Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
39 Cards in this Set
- Front
- Back
|
What is the conduction system |
Group of specalised cardiac muscle cells in the wall of the heart that send signals to the heart muscle causing it to contract. Main componants are SA node, AV node bundle of his bundle branches and purkinje fibres. |
|
|
What are the three layers of the skin |
Epidermis Dermis Subcutaneous |
|
|
What are the three burn categories |
Epidermal (severe sunburn) Dermal (blistering) Full thickness (white and charring) |
|
|
What is Mean Arterial Pressure (MAP) |
Average bp during a single cardiac cycle |
|
|
Formula for MAP |
Systolic + diastolic /2 |
|
|
Difference between endocrine and exocrine gland |
Endocrine gland has no duct excreat hormones into blood. Exocrine gland has duct excreats out of body |
|
|
Enzyme that motabolises acetylcholine |
AcetylcholineEsterase |
|
|
Define polyuria |
Increased urination |
|
|
Define polyphagia |
Increased appetite |
|
|
Define polydypsea |
Increased thirst |
|
|
Baroreceptor function and location |
Detect pressure in the blood Located in aortic arch and carotid bodies |
|
|
Chemoreceptors function and loc |
Detect chemicals in the blood (ph increased co2 low o2) Loc aortic arch and carotid bodies |
|
|
List two types of shock |
Cardiogenic Hypovolaemic (absolute and relative) |
|
|
Short and long term mech of bp control |
Short term : sns vasoconstriction Long term: raas release of hormones |
|
|
List the 3 fluid compartments |
Intracellular fluid Extracellular fluid Interstitual space |
|
|
What is oedema |
Fluid build up in the interstitual space |
|
|
What chemical causes bronchoconstriction in asthma |
Lukotriene- chemical inflamm mediator causing constriction and increased mucus production |
|
|
What age group is most at risk for illness due to immune system |
0-4 |
|
|
What is anaphylaxis |
Immune mediated reaction to exposure to a trigger. Adaptive not localised and fast progressing broken into innate and localised categories. Death occurres by hypoxia from upper airway asphyxia / severe bronchospasm or profound shock from vasodilation |
|
|
Insulin function. Where is insulin released- what cell from-name of function when releases |
Pancreas beta cells decreases bgl Process called glycogensis |
|
|
Glucagon function Released from Function name |
Converts liver glycogen to glucose to increase bgl Released from alpha cells of pancreas Glycogenolysis |
|
|
What is wernicks encepalopathy |
Acute neuro condition. Secondary to thiamine deficiency |
|
|
What is the buffering system |
Controls ph of blood increased co2 = increased H+ (hydrogen ions/ acid) =acidocis |
|
|
Steps of coagulation (blood clot) Instrinsic(blood) extrimsic (tissue) |
1. Prothrombinase 2. Prothrombin to thrombin 3. Fibrinogen- fibrin |
|
|
Afferent and efferent |
Afferent from stimuli to CNS sensory response Efferent from cns to the effector organ motor response |
|
|
Receptors of SNS |
Alpha and beta |
|
|
Receptors of PNS |
Muscarinic and nicotinic |
|
|
Cardiac tamponard |
Fluid in the pericardium placing pressure on heart minimal room to contract |
|
|
Stroke volume |
Amount of blood ejected from LV in one contraction |
|
|
Cardiac output |
About of blood pumped out per minute hr×sv |
|
|
Afterload |
Ventricle contraction to eject blood |
|
|
Preload |
Ventricle stretch pressure before a contraction |
|
|
Pain pathway |
Transduction Transmission Modulation Perception Interpritation Behaviour |
|
|
Tidal volume |
500ml amount of air inspired and exspired during normal insp exspiratory |
|
|
Inspiratory reserve |
3100ml The amount of air that can be inspired forcefully after normal tidal volume |
|
|
Expiratory reserve |
1200ml air that can be forcefully inspired after expiration of normal tidal volume |
|
|
Residual volume |
1200ml air remaining in lung after most compete expiration possible |
|
|
Why is paed hypovolemia more comcerning |
Low bp |
|
|
What is partial pressure |
Individual pressure of gas |
