Shared Flashcard Set

Details

Nutrition and Health
University of Iowa Nutrition and Health Final
124
Health Care
Undergraduate 2
12/05/2012

Additional Health Care Flashcards

 


 

Cards

Term
Overweight
Definition
body weight above a healthy weight; BMI 25-29.9
Term
Underweight
Definition
body weight below a healthy weight; BMI below 18.5
Term
Adipose tissue
Definition
the body's fat tissue. adipose tissue synthesizes and secretes the hormone leptin (involved in appetite regulation)
Term
Body Composition
Definition
the proportions of muscle, bone, fat, and other tissue that make up a person's total body weight
Term
Obesity 
Definition
Overfatness with adverse health effects, as determined by reliable measures and interpreted with good medical judgement. Obesity is officially defined as a BMI of 30 or higher.
Term
Wasting
Definition
the progressive, relentless loss of the body's tissues that accompanies certain diseases and shortens survival time
Term
Visceral Fat
Definition
fat stored within the abdominal cavity in association with the internal abdominal organs; also called intra-abdominal fat
Term
Central Obesity
Definition
Excess fat in the abdomen and around the trunk
Term
Subcutaneous fat
Definition
fat stored directly under the skin
Term
Adipokines
Definition

-protein hormones made and released by adipose tissue (fat) cells

-regulate inflammatory processes and energy metabolism in the tissues

Term
Body Mass Index (BMI)
Definition
an indicator of obesity or underweight, calculated by dividing weight by the square of the person's height
Term
Obesity elevates the risk of these major conditions:
Definition

Hypertension

Heart Disease

Stroke

Diabetes

Certain cancers

Term
Factors affecting body fat distribution:
Definition

Gender

Menopause in women

Smoking

Alcohol intake

Physical intake

Term
Three indicators used to evaluate risks from obesity:
Definition

Body mass index

Waist circumference

Disease risk profile and family medical history

Term
Basal Metabolism
Definition
the sum total of all the involuntary activities that are necessary to sustain life, including circulation, respiration, temperature maintenance, hormone secretion, nerve activity, and new tissue synthesis, but excluding digestion and voluntary activities. Basal metabolism is the largest component of the average person's daily energy expenditure.
Term
voluntary activites
Definition
intentional activities (such as walking, sitting, or running) conducted by voluntary muscles
Term
thermic effect of food (TEF)
Definition
the body's speeded up metabolism in response to having eaten a meal; also called diet-induced thermogenesis
Term
Basal Metabolic Rate (BMR)
Definition
the rate at which the body uses energy to support its basal metabolism
Term
Estimated Energy Requirement (EER)
Definition
the DRI recommendation for energy intake, accounting for age, gender, weight, height, and physical activity
Term
To estimate basal energy output:
Definition
  • Men: kg body weight x 24 = calories/day
  • Women: kg body weight x 23 = calories/day

(to convert pounds to kilograms, divide pounds by 2.2)

Term
Skinfold test
Definition
measurement of the thickness of a fold of skin on the back of the arm, below the shoulder blade, or in other places using a caliper
Term
Underwater weighing
Definition
A measure of density and volume used to determine body fat content
Term
Bioelectrical Impedance
Definition
A technique for measuring body fatness by measuring the body's electrical conductivity
Term
Hunger
Definition
the physiological need to eat, experienced as a drive for obtaining food; an unpleasant sensation that demands relief
Term
Satiation
Definition
the perception of fullness that builds throughout a meal, eventually reaching the degree of fullness and satisfaction that halts eating. Satiation generally determines how much food is consumed in one sitting
Term
Satiety
Definition
the perception of fullness that lingers in the hours after a meal and inhibits eating until the next mealtime. Satiety generally determines the length of time between meals
Term
Ghrelin 
Definition
a hormone released by the stomach that signals the hypothalamus of the brain to stimulate eating
Term
Appetite
Definition
the physiological desire to eat; a learned motivation and a positive sensation that accompanies the sight, smell, or thought or appealing foods
Term
Endorphins
Definition
brain compounds that reduce pain and produce pleasure in ways similar to opiate drugs. in appetite control, endorphins are released on seeing, smelling, or tasting delicious food and may enhance the drive to eat or continue eating
Term
Leptin
Definition
an appetite-suppressing hormone produced in the fat cells that conveys information about body fatness to the brain; believed to be involved in the maintenance of body composition
Term
Thermogenesis
Definition
the generation and release of body heat associated with the breakdown of body fuels. adaptive thermogenesis describes adjustments in energy expenditure related to changes in environment such as cold and to physiological events such as underfeeding or trauma
Term
Brown Adipose Tissue (BAT)
Definition
a type of adipose tissue abundant in hibernating animals and human infants and recently identified in human adults. Abundant pigmented enzymes of energy metabolism give BAT a dark color under a microscope; the enzymes release heat from fuels without accomplishing other work. Also called brown fat.
Term
Nonexercise activity thermogenesis (NEAT)
Definition
Energy expenditure associated with everyday spontaneous activities, as opposed to consciously undertaken physical activities.
Term
Built environment
Definition
the buildings, roads, utilities, homes, fixtures, parks, and all other man-made entities that form the physical characteristics of a community
Term
Food deserts
Definition
urban and rural low-income areas with limited access to affordable and nutritious foods
Term
Ketone bodies
Definition
acidic compounds derived from fat and certain amino acids. normally rare in the blood, they help to feed the brain during times when too little carbohydrate is available
Term
Energy Density
Definition
a measure of the energy provided by a food relative to its weight (calories per gram)
Term
Night eating syndrome
Definition
 a disturbance in the daily eating rhythm associated with obesity, characterized by no breakfast, more than half of the daily calories consumed after 7pm, frequent nighttime awakenings to eat, and often a greater total calorie intake than others
Term
Extreme obesity
Definition
Clinically severe overweight, presenting very high risks to health; the condition of having a BMI of 40 or above; also called morbid obesity
Term
Botanical
Definition
Pertaining or made from plants; any drug, medicinal preparation, dietary supplement, or similar substance obtained from a plant
Term
Cellulite
Definition
a term properly used to describe dimpled fat tissue on the thighs and buttocks
Term
Self-efficiacy
Definition
a person's belief in his or her ability to succeed in an undertaking
Term
Lapses
Definition
periods of returning to old habits
Term
Weight cycling
Definition
Repeated rounds of weight loss and subsequent regain, with reduced ability to lose weight with each attempt; also called yo-yo dieting
Term
Behavior modification
Definition
Alteration of behavior using methods based on the theory that actions can be controlled by manipulating the environment factors that cue, or trigger, the actions
Term
Cognitive skills
Definition
As taught in behavior therapy, changes to conscious thoughts with the goal of improving adherence to lifestyle modifications; examples are problem-solving skills or the correction of false
Term
Infectious Diseases
Definition
Diseases that are caused by bacteria, viruses, parasites, and other microbes and can be transmitted from one person to another through air, water, or food; by contact;or through vector organisms such as mosquitos and fleas
Term
Chronic Diseases
Definition
Diseases characterized by slow progression, long duration, and degeneration of body organs due in part to such personal lifestyle elements as poor food choices, smoking, alcohol use, and lack of physical activity. Also called lifestyle diseases, degenerative diseases, or the diseases of old age.
Term
AIDS
Definition
Acquired immune deficiency syndrome; caused by infection with human immunodeficiency virus (HIV), which is transmitted primarily by sexual contact, contact with infected blood, needles shared among drug users, or fluids transferred form an infected mother to her fetus or infant.
Term
Risk factors
Definition
factors known to be related to diseases but not proved to be causal 
Term
CVD - Cardiovascular disease
Definition
A general term used for all diseases of the heart and blood vessels. Atherosclerosis is the main cause of CVD. When the arteries that carry blood to the heart muscle become blocked, the heart suffers damage known as coronary heart disease (CHD)
Term
Atherosclerosis
Definition
The most common form of cardiovascular disease; characterized by plaques along the inner walls of the arteries. 
Term
Plaques
Definition
mounds of lipid material mixed with smooth muscle cells and calcium that develop in the artery walls in atherosclerosis
Term
Inflammation
Definition
Part of the body's immune defense against injury, infection, or allergens,marked by increased blood flow, release of chemical toxins, and attraction of white blood cells to the affected area
Term
Macrophages
Definition
large scavenger cells of the immune system that engulf debris and remove it
Term
Platelets
Definition
tiny cell-like fragments in the blood, important in blood clot formation
Term
Thrombus
Definition
a stationary blood clot
Term
Thrombosis
Definition
a thrombus that has grown enough to close a blood vessel. a coronary thrombosis closes off a vessel that feeds the heart muscle. a cerebral thrombosis closes off a vessel that feeds the brain.
Term
Embolus
Definition
a thrombus that breaks loose and travels through the blood vessels
Term
embolism
Definition
an embolus that causes sudden closure of a blood vessel
Term
heart attack
Definition
the event in which the vessels that feed the heart muscle become closed off by an embolism, thrombus, or other cause with resulting sudden tissue death. a heart attack is also called a myocardial infarction
Term
Stroke
Definition
the sudden shutting off of the blood flow to the brain by a thrombus, embolism, or the bursting of a vessel
Term
Aneurysm
Definition
the ballooning out of an artery wall at a point that is weakened by deterioration
Term
aorta
Definition
the large, primary artery that conducts blood from the heart to the body's smaller arteries
Term
Metabolic syndrome
Definition
a combination of characteristic factors - high fasting blood glucose or insulin resistance, central obesity, hypertension, low blood HDL cholesterol, and elevated blood triglycerides - that greatly increase a person's risk for CVD. Also called syndrome X or insulin resistance syndrome.
Term
Systolic
Definition
reflects arterial pressure caused by the contraction of the heart's left venticle
Term
Diastolic
Definition
reflects the arterial pressure when the heart is between beats
Term
Prehypertension
Definition
borderline blood pressure between 120 over 80 and 139 over 89, an indication that hypertension is likely to develop in the future
Term
Cardiac Output
Definition
the volume of blood discharged by the heart each minute
Term
Peripheral resistance
Definition
the resistance to pumped blood in the small arterial branches that carry blood to tissues
Term
Carcinogen
Definition
a cancer-causing substance
Term
Initiation
Definition
An event, probably occurring in a cell's genetic material, caused by radiation or by a chemical carcinogen that can give rise to cancer
Term
Carcinogenesis
Definition
The origin or beginning of cancer
Term
Promoters
Definition
Factors that do not initiate cancer but speed up its development once initiation has taken place
Term
Metastasis
Definition
Movement of cancer cells from one body part to another, usually by way of the body fluids
Term
Caloric effect
Definition
the drop in cancer incidence seen whenever intake of food energy (calories) is restricted
Term
Anticarcinogens
Definition
Compounds in foods that act in any of several ways to oppose the formation of cancer
Term
Cruciferous Vegetables
Definition
Vegetables with cross-shaped blossoms - the cabbage family. their intake is associated with low cancer rates in human populations. Examples are broccoli, brussels sprouts, cabbage, cauliflower, rutabagas, and turnips
Term
Fetus
Definition
the stage of human gestation from eight weeks after conception until the birth of an infant
Term
Embryo
Definition
the stage of human gestation from the third to the eighth week after conception
Term
Fertility
Definition
the capacity of a woman to produce a normal ovum periodically and of a man to produce normal sperm; the ability to reproduce
Term
low birthweight
Definition
a birthweight of less than 5.5 lbs; used as a predictor of probably health problems in the newborn and as a probable indicator or poor nutrition status of the mother before and/or during pregnancy.
Term
Uterus
Definition
The womb, the muscular organ within which the infant develops before birth
Term
Placenta
Definition
the organ of pregnancy in which maternal and fetal blood circulate in close proximity and exchange nutrients and oxygen and wastes
Term
Gestation
Definition
the period of about 40 weeks (three trimesters) from conception to birth; the term of a pregnancy
Term
Umbilical cord
Definition
the rope-like structure through which the fetus's veins and arteries reach the placenta; the route of nourishment and oxygen into the fetus and the route of waste disposal from the fetus
Term
Amniotic sac
Definition
the "bag of waters" in the uterus to which the fetus floats 
Term
Lactation
Definition
Production and secretion of breast milk for the purpose of nourishing an infant
Term
Ovum
Definition
the egg, produced by the mother, that unites with a sperm from the father to produce a new individual
Term
Zygote
Definition
the product of the union of ovum and sperm; a fertilized ovum
Term
Implantation
Definition
the stage of development, during the first two weeks after conception, in which the fertilized egg embeds itself in the wall of the uterus and begins to develop
Term
Trimester
Definition
a period representing gestation. a trimester is about 13 to 14 weeks
Term
Critical period
Definition
a finite period during development in which certain events may occur that will have irreversible effects on later developmental stages. A critical period is usually a period of cell division in a body organ.
Term
High-risk pregnancy
Definition
a pregnancy characterized by risk factors that make it likely the birth will be surrounded by problems such as premature delivery, difficult birth, retarded growth, birth defects, and early infant death.
Term
Neural tube
Definition
the embryonic tissue that later forms the brain and spinal cord
Term
Neural tube defects
Definition
a group of nervous system abnormalities caused by interruption of the normal early development of the neural tube.
Term
Anencephaly
Definition
an uncommon and always fatal neural tube defect in which the brain fails to form
Term
Spina bifida
Definition
one of the most common types of neural tube defects in which gaps occur in the bones of the spine. often the spinal cord bulges and protrudes through the gaps, resulting in a number of motor and other impairments
Term
Environmental Tobacco Smoke
Definition
the combination of exhaled smoke and smoke from lighted cigarettes, pipes, or cigars that enters the air and may be inhaled by other people
Term
Listeriosis
Definition
a serious foodborne infection that can cause severe brain infection or death in a fetus or newborn; caused by bacteria found in water and soil
Term
Fetal Alcohol spectrum disorders
Definition
a spectrum of physical, behavioral, and cognitive disabilities caused by prenatal alcohol exposure
Term
Fetal Alcohol Syndrome
Definition
the cluster of symptoms including brain damage, growth retardation, mental retardation, and abnormal facial abnormalities seen in an infant or child whose mother consumed alcohol during pregnancy
Term
Alcohol-related neurodevelopmental disorder
Definition
behavioral, cognitive, or central nervous system abnormalities associated with prenatal alcohol exposure
Term
Alcohol related birth defects
Definition
malformations in the skeletal and organ systems associated with prenatal alcohol exposure
Term
Gestational diabetes
Definition
abnormal glucose tolerance appearing during pregnancy
Term
Chronic hypertension
Definition
in pregnant women, hypertension that is present and documented before pregnancy; in women whose prepregnancy blood pressure is unknown, the presence of sustained hypertension before 20 weeks of gestation
Term
Gestational hypertension
Definition
high blood pressure that develops in the second half of pregnancy and usually resolves after childbirth
Term
Preeclampsia
Definition
a potentially dangerous condition during pregnancy characterized by edema, hypertension, and protein the urine
Term
Certified lactation consultant
Definition
Health-care provider, often a registered nurse or a registered dietitian, with specialized training and certification in breast and infant anatomy and physiology who teaches the mechanics of breastfeeding to new mothers
Term
Alpha-lactatbumin
Definition
the chief protein in human breast milk
Term
Lactoferrin
Definition
a factor in breast milk that binds iron and keeps it from supporting the growth of the infants intestinal bacteria
Term
Colostrum
Definition
a milklike secretion from the breasts during the first day or so after delivery before milk appears; rich in protective factors
Term
Wean
Definition
to gradually replace breast milk with infant formula or other foods appropriate to an infants diet
Term
milk anemia
Definition
iron-deficiency anemia caused by drinking so much milk that iron-rich foods are displaced from the diet
Term
Food neophobia
Definition
the fear of trying new foods, common among toddlers
Term
Allergy
Definition
an immune reaction to a foreign substance, such as a component of food. Also called hypersensitivity by researchers
Term
Antibodies
Definition
large protein molecules that are produced in response to the presence of antigens to inactivate them
Term
Histamine
Definition
a substance that participates in causing inflammation; produced by cells of the immune system as part of a local immune reaction to an offending substance
Term
Epinephrine
Definition
a hormone of the adrenal gland that counteracts anaphylactic shock by opening the airways and maintaining heartbeat and blood pressure
Term
Competitive foods
Definition
unregulated meals, including fast foods, that compete side by side with USDA-regulated school lunches
Term
Adolescence
Definition
the period from the beginning of puberty until maturity 
Term
Growth Spurt
Definition
the marked rapid gain in physical size usually evident around the onset of adolescence
Term
Epiphyseal plate
Definition
a think, cartilage-like layer that forms new cells that are eventually calcified, lengthening the bone
Supporting users have an ad free experience!