The Circulatory System (Junior Cert Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the main components of the circulatory system?
What are the main components of the circulatory system?
Heart and blood vessels
What percentage of plasma is water?
What percentage of plasma is water?
What red pigment in red blood cells carries oxygen?
What red pigment in red blood cells carries oxygen?
Haemoglobin
What is the main function of white blood cells?
What is the main function of white blood cells?
Fight infection
Which blood vessels have thick walls and carry blood away from the heart?
Which blood vessels have thick walls and carry blood away from the heart?
Arteries
How thick are the walls of capillaries?
How thick are the walls of capillaries?
Only one cell thick
What type of muscle is the heart made of?
What type of muscle is the heart made of?
Cardiac muscle
Why does the left ventricle have the thickest muscle wall?
Why does the left ventricle have the thickest muscle wall?
It pumps blood around the entire body
What is the normal resting heart rate range for adults in beats per minute?
What is the normal resting heart rate range for adults in beats per minute?
to
Why does exercise increase heart rate?
Why does exercise increase heart rate?
To deliver more glucose and oxygen