No student devices needed. Know more
20 questions
What does the heart do?
It pumps blood to all the parts of the body.
It is a part of the circulatory system.
It is one of the main organs of the body.
It can go fast when you run or slow when you are sleeping.
What do arteries carry?
blood with carbon dioxide and waste
blood with oxygen and nutrients
blood
Blood with waste and oxygen
What is the main organ of the circulatory system?
small intestine
bone
lungs
heart
Arteries carry oxygen rich blood away from the heart.
True
False
Veins carry oxygen poor blood back to the heart.
False
True
The job of the heart is to . . .
pump blood around the body.
send food to the small intestines.
break down food.
give energy to the body.
The heart is about the size and shape of your . . .
head
fist
hand
foot
In which system of the human body does the heart belong?
Nervous
Skeletal
Cardiovascular / Circulatory
Digestive
Arrange the blanks below with the letters to show the correct order :
A : as the blood circulation the body, it exchanges its oxygen for carbon dioxide produced by the body cells.
B : the hearth pumps blood to the lungs.
C : the blood which now has more carbon dioxide flows back to the heart again.
D : the heart pumps it to the rest of the body.
E : this blood which now has more oxygen flows back to the heart.
F : in the lungs, the blood exchanges its carbon dioxide for oxygen.
B-F-E-D-A-C
F-E-A-C-D-B
D-A-C-B-F-D
B-A-C-B-D-F
Factors that affect our heart rate are
Age
Health
Activity
Pulse
Our pulse rate is the _______ our heart beats in a minute.
number of times
number of blood flow
What are the parts of our circulatory system?
blood
blood vessels
hearth
there is no correct answer
The heart rate of an average healthy is _______ times per minute.
60-70
75-85
40-55
90-100
Explore all questions with a free account