MEQ Specimin 1a Flashcards Preview

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Flashcards in MEQ Specimin 1a Deck (23)
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1

2 innate mechanisms that prevent micro-organisms from reaching the lungs

nasal hair, muco-ciliary escalator, mucus, coughing, sneezing, warming of inspired air by nose, humidification

2

BP using PVR and CO

BP = CO x PVR

3

which types of bv is major site for PVR?

arteriole

4

3 metabolic or physiologcal factors that reduce peripheral vascular resistance

- NO/metabolic breakdown -products
- hypoxia
- hypercapnia
- reduced sympathetic stimulation
parasympathetic stimulation

5

2 anatomical sites where arterial baroreceptors are located

aortic arch, carotid sinus

6

2 effects that stimulating arterial baroreceptors has on systemic BP

decreased sympathetic NS stimulation, decreased arteriolar vasoconstriction, decreased BP

7

normal systolic and diastolic BP for adult male age 30?

120/80.
range of (100/70 to 144/94)

8

normal oesophagus lined by what type of epithelium?

stratified squamous non-keratinising

9

3 structures that lie anterior to oesophagus in the thorax

left main bronchus
aortic arch
left atrium
diaphragm

10

what hormone is responsible for the production of gastric juice and which 2 organs secrete it?

gastrin
stomach and pancreas

11

which artery supplies the terminal ileum and ascending colon?

superior mesenteric artery

12

how is 5 year survival rate determined?

proportion of diagnosed patients still living 5 years after diagnosis of the disease

13

how much absolute alcohol is there in a unit of alcohol?

8 grams of absolute alcohol. half a pint of beer, 1 small glass of wine, 1 glass of sherry

14

5 ways stress can manifest itself. list them as well as how pt would be effected

PC BEB

biochemical - endorphin levels altered/cortisol
emotional - mood swing, tearful
behavioural - alcohol, poor sleep
physiological - headache
cognitive - negative thoughts, poor concentration

15

what pattern of mendelian inheritance does the abnormal CF gene show?

autosomal recessive

16

3 functions of the cell membrane of bronchial epithelial cells

serparating intracellular contents from ex
regulating access to the cell
acting as semi-permeable membrane
regulating molecular trans in and out
intercellular signalling/hosting membrane receptors
maintaining cell shape
allowing movement of the cell

17

lipids within the cell membrane are amphipathic, what does this mean?

substances are both hydrophobic and hydrophilic

18

fusion of vacuoles with cell membrane, and subsequent release of their contents is called what?

exocytosis

19

3 key surface markings of the oblique fissure?

back: T2.
MAL: 4th rib
ant:end of 6th rib

20

why do small changes i nthe diameter of a blood vessel have a very great effect on the resistance to flow of a fluid through that vessel?

Pouiselle's law or a derivative of it

21

what part of the heart are you feeling when palpating the apex beat?

left ventricle

22

2 key stages of fat digestion in the gut

emulsification
triglyceride hydrolysis

23

main function of bile micelles in fat absorption from the gut?

lipid transport system