Term
| Which side of the heart contains deoxygenated blood? |
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Definition
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Term
| Name the type of muscle that the heart is made out of. |
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Definition
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Term
| Cardiac muscle can contract continuously without experiencing what? |
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Definition
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Term
| Name the valves found between the atria and ventricles. |
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Definition
| atrio-ventricular valves / AV Valves |
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Term
| Name the valves found between the ventricles and the arteries leaving the ventricles. |
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Definition
| semi-lunar valves / SL valves |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| when the heart muscle is relaxed |
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Term
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Definition
| when the heart muscle is contracted |
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Term
| When are the AV valves closed? |
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Definition
| during ventricular systole |
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Term
| When are the SL valves closed? |
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Definition
| during ventricular diastole |
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Term
| What causes the sounds of the heart beat? |
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Definition
| opening and closing of the heart valves |
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Term
| Where are the auto-rhythmic cells of the heart located? |
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Definition
| the pacemaker / SAN / Sino atrial node/ wall of the right atrium |
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Term
| What is the role of the SAN in the heart? |
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Definition
| sets the rate at which the heart beats |
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Term
| What causes atrial systole? |
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Definition
| impulses from the SAN spreading across the atria |
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Term
| Where is the AV Node situated? |
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Definition
| in the centre of the heart |
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Term
| What happens after the AV Node receives impulses from the SA Node? |
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Definition
| impulses travel down fibres in the central wall of the heart and then up through the walls of the ventricles, causing ventricular systole |
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Term
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Definition
| electrical currents in the heart |
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Term
| What are the three phases in an ECG? |
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Definition
| P wave, QRS complex, T wave |
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Term
| In an ECG which part of the cardiac cycle is represented by the P wave? |
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Definition
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Term
| In an ECG which part of the cardiac cycle is represented by the QRS complex? |
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Definition
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Term
| In an ECG which part of the cardiac cycle is represented by the T wave? |
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Definition
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Term
| Which part of the brain regulates the SAN through the antagonistic action of the autonomic nervous system (ANS)? |
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Definition
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Term
| Which part of the autonomic nervous system (ANS) contains cardiac accelerator nerves? |
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Definition
| sympathetic nervous system |
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Term
| In which part of the autonomic nervous system (ANS) do the nerves release nor-adrenaline? |
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Definition
| sympathetic nervous system |
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Term
| In which part of the autonomic nervous system (ANS) do the nerves release acetylcholine? |
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Definition
| parasympathetic nervous system |
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Term
| What does a sphygmomanometer measure? |
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Definition
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Term
| What does the cuff of a sphygmomanometer do when inflated? |
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Definition
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Term
| What is the typical blood pressure reading for a young adult? |
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Definition
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Term
| In a blood pressure reading what does the higher value represent? |
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Definition
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Term
| In a blood pressure reading what does the lower value represent? |
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Definition
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Term
| What condition is a major risk factor for many diseases including coronary heart disease? |
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Definition
| hypertension (high blood pressure) |
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Term
| What is the volume of blood pumped out by either ventricle during one systole? |
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Definition
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Term
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Definition
| the volume of blood pumped through each ventricle per minute |
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Term
| How do you calculate cardiac output? |
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Definition
| Heart Rate (bpm) X Stroke Volume (l) |
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