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Sport - Anatomy and Physiology > The Heart > Flashcards

Flashcards in The Heart Deck (11)
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1
Q

What is the correct order for the cardiac cycle?

A
  • Distole
  • Atrial systole
  • Ventricular systole
  • Diastole
2
Q

What does myogenic mean?

A

The heart can generate its own electrical impulse

3
Q

What is the correct order for cardiac conduction?

A
  • SA node
  • AV node
  • Bundle of His
  • Bundle branches
  • Purkynje Fibres
4
Q

What is the role of the SA node?

A

Pacemaker gives electrical impulses, causing atrial systole

5
Q

What is the role of the AV node?

A

Delays the impulse for 0.1s before passing into the bundle of His

6
Q

What is the bundle of His?

A

Located in the septum and splits the impulse into two branches for left and right

7
Q

What is the role of the bundle branches?

A

Carries the impulse around the walls of the ventricles

8
Q

What is the role of the purkynje fibres?

A

Carries the impulse through the ventricle walls to cause ventricular systole

9
Q

What is stroke volume?

A

The volume of blood leaving the left ventricle per cardiac cycle

10
Q

What is venous return?

A

The amount of blood to return to the heart between cardiac cycles

11
Q

What is cardiac output?

A

The volume of blood leaving the left ventricle per minute