respiratory system

Question 1

what is pulmonary ventilation

Answer 1

movement of air in and out of lungs

Question 2

external respiration

Answer 2

oxygen and co2 exchange between lungs and blood

Question 3

transport

Answer 3

oxygen and carbon dioxide in blood

Question 4

internal respiration

Answer 4

oxygen and carbon dioxide exchange between systemic blood vessels and tissuesrd

Question 5

order of respiratory tree

Answer 5

trachea, right and left main primary bronchi, lobar secondary bronchi, segmental tertiary bronchi, bronchioles, terminal bronchioles

Question 6

what are bronchioles

Answer 6

smallest airway in your lungs

Question 7

what is different about bronchioles from bronchi

Answer 7

bronchioles dont have cartilage but they have more smooth muscle

Question 8

what does that mean for bronchioles

Answer 8

they are more sensitive to vasoconstriction/dilation

Question 9

what do the walls of bronchioles contain

Answer 9

cilia and club cells

Question 10

what are cilia

Answer 10

tiny finger-like structures that work to move debris and germs out of airways. the number of cilia decreases as bronchioles gets smaller

Question 11

what are club cells

Answer 11

they secrete surfactant to reduce surface tension and enzymes that break down debris and irritants what is airway resistance

Question 12

what is airway resistance

Answer 12

obstruction to air flow

Question 12

what causes airway resistance

Answer 12

friction and diameters of conducting tubes

Question 13

what is bronchospasm

Answer 13

abnormal contraction of smooth muscle tissue in the airways of the lungs that results in narrowing and difficulty breathing

Question 14

what are bronchodilators

Answer 14

they stimulate beta two receptors in the muscles that line the airways and causes them to relax and dilate

Question 15

what is bronchiloe inflammation

Answer 15

nonspecific protective reaction to tissue injury which includes increased blood flow, vascular permeability, and infiltration of cells and can occur in the bronchioles of the lungsw

Question 16

what are the four things that cause airway inflammation

Answer 16

respiratory irritants, pulmonary diseases, lung infections, and trauma

Question 17

describe bronchial mucous

Answer 17

traps irritants in your airways and helps the body expel them through coughing. However, mucus that collects in the airways can make breathing more difficult and increases risk of infection

Question 18

impact of smoking and vaping on respiratory structures and functions

Answer 18

think ab it