week 5 Flashcards
OBESITY
What is adipose tissue?
Fatty tissue
Angiotensin is linked to what?
Vasoconstriction
What is vasoconstriction?
Narrowing of blood vessels, which reduces blood flow and increases blood pressure
What does leptin play a role in?
inflammation
What is VEGF (Vascular endothelial Growth factor): involved in?
Angiogenesis(the formation of new blood vessels)
Where does adipose tissue accumulate?
Organs and Skeletal muscle
How does Adipose tissue accumulate in various regions of the body?
accumulates in various regions of the body, leading to different body shapes.
what is considered the largest endocrine system in the body
adipose tissue is actually considered the largest endocrine organ in our body
What is the main purpose of adipose tissue
energy storage
What is another name for adipose tissue
adipocyte
What substances are released by adipocytes?
Angiotensin, leptin, and VEGF (vascular endothelial growth factor).
What is the role of angiotensin in the body?
It causes vasoconstriction and contributes to cardiovascular conditions related to obesity.
What is the function of leptin in the body?
Leptin can lead to inflammation.
Why do obese individuals tend to have high levels of chronic inflammation?
Due to the release of leptin from adipose tissue.
Why is angiogenesis necessary as bodies get larger due to obesity?
To provide blood supply as the body enlarges.
What happens when fat cells cannot store more calories?
Ectopic fat accumulates in other areas, such as around organs or in skeletal muscle.
What is ectopic fat?
Fat that accumulates in areas outside of normal fat storage locations, such as in organs or muscles.
What can ectopic fat accumulation in skeletal muscle cause?
Muscle cell death and a decrease in lean body mass.
Where can adipose tissue accumulate in the body?
All over the body, with few exceptions.
What does an apple-shaped body indicate in terms of fat accumulation?
Fat is accumulated around the midsection, indicating central obesity.
What is central obesity?
A condition where excess fat is stored primarily around the abdomen and torso.
What risk is associated with fat accumulating around visceral organs?
Increased risk for cardiovascular disease.
What are visceral organs?
Internal organs located within the body’s cavities, such as the heart, liver, and intestines.
When pertaining to thermo regulation what does help with
Brown fats help with regulating body temperatures by producing heat
How can you describe brown fat from infancy to adulthood
Brown fat is more abundant in infants and decreases as we age.
Think chunky baby
Brown fat is also more so found in extremities over torso and abdomen.
How can you describe white fat?
As a long term energy resevoir: it stores energy in form of fat for later use.
It is more harmful than brown fat
Is white fat long or or short term reservoir
It is a long term reservoir meaning it stores energy in the form of fat for later use
What diseases is white fat involved in?
cardiovascular(CV) and metabolic diseases: This includes heart disease and diabetes
What kind of responses to the body can white fat cause?
Inflammation and immune system responses
Why can the human body store an almost unlimited amount of fat?
Because adipose tissue can continue to accumulate and expand in multiple directions, and the skin is flexible and can stretch to accommodate it.
What does obesity involve
excessive accumulation of adipose tissue, which contributes to many diseases.
What are the multifactorial causes of obesity
Environment: Described as a “socially contagious feature of globalization”
Behavior: Lifestyle choices and habits play a significant role
Epigenetics: Genetic factors and how they interact with the environment
Health impact of obesity
obesity is the 2nd leading contributor to preventable death in the united states.
the 1st being smoking.
the prevalence
65% of U.S. adults and 40% of U.S. children are overweight or obese.
What is Bariatrics
The branch of medicine that deals with obesity management, focusing on treatments and interventions for weight loss and health improvement.
In BMI what is considered overweight
BMI ≥ 25kg/m2
In BMI obesity is is defined as what?
Defined as a BMI ≥ 30 kg/m²
Waist Circumference: This measurement helps assess?
abdominal fat.
What is Waist-to-Hip Ratio (WHR):
A ratio that compares the circumference of the waist to the hips, used as a measure of fat distribution.
In children how is BMI diagnosed?
by comparing BMI to reference population percentiles.
What is the most commonly used tool to measure obesity?
BMI (Body Mass Index).
What is the BMI range for the “Overweight” classification?
25.0-29.9 kg/m²
What is the classification for a BMI of 30.0-34.9 kg/m²?
Class I Obesity
What is another term for Class I Obesity?
Obese
What is the BMI range for Class II Obesity?
35.0-39.9 kg/m²
What is another term for Class II Obesity?
Severely Obese
What classification is given for a BMI of 40.0 kg/m² or higher?
Class III Obesity
What is another term for Class III Obesity?
Morbidly Obese
What is the BMI threshold for being classified as “Super Obese” or “Super Morbidly Obese”?
50.0 kg/m² or higher
What are some issues with BMI as a tool for measuring obesity?
It may classify fit, muscular individuals as obese, even if they have little adipose tissue.
Why is BMI still commonly used despite its problems?
It is simple, quick, and the most clinically reported measure.
What are some ethnic differences in waist circumference risk?
Women of Asian descent may be at elevated risk at a smaller waist circumference than white or black women.
At what percentile is a child considered overweight?
At the 85th percentile or greater.
At what percentile is a child considered obese?
At or above the 95th percentile.
What do plus sized people look like
apple shaped
What is an apple-shaped body associated with?
Central obesity and increased health risks.
What conditions might cause a firm abdomen in an apple-shaped individual?
Cardiac disease, liver disease, or just the person’s natural shape.
How does central obesity affect mobility in an apple-shaped person?
It throws off their center of gravity and may limit their tolerance for supine or prone positions.
What is a Panis?
An overhang of subcutaneous fat tissue.
What can sometimes be present in a Panis besides skin and fat?
Bowel contents from a hernia.
Why is the Panis prone to infection?
Because the areas under it can easily become infected due to trapped moisture and friction.
What is an infection of the Panis called?
Panniculitis.
What is a surgical procedure to remove the Panis called?
Panniculectomy.