
Term
lactation
Definition
milk production and secretion
Term
fertilization
Definition
the union of sperm and egg(ovum)
Term
oviducts or fallopian tubes
Definition
narrow ducts leading from the ovaries to the uterus
Term
zygote
Definition
the cell produced by the union of sperm and ovum during fertilization
Term
implantation
Definition
the process by which the developing embryo embeds in the uterine lining 
Term
embryo
Definition
the developing human from 2 to 8 weeks after fertilization. All organ systems are formed during this time.
Term
fetus
Definition
the developing human from the ninth week to birth. Growth and refinement of structures occur during this time
Term
spontaneous abortion/miscarriage
Definition
interruption of pregnancy prior to the seventh month
Term
placenta
Definition
an organ produced from both maternal and embryonic tissues. it secretes hormones, transfers nutrients and oxygen from the mothers blood to the fetus, and removes waste
Term
gestation
Definition
the time between conception and birth, which lasts about 9 months (or about 40 weeks) in humans
Term
small-for-gestational-age
Definition
an infant born at term weighing less than 2.5 kg (5.5 lbs)
Term
pre-term or premature
Definition
an infant born before 37 weeks of gestation
Term
low birth weight
Definition
a birth weight less than 2.5 kg (5.5lbs)
Term
very low birth weight
Definition
a birth weight less than 1.5kg (3.3lbs)
Term
trimester
Definition
a term used to describe each third, or 3-month period, of a pregnancy
Term
cesarean section
Definition
the surgical removal of the fetus from the uterus
Term
large-for-gestational-age
Definition
an infant weighing more than 4kg (8.8lbs) at birth
Term
edema
Definition
swelling due to the buildup of extracellular fluid in the tissues
Term
morning sickness
Definition
nausea and vomiting that affects many women during the first few month of pregnancy and in some women can continue throughout the pregnancy
Term
hypertensive disorders of pregnancy
Definition
high blood pressure during pregnancy that is due to chronic hypertension, gestational hypertension, preeclampsia-eclampsia or preeclampsia superimposed on chronic hypertension
Term
gestational hypertension
Definition
the development of hypertension after the twentieth week of pregnancy
Term
preeclampsia
Definition
a condition characterized by an increase in body weight, elevated blood pressure, protein in the urine, and edema. It can progress to eclampsia, which can be life threatening to mother and fetus
Term
gestational diabetes mellitus
Definition
a consistently elevated blood glucose level that develops during pregnancy and returns to normal after delivery
Term
neural tube
Definition
the portion of the embryo that develops into the brain and spinal cord
Term
pica
Definition
an abnormal craving for and ingestion of unusual food and non-food substances
Term
down syndrome
Definition
a disorder caused by extra genetic material that results in distinctive facial characteristics, mental retardation, and other abnormalities.
Term
teratogen
Definition
any chemical, biological, or physical agent or substance that can cause birth defects
Term
(FAC) fetal alcohol syndrome
Definition
a characteristic group of physical and mental abnormalities in an infant resulting from maternal alcohol consumption during pregnancy
Term
alcohol-related neurodevelopmental disorders
Definition
a spectrum of learning and developmental disabilities and behavioral abnormalities in a child due to maternal alcohol consumption during pregnancy
Term
alcohol-related birth defects
Definition
malformations in the skeleton or major organ systems in a child due to maternal alcohol consumption during pregnancy
Term
sudden infant death syndromes / crib death
Definition
the unexplained death of an infant, usually during sleep
Term
colostrum
Definition
the first milk, which is secreted in late pregnancy and up to a week after birth. it is rich in protein and immune factors.
Term
prolactin
Definition
a hormone released by the anterior pituitary that actson the milk-producing glands in the breast to stimulate and sustain milk production
Term
let-down
Definition
a hormonal reflex triggered by the infants suckling that causes milk to be released from the milk glands and flow through the duct systen to the nipple
Term
oxytocin
Definition
a hormone produced by the posterior pituitary gland that acts on the uterus to cause uterine contractions and on the breast to cause the movement of milk into the secretory ducts that lead to the nipple
Term
failure to thrive
Definition
the inability of a childs growth to keep up with normal growth curves
Term
colic
Definition
inconsolable crying that is believed to be due to pain from gas buildup in the gastrointestinal tract or immaturity of the central nervous system
Term
nursing bottle syndrome
Definition
extreme tooth decay in the upper teeth resulting from putting a child to bed with a bottle containing milk or other sweet liquids
Term
allergen
Definition
a substance, usually a protein, that stimulates an immune response
Term
food tolerance
Definition
an adverse reaction to a food that does not involve antibody production by the immune system
Term
elimination diet and food challenge
Definition
a regimine that eliminates potential allergy-causing foods from an individuals diet and then systematically adds them back to identify any foods that cause an allergic reaction
Term
food jag
Definition
when a child will only eat one food item meal after meal
Term
attention defecit hyperactivity disorder (ADHD)
Definition
a condition that is characterized by a short attention span, acting without thinking, and a high level of activity, excitability, and distractability
Term
puberty
Definition
a period of rapid growth and physical changes that ends in the attainment of sexual maturity
Term
adolescent growth spurt
Definition
an 18-24 month period of peak growth velocity that begins at about ages 10-13 in girls and about 12-15 in boys.
Term
menarche
Definition
the onset of menstruation, which occurs normally between the ages of 10-15 years
Term
binge drinking
Definition
the consumption of five or more drinks in a row for males; 4 or more for females
Term
life span
Definition
the maximum age to which members of a species can live
Term
life expectancy
Definition
the average length of life for a population of individuals
Term
compression of morbidity
Definition
the postponement of the onset of chronic disease such that disability occupies a smaller and smaller proportion of the life span.
Term
reserve capacity
Definition
the amount of functional capacity that an organ has above and beyone what is needed to sustain life
Term
programmed cell death
Definition
the death of cells at specific predictable times
Term
longevity
Definition
the duration of an individuals life
Term
food insecurity
Definition
an inability to consistently acquire foods that are nutritionally adequate and individually, socially, and culturally acceptable
Term
macular degeneration
Definition
degeneration of a portion of the retina that results in a loss of visual detail and blindness
Term
cataracts
Definition
a disease of the eye that results in cloudy spots on the lens (and sometimes the corea), which obscure vision
Term
periodontal disease
Definition
a degeneration of the area surrounding the teeth, specifically the gum and supporting bone
Term
atrophic gastritis
Definition
an inflammation of the stomach lining that causes a reduction in stomach acid and allows bacterial overgrowth
Term
sarcopenia
Definition
progressive decrease in skeletal muscle mass and strength that occurs with age
Term
physical frailty
Definition
impairment in function and reduction in physiological reserves severe enough to cause limitations in the basic activities of daily living
Term
menopause
Definition
physiological changes that mark the end of a womens capacity to bear children
Term
dementia
Definition
a deterioration of mental state resuting in impared memory, thinking, and/or judgement
Term
Alzheimer's disease
Definition
a disease that results in the relentless and irreversible loss of mental function
Term
foodbourne illness
Definition
an illness caused by consumption of food containing a toxin or disease-causing microorganism
Term
pathogen
Definition
a biological agent that causes disease
Term
toxins
Definition
substances that can cause harm at some level of exposure
Term
cross-contamination
Definition
the transfer of contaminants from one food or object to another
Term
threshold effect
Definition
a reaction that occurs at a certain level of ingestion and increases as the dose increases. below that level there is no reaction.
Term
food code
Definition
a set of recommendations published by the FDA for the handling and service of food sold in restaurants and other establishments that serve food
Term
Harzard Analysis Critical Control Point (HACCP)
Definition
a food safety system that focuses on identifying and preventing hazards that could cause foodbourne illness.
Term
critical control points
Definition
possible points in food production, manufacturing, and transportation at which contamination could occur or be prevented.
Term
pasteurization
Definition
the process of heating food products to kill disease-causing organisms
Term
foodbourne infection
Definition
illness produced by the ingestion of food containing microorganisms that can multiply inside the body and cause injurious effets
Term
foodbourne intoxication
Definition
ilness caused by consuming a food containing a toxin
Term
spore
Definition
a dormant state of some bacteria that is resistant to heat but can germinate and produce a new organism when environmental conditions are favorable
Term
viruses
Definition
minute particles not visible under an ordinary microscope that depend on cells for their metabolic and reproductive needs
Term
mold
Definition
multicellular fungi that form a filamentous branching growth 
Term
parasites
Definition
organisms that live at the expense of others
Term
prion
Definition
a pathogenic protein that is the cause of degenerative brain diseases called spongiform encephalopathies
Term
bioaccumulation
Definition
the process by which compounds accumulate or build up in an organism faster than they can be broken down or excreted
Term
tolerances
Definition
the maximum amount of pesticide residues that may legally remain in food, set by the EPA
Term
genetic engineering
Definition
a set of techniques used to manipulate DNA for the purpose of changing the characteristics of an organism or creating a new product
Term
integrated pest management (IPM)
Definition
a method of agricultual pest control that integrates nonchemical and chemical techniques
Term
organic food
Definition
food that is produced, processed, and handled in accordance with the standards of the USDA National Organic Program
Term
polychlorinated biphenyls (PCB's)
Definition
carcinogenic industrial compounds that have found their way into the environment and, subsequently, the food supply. Repeated ingestion causes them to accumulate in biological tissues over time.
Term
fermentation
Definition
a process in which microorganisms metabolize components of a food and therefore change the composition, taste, and storage properties of the food.
Term
food additives
Definition
substances that can reasonably be expected to become a component of a food during processing. the foods that may contain them and the amounts that may be present are regulated by the FDA
Term
accidental contaminants
Definition
substances that unexpectedly enter the food supply. they are not regulated by the FDA
Term
aseptic processing
Definition
a method that places sterilized food in a sterilized package using a sterile process
Term
polycyclic aromatic hydrocarbons (PAHs)
Definition
a class of mutagenic substances produced during cooking when there is incomplete combustion of organic materials - such as when fat drips on a grill
Term
heterocyclic amines (HAs)
Definition
a class of mutagenic substances produced when there is incomplete combustion of amino acids during the cooking of meats - such as when meat is charred.
Term
irradiation
Definition
a process, also called cold pasteurication, that exposes foods to radiation to kill contaminating organisms and retard ripening and spoilage of fruits and vegetables
Term
modified atmosphere packaging (MAP)
Definition
a preservation technique used to prolong the shelf life of processed or fresh food by changing the gases surrounding the food in the package
Term
direct food additives
Definition
substances intentionally added to foods and regulated by FDA
Term
indirect food additives
Definition
substances that are expected to unintentionally enter foods during manufacturing or from packaging and are regulated by FDA
Term
preservatives
Definition
compounds that extend the shelf life of a product by retarding chemical, physical, or microbiological changes.
Term
standards of identity
Definition
regulations that define the allowable ingredients, composition, and other characteristics of foods
Term
prior-sanctioned substances
Definition
refers to substances that the FDA or the USDA had determined were safe for use in a specific food prior to the 1958 Food Additives Amendment
Term
generally recognized as safe (GRAS)
Definition
a group of chemical additives that are generally recognized as safe based on their long-standing presence in the food supply without obvious harmful effects
Term
Delaney Clause
Definition
a clause added to the 1958 Food Additives Amendment of the Pure Food and Drug Act that prohibits the intentional addition to foods of any compound that has been shown to induce cancer in animals or humans at any dose
Term
nutrition translation
Definition
a series of changes in diet, physical activity, health and nutrition that occurs as poor countries become more prosperous
Term
cycle of malnutrition
Definition
a cycle in which malnutrition is perpetuated by an inability to meet nutrient needs at all life stages
Term
infant mortality rate
Definition
the number of deaths during the first year of life per 1000 live births
Term
stunting
Definition
a decrease in linear growth rate, which is an indicator of the nutritional well-being in populations of children
Term
famine
Definition
a widespread lack of access to food due to a disaster that causes a collapse in the food production and marketing systems
Term
food insecurity
Definition
a situation in which people lack adequate physical, social, or economic access to sufficient, safe, nutritious food that meets their dietary needs and food preferences for an active and healthy life.
Term
renewable resources
Definition
resources that are restored and replaced by natural processes and that can therefore be used forever.
Term
food self-sufficiency
Definition
the ability of an area to produce enough food to feed its population
Term
subsistence crops
Definition
crops grown as food for the local population
Term
cash crops
Definition
crops grown to be sold for monetary return rather than to be used for food locally
Term
sustainable agriculture
Definition
agricultural methods that maintain soil productivity and a healthy ecological balance while having minimal long-term impacts
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