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9 Cards in this Set
- Front
- Back
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What is the pulse and where are the pulse points? |
The rhythmic expansion and contraction or the arteries as blood is forced through them by the heart.
*Pulse points* Carotid Radial Femoral Temportal |
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What characteristics are recorded when assessing pulse? |
Rate
Rhythm
Amplitude |
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Which features of the cardiovascular system are responsible for these characteristics? |
Ventricular contractions Strength of contraction Blood volume Conduction system |
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What is:
Heart rate? Stroke Volume? Cardiac Output? |
HR: Speed of the heart beat usually measured in bpm (beats per minute) SV: The volume or amount of blood pumped out of the left ventricle CO: The volume of blood ejected from the left ventricle in one minute. (Also called minute volume) |
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State the relationship between CO, HR and SV |
HR x SV =CO |
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Explain systolic blood pressure....
Explain diastolic blood pressure.... |
Pressure exerted from the force of a contraction in a heart beat resonating through the arteries.
The number representing the relative pressure in the arteries between heart beats. |
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What do you understand by the term pulse pressure? |
This is the difference between systolic and diastolic blood pressures, usually measured in mmHg.
IE. 120/70 Pulse pressure=50 |
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Outline mechanisms involved in moment by moment blood pressure homeostasis... |
HR or SV increase>>>>>>>> BP raises >>>>>>>>>>>> Baroreceptors stimulated >>>>>>>>>>> Sensory impulses sent to cardiac centre>> >>> Parasympathetic impulses to heart>>>>> SA node inhibited>>>>>>>>> Heart rate decreased.
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Outline the mechanisms involved in longer term blood pressure homeostasis... |
Juxtaglomerular apparatus
Microscopic unit found in the kidneys that regulates the function of each nephron. |
