WorksheetsHuman circulatory system
Total questions: 18
Worksheet time: 2hrs 41mins
What is the function of the circulatory system?
To provide nutrients to the whole body
To maintain homeostasis for the body
To fight off infection or disease
To transport nutrients, oxygen, and blood throughout the body
How does the heart work?
It pumps blood first to the lungs, back to the heart and then around the rest of the body.
It pumps blood first to the rest of the body, back to the lungs and then to the heart.
It pumps blood around the rest of the body, back to the heart and then to the lungs,
What part of the heart is circled in yellow?
Left atrium
Right atrium
Left ventricle
Right ventricle
What part of the heart is circled in yellow?
Left atrium
Right atrium
Left ventricle
Right ventricle
What part of the heart is circled in yellow?
Left atrium
Right atrium
Left ventricle
Right ventricle
What part of the heart is circled in yellow?
Left atrium
Right atrium
Left ventricle
Right ventricle
The arteries carry oxygen rich blood away from the heart.
True
False
What do we call the tiny tubes that return blood back to the heart?
arteries
chambers
veins
ventricles
Your blood is made up of which of the following...
plasma, red blood cells, blue blood cells
white and red blood cells
plasma and platelets
plasma, red blood cells, white blood cells, and platelets
What part of blood is responsible for carrying oxygen and carbon dioxide to body cells?
Red Blood Cells
White Blood Cells
Platelets
Plasma
What part of blood is responsible for fighting infections?
Red Blood Cells
White Blood Cells
Platelets
Plasma
The five main parts of the circulatory system are?
heart, blood, nutrients, flakes, skin
heart, blood, valves, crust, mantle
heart, blood, veins, arteries, capillaries
heart, blood, cells, skin, nerves
What protects the body against blood loss?
Clots formed by clusters of leukocytes.
Clots formed by platelets and blood proteins.
Masses of erythrocytes and erythrocyte fragments.
Constriction of capillaries in the damaged area.
The most abundant compound in blood plasma, accounting
for about 92% of the total volume, is:
Oxygen
Gamma-globulin
Sodium chloride
Water
What ensures the unidirectional flow of blood through the
heart?
Constant pressure generated by the heart contractions.
Valves within the heart that prevent backflow of blood.
Squeezing action of smooth muscle tissue in arterial walls.
Continuous osmotic outflow of plasma from capillaries.
The ____________ carries blood throughout the body;
the ____________ carries blood only to and from the
lungs.
systemic circuit; pulmonary circuit
pulmonary circuit; systemic circuit
venous circulation; arterial circulation
arterial circulation; venous circulation
Which vessels have thin walls and small diameters that facilitate rapid diffusion of gases and nutrients between blood and body tissues?
Capillaries.
Arterioles.
Venules.
All of the above.
Valves in veins serve to:
Release excessive pressure to protect these thin-walled vessels.
Counteract the crushing force of surrounding skeletal muscles.
Prevent backflow of blood in the absence of high blood pressure.
Adjust blood pressure by compartmentalizing the venae cavae.
