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497188
Weeks 6-11
Description
Undergraduate Degree BMSC1110 Mind Map on Weeks 6-11, created by 06watkinse on 21/01/2014.
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bmsc1110
bmsc1110
undergraduate degree
Mind Map by
06watkinse
, updated more than 1 year ago
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Created by
06watkinse
over 10 years ago
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Resource summary
Weeks 6-11
Week 6
Thorax Anatomy
skeletal components
thoracic vertebrae
ribs and their costal cartilages
sternum
muscular components
intercostal muscles
neurovascular components
intercostal nerves
intercostal arteries and veins
thoracic inlet - T1 vertebra, superior border of manubrium, medial border of the first rib its costal cartilage
thoracic outlet - inferior diaphragm surface
repiration muscles
diaphragm
intercostal muscles - external, internal, innermost
pleura
parietal - cervical, costal, media-stinal, diaphragmatic
visceral
lungs
right - sup, inf, mid
left - sup, inf
mediastinum - superior, inferior - middle, anterior
heart - endo, myo, epi - cardium
The Heart
Flow of Blood through the chamber of the heart and vessel names
order of excitation
ionic basis of APs in the SA node and ventricle
What the ECG represents
names/durations of ECG waves
what the ECG waves and intervals reflect
different phases of the cardiac cycle and how these relate to the ECG
CO = HR x SV
autonomic stimulation on HR and SV
regulation of SV
calculating MAP and regulation of arterial BP
CO = MAP/TPR
sympathetic stimuation on vessel diameter
active hyperaemia and control regional blood flow
location and role of arterial baroreceptors
Gas Exchange and Transport
O2 and CO2 diffuse down their concentration gradients
CO2 is about 20X more soluble than O2
O2 transported in the blood by haemaglobin
Unloading of O2 encouraged by low pH high temp, high 2,3,BPG and high CO2
CO2 transported in the blood as bicarb
Responses to Exercise
both central and peripheral mechanisms contribute to cardiovascular and respiratory responses during exercise
central command is responsible for the initial increase in heart rate
the muscle chemoreflex contributes to the slower, sympathetically-mediated rises in heart rate, stroke volume and peripheral vasoconstriction
endurance training results in alterations in cardiac structure/size, angiogenesis and increases mitochondria number and myoglobin concentration
these alterations increase stroke volume and VO2
Week 7
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