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WorksheetsCirculatory and Lymphatic Systems Worksheet
Total questions: 37
Worksheet time: 19mins
What is the primary function of red blood cells?
Fight infections
Carry oxygen
Stop bleeding
Regulate body temperature
Which type of muscle is found in the heart?
Smooth muscle
Skeletal muscle
Cardiac muscle
Striated muscle
What is the main function of the lymphatic system?
To transport oxygen
To produce energy
Protection and immunity
Regulate blood pH
Which blood vessel carries oxygenated blood from the lungs to the heart?
Aorta
Pulmonary vein
Pulmonary artery
Vena cava
What is the role of platelets?
To carry oxygen
To fight infections
To clot blood
To regulate temperature
Which of the following describes a vein?
Thick outer walls
Carries blood under high pressure
Contains one-way valves
Narrow lumen
What is the largest artery in the body?
Pulmonary artery
Aorta
Vena cava
Coronary artery
What is the name of the thin-walled blood vessels where gas exchange occurs?
Arteries
Veins
Capillaries
Venules
What is the role of the spleen in the lymphatic system?
Produces lymphocytes
Filters toxins and removes old red blood cells
Absorbs fats
Produces plasma
What is the function of the pulmonary artery?
Carries oxygenated blood to the heart
Carries deoxygenated blood to the lungs
Carries oxygenated blood to the body
Carries deoxygenated blood to the body
What is the percentage of plasma in blood?
45%
55%
65%
35%
What are the two main groups of white blood cells?
Platelets and erythrocytes
Granulocytes and agranulocytes
Plasma and leukocytes
Myoglobin and haemoglobin
Which layer of the heart is the thickest?
Endocardium
Pericardium
Myocardium
Epicardium
What is the main role of haemoglobin in red blood cells?
To store nutrients
To carry oxygen
To fight pathogens
To aid blood clotting
Which blood vessel carries deoxygenated blood to the heart?
Pulmonary artery
Pulmonary vein
Vena cava
Aorta
What is the name of the valve on the left-hand side of the heart?
Tricuspid valve
Semi-lunar valve
Pulmonary valve
Bicuspid (mitral) valve
What is the main function of lymph nodes?
Carry oxygen
Filter lymph fluid
Produce haemoglobin
Absorb fats
Which structure prevents backflow of blood in the veins?
Lumen
One-way valves
Tunica media
Intercalated discs
What is the main function of white blood cells?
Carry oxygen
Clot blood
Fight infections
Regulate temperature
What is the role of tunica media in blood vessels?
Allows stretch and recoil
Prevents backflow
Acts as a valve
Provides oxygen
What does the interventricular septum do?
Pumps blood
Separates the two ventricles
Filters toxins
Stores blood
What is the name of the fluid part of blood?
Plasma
Platelets
Erythrocytes
Leukocytes
What is the role of the pericardium?
To pump blood
To encase the heart
To separate atria and ventricles
To regulate heart rhythm
Which type of blood vessel has the thickest walls?
Arteries
Veins
Capillaries
Lymphatic vessels
During which stage does the heart fill with blood?
Systole
Diastole
Contraction
Relaxation
What is the primary function of the thymus gland?
Produces antibodies
Matures T-cells
Stores red blood cells
Regulates blood pressure
What is the role of myoglobin in skeletal muscle?
Stores oxygen
Aids blood clotting
Produces energy
Transports nutrients
Which type of muscle is under voluntary control?
Cardiac
Smooth
Skeletal
Visceral
What is the function of the chordae tendineae?
Connect muscle to valves
Pump blood
Filter lymph
Store oxygen
Which structure carries lymph back to circulation?
Lymph nodes
Lymph ducts
Lymph vessels
Bone marrow
Which part of the heart receives deoxygenated blood?
Left atrium
Right atrium
Left ventricle
Right ventricle
What is the function of the pericardium?
To pump blood
To protect the heart
To separate heart chambers
To maintain blood pressure
What is the shape of red blood cells?
Irregular
Kidney-shaped
Biconcave
Round
What do the Purkinje fibres stimulate?
Atrial contraction
Ventricular contraction
Blood oxygenation
Nervous impulses
What connects the heart valves to the muscles?
Pericardium
Chordae tendineae
Interventricular septum
Myocardial cells
What is the role of the spleen in strenuous activity?
To produce antibodies
To release red blood cells
To fight infections
To transport hormones
What does the sino-atrial node stimulate?
Ventricular contraction
Atrial contraction
Blood oxygenation
Separation of the heart chambers
