respiratory, endocrine system Flashcards

1
Q

what is the goal of a negative feedback loop?

A

to return back to a set point

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2
Q

what is the goal of a positive feedback loop?

A

to reach a specific target

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3
Q

what does crine mean?

A

secrete

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4
Q

what types of hormones are there?

A

steroid (fat soluble)

non-steroid (water soluble)

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5
Q

what is a hormone?

A

a chemical messenger that stimulates or inhibits a cell

it is secreted into the blood and maintains homeostasis

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6
Q

the cell a hormone affects is called

A

a target cell

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7
Q

how does a hormone cause an effect?

A

enters a cell to bind to a receptor, once is binds it can cause an effect to either increase or decrease a function

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8
Q

what organs work together to regulate the level of glucose in the blood

A

pancreas - make enzymes to help break down food

liver - stores energy

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9
Q

does the liver produce hormones?

A

NOOO

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10
Q

what do BETA cells secrete

A

insulin

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11
Q

what do ALPHA cells secrete

A

glucagon

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12
Q

when is insulin typically released?

A

after a meal

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13
Q

what happens to insulin once it is secreted?

A

if it binds to a target cell, it degrades

the leftover gets destroyed by the kidney and liver

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14
Q

which 2 cellular adaptations are at work in the tissue for the body to accommodate increased lipids

A

hyperplasia- cells multiplying

hypertrophy- cells getting bigger

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15
Q

what are the two types of adipose tissue?

A

subcutaneous fat- under skin, all over the body

visceral - torso and abdominal fat stored around organs

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16
Q

what are 3 ways to measure a personal visceral fat

A

measure BMI
waist circumference
waist to hip ratio

17
Q

what effects can increased visceral fat have on the body

A

the more fat, the more adipokines which can cause insulin resistance

18
Q

what does insulin resistant mean ** loook up

A

the receptors on target cells do not respond as readily to insulin

19
Q

what are 2 tests that can be done to see if a person has hyperglycemia

A

Fasting plasma glucose- no eating for 8 hrs, then blood test

2 hour plasma glucose- drink sugary drink. get blood drawn, wait an hour, get more blood drawn

20
Q

what is metabolic syndrome

A

when a certain group of symptoms are found together that indicate the person is at higher risk for cardiovascular disease or Type 2 diabetes

21
Q

is Type A influenza the most severe and most common true or false

A

true

22
Q

what are the diagnostics for metabolic syndrome (need to have at least 3)

A
elevated waist circumference
elevated fasting blood glucose
elevated blood pressure
elevated triglycerides 
reduced HGL
23
Q

what is acute bronchitis

A

inflammation of the tracheobronchial tree or large bronchi

24
Q

what is asthma?

A

chronic disorder that results in intermittent, reversible airway obstruction

25
Q

what is asthma characterized by

A
airway inflammation
bronchoconstriction
bronchospasms 
bronciole edema
mucus production
26
Q

what is stage 1 asthma

A

related to bronchiole spasms
signaled by coughing
15-30 mins

27
Q

stage 2 asthma?

A

peaks within 6 hrs of onset

result of airway edema and mucus production

28
Q

what is status asthmaticus

A

life threatening

prolonged asthma attack that doesnt respond to treatment

29
Q

tx for asthma?

A
corticosteroids 
bronchodilators 
beta agonists
keep enviro clean
maintain healthy immune system
filter air
30
Q

what does COPD include

A

chronic bronchitis

emphysema

31
Q

what is COPD

A

debilitating chronic disorder

irreversible tissue degeneration & airway obstruction

32
Q

what are the causes of COPD

A

smoking
pollution
chemical irritants
genetic mutation

33
Q

ASTHMA & COPD HAVE SIMILAR SYMPTOMS:

A

coughing, wheezing, sputum production

34
Q

what usually triggers asthma

A

exercise
cold air
allergens

35
Q

what usually triggers COPD

A

pneumonia

environmental pollutants