RESPIRATORY SYSTEM Flashcards
Main function of Respiratory system
VENTILATION - the movement of air in and out of lungs
DIFFUSION- the movement of gases without use of energy/effort by body between gas and blood in lung capillaries
PERFUSION - is the process by which CVS pumps blood through lungs
COPD SHORT FOR?
Chronic obstructive pulmonary disease
What is COPD
Characterised by chronic and recurrent obstruction of airflow in the pulmonary airways. [restricted air flow and breathing problems] Emohysema - loss of lung elasticity and abnormal enlargement of airspace’s with destruction of the alveolar walls and capillary beds. COPD is not reversible
Signs and symptoms of COPD
- Insidious onset [a condition or disease that develops gradually without noticeable symptoms in early stages
- fatigue
-Dyspnoea[difficult breathing or shortness of breath]
-productive cough
-barrel chest
Details with COPD
Bronchioles lose their shape and become clogged with mucus
WHAT IS ATHMA
Is a chronic inflammatory disease of the airways resulting in airway hyper responsiveness, mucosal oedema and mucous production. This inflammatory response leads to narrowing and increased mucous production within the airways.
- a chronic lung disease that causes inflammation and muscle tightening in the airways
Cause of asthma
-combination of genetic and environmental factors
-allergens, dust mite, fur
-air pollution
-workplace chemicals
Prevention of Asthma
-Fast acting bronchodilators e.g Salbutamol and terbutaline
-effective ventilation
-o2
-remove causative argent
What is CVS?
A term used to describe various conditions that affect the structure and function of the heart and blood vessels
Types of CVD?
-Coronary artery disease
-Heart failure
-Cerebrovascular disease
-peripheral disease
ATHERO
Gruel
SCELEOSIS
Hardness
ARTERIO
Artery
Arteriosclerosis
Which the arteries narrow and harden leading to poor circulation of blood throughout the body
Stenosis
Narrowing
Stenosis
Narrowing
Atherosclerosis
Plaque builds up in the walls of arteries
Thrombus
Blood clot that forms in a blood vessel
Embolus
Anything that moves through a blood vessel (often a small piece of blood clot)
Occlusion
Blockage or closing of a blood vessel
Ischemia
Reduced blood flow to an area or blockage
Stable angina
Is a predictable chest pain that occurs during physical activity or mental stress
Unstable angina
More serious and unpredictable type of chest pain that can occur at rest