The cardiovascular system

JakeHull8
Flashcards by JakeHull8, updated more than 1 year ago
JakeHull8
Created by JakeHull8 over 5 years ago
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GCSE PE GCSE Flashcards on The cardiovascular system, created by JakeHull8 on 11/22/2015.

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Question Answer
What are the main components of the circulatory system the heart the blood vessels the blood
Define the term heart rate the number of times the heart beats in a minute
Define the term stroke volume the amount of blood leaving the heart each beat
Define cardiac output heart beat x stroke volume the amount of blood pumped by the heart in one minute
define resting heart rate this is the heart rate when the body is at complete rest
define recovery rate the time it takes for the heart to return to resting heart rate
define systolic and diastolic pressure measured by a sphygomomanometer systolic - the pressure against the vessel walls when the heart is contracting diastolic - the pressure against the vessel walls when the heart is relaxing ( in between beats)
state some short term effects of exercise on the cardiovascular system - increase in heart rate - increase in systolic blood pressure - increase in stroke volume - increase in cardiac output
state some long term effects of exercise on the cardiovascular system - increase in size and strength of the heart ( cardiac hypertrophy) - increase in stroke volume - decrease in resting heart rate - quicker recovery rate - increased maximum cardiac output - increased number of red blood cells - increased capillerisation
What is the role of the cardiovascular system 1. To transport oxygen in the blood to the working muscles 2. remove waste products 3. return the blood to the lungs for oxygenation
What is the equation for cardiac output stroke volume x heart rate
Which is normally lower systolic or diastolic blood pressure diastolic, because the blood flow is slower when relaxing - so there pressure is lower.
What's an issue with too high blood pressure it can put strain on your arteries
What are the effects of an unhealthy diet on the blood vessels fatty deposits can build up in blood vessels, resulting in high blood pressure and high cholesterol.
How many types of cholesterol are there? 2
What are the names for the two cholesterols (HDL) High Density Lipoproteins - This is the good cholesterol that can take away cholesterol to be broken down (LDL) Low Density Lipoproteins - This is the bad cholesterol that causes deposits to build up in the arteries. This makes it harder for the blood to circulate.
How can long term exercise affect blood pressure and cholesterol It lowers your blood pressure It lowers your cholesterol levels.
What are the dangers of doing nothing to reduce your b.p or cholesterol levels You could suffer from stoke or coronary heart failure
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