Medical Quiz

Human Circulatory System Quiz


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Which blood vessels carry blood back to the heart?

A. Arteries

B. Veins

C. Capillaries

D. Venules


The main function of the circulatory system is 

A. To give the body structure and support

B. Excrete waste

C. transport blood, nutrients, and gases throughout the body

D. to transport messages from the body to the brain


The plasma that contains blood cells is mainly made up of 

A. cytoplasm

B. nutrients

C. waste

D. water


What is the role of venules in the circulatory system?

A. Transporting oxygen to the body

B. Producing antibodies

C. Returning blood to the heart

D. Regulating body temperature


How does the heart work?

A. It pumps blood first to the lungs, back to the heart and then around the rest of the body.

B. It pumps blood first to the rest of the body, back to the lungs and then to the heart.

C. It pumps blood around the rest of the body, back to the heart and then to the lungs,


Which component of blood is responsible for carrying oxygen?

A. Haemoglobin

B. White blood cells

C. Platelets

D. Plasma


The circulation of blood between heart and the rest of the body.

A. pulmanory circulation

B. blood circulation

C. Systemic circulation


The five main parts of the circulatory system are?

A. heart, blood, nutrients, flakes, skin

B. heart, blood, valves, crust, mantle

C. heart, blood, veins, arteries, capillaries

D. heart, blood, cells, skin, nerves


What part of the heart is circled in yellow?

A. Left atrium

B. Right atrium

C. Left ventricle

D. Right ventricle


Left atrium receives oxygenated blood through

A. Coronary artery

B. Aorta

C. Pulmonary artery

D. Pulmonary vein


In which system of the human body does the heart belong?

A. Nervous

B. Skeletal

C. Cardiovascular

D. Digestive


When the atria contract, blood is squeezed into _________.

A. the ventricles

B. the valves

C. the veins

D. the arteries


What is the function of capillaries in the circulatory system?

A. Transporting oxygen to the body

B. Producing antibodies

C. Connecting arteries and veins

D. Regulating body temperature


Which type of blood cells are responsible for fighting infections?

A. Plasma

B. Haemoglobin

C. White blood cells

D. Platelets


Which of the following has the thickest wall?

A. Right ventricle

B. Left ventricle

C. Right auricle

D. Left auricle


Which part of the blood helps fight disease?

A. plasma

B. platelets

C. red blood cells

D. white blood cells


Which component of blood is responsible for carrying carbon dioxide?

A. Haemoglobin

B. White blood cells

C. Platelets

D. Plasma


the oxygenated blood leaves the heart through the _______to the body.

A. superior vene cava

B. inferior vena cava

C. aorta

D. pulmanory vein


__________ is a tiny blood vessel that allows an exchange between the blood and cells in other tissues.

A. artery

B. atrium

C. capillary

D. vein


What part of the heart is circled in yellow?

A. Left atrium

B. Right atrium

C. Left ventricle

D. Right ventricle


in the heart, Each side has an upper chamber ( Called _____ and a lower chamber ( called_______).

A. atrium, ventricle

B. artery, vein

C. atrium, vein

D. ventricle, atrium


Which of the following carries deoxygenated blood?

A. pulmonary vein

B. pulmonary artery

C. aorta

D. coronary artery


Which of the following is NOT a formed element of blood?

A. plasma

B. red blood cells

C. platelets

D. white blood cells


Tricuspid valve is present between

A. Left atrium and Left ventricle

B. Right atrium and Right ventricle

C. Left atrium and Right atrium

D. Right ventricle and Left ventricle


What are the smallest blood vessels in the body called?

A. Capillaries

B. Veins

C. Arteries

D. Venules




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