The structure of the heart 3.2.4 Flashcards
1
Q
What is the function of the heart
A
Pumps blood to move substances around the body - as a four chambered muscle
2
Q
Where is the heart located?
A
Between the lungs in the centre of the chest (thorax)
3
Q
What are the coronary arteries?
A
They provide the heart with oxygen - as they get oxygen from the aorta.
4
Q
What is the heart made from?
A
Cardiac muscle - meaning it can contract without getting fatigued
5
Q
What is cardiac muscle comprised of?
A
Cells that are connected by cytoplasmic bridges, which enables electrical impulses to pass through the tissue.
It contains large numbers of mitochondria and myoglobin
