WorksheetsOCR A-Level PE CV System Revision
Total questions: 11
Worksheet time: 17mins
What are the chambers at the top of the heart called?
Atria
Ventricles
Arteries
Valves
Reorder the following
SA Node
AV Node
Bundle of His
Bundle Branches
Purkinje Fibres
The (a) phase of cardiac muscle where chambers fill with blood.
Correctly Identify the following components of the heart.
Aortic Valve
& Inferior Vena Cava
Complete the following equation for Cardiac Output: CO =
(a)
Draw what HR response would look like for steady state exercise.
Match the following
Heart Rate @ Rest
70-72bpm
Stroke Volume @ Sub Max Intensity
100-120ml
Cardiac Output @ Max Intensity
20-30l/min
HR @ Max Intensity
220-age
Stroke Volume @ Rest
70ml
Organise these options into the right categories
Proprioceptors
Chemoreceptors
Baroreceptors
Temperature
Venous Return
Adrenaline
Noradenaline
At rest (a) to organs (b) , increasing blood flow; arterioles to (c) (d) to limit blood flow.
Pocket Valves - Located within the (a) and prevent (b) of blood.
(c) - the wall of each vein contains (d) which venoconstricts, helping (e) the blood back towards the heart.
Starling's Law relates to what response?
The return of Blood to the Right Atria Through the Veins
Increased Venous Return leaved to Increased SV, due to an increased stretch of ventricular walls and therefore force of contraction.
Narrowing of the Arteries. arterioles and pre-capillary Sphincters.
