Blood Circulation: Tracing the Pathways of Blood Flow

Question 1

Which of the following is not a type of blood vessel?

Accepted Answer

Nerve

Answer

Artery

Answer

Vein

Answer

Capillary

Question 2

What is the primary function of pulmonary circulation?

Accepted Answer

To carry deoxygenated blood to the lungs

Answer

To carry oxygenated blood to the body's tissues

Answer

To transport nutrients to the cells

Answer

To remove waste products from the body

Question 3

Which chamber of the heart receives deoxygenated blood from the body?

Accepted Answer

Right atrium

Answer

Left atrium

Answer

Left ventricle

Answer

Right ventricle

Question 4

What is the main function of valves in the circulatory system?

Accepted Answer

To prevent backflow of blood

Answer

To regulate blood pressure

Answer

To control heart rate

Answer

To produce blood cells

Question 5

What is the primary function of coronary circulation?

Accepted Answer

To supply oxygen and nutrients to the heart muscle

Answer

To remove waste products from the heart

Answer

To regulate blood pressure

Answer

To transport blood cells

Question 6

Which blood vessel carries blood with the highest pressure?

Accepted Answer

Artery

Answer

Vein

Answer

Capillary

Question 7

What is the term for the blood vessels that connect arteries and veins?

Accepted Answer

Capillaries

Answer

Venules

Answer

Arterioles

Answer

Lymphatics

Question 8

What is the main role of hemoglobin in blood?

Accepted Answer

To transport oxygen

Answer

To regulate blood clotting

Answer

To fight infection

Answer

To maintain fluid balance

Question 9

Which of the following is not a function of blood?

Accepted Answer

Producing hormones

Answer

Transporting nutrients

Answer

Fighting infection

Answer

Regulating body temperature

Question 10

What is the main function of the atrioventricular valves in the heart?

Accepted Answer

Prevent blood from flowing back into the atria when the ventricles contract

Answer

Control the heart's rate

Answer

Help fill the ventricles with blood

Answer

Stop blood from entering the pulmonary artery

Question 11

How does blood clotting help maintain the stability of the body's internal environment?

Accepted Answer

Prevents excessive blood loss and aids in wound healing

Answer

Keeps blood pressure within normal ranges

Answer

Neutralizes acids in the bloodstream

Answer

Boosts the body's immune response

Question 12

Describe the unique characteristics and functions of arteries, veins, and capillaries in the circulatory system.

Accepted Answer

Arteries: thick walls, carry oxygenated blood away from the heart, maintain blood pressure

Accepted Answer

Veins: thin walls, carry deoxygenated blood towards the heart, prevent backflow

Accepted Answer

Capillaries: single-cell-thick walls, facilitate substance exchange between blood and tissues, regulate body temperature

Answer

All blood vessels have identical structure and function (Incorrect)

Question 13

Which mechanism slows the heart rate and dilates blood vessels?

Accepted Answer

Parasympathetic nervous system activation

Answer

Sympathetic nervous system activation

Answer

Epinephrine release

Answer

Antidiuretic hormone release

Question 14

In the systemic circulation, which blood vessel carries oxygenated blood away from the heart?

Accepted Answer

Aorta

Answer

Vena cava

Answer

Pulmonary artery

Answer

Pulmonary vein

Question 15

During the cardiac cycle, which chamber of the heart receives oxygenated blood from the lungs?

Accepted Answer

Left atrium

Answer

Right atrium

Answer

Right ventricle

Answer

Left ventricle

Question 16

What is the name of the network of tiny blood vessels that connect arteries to veins?

Accepted Answer

Capillaries

Answer

Veins

Answer

Arteries

Answer

Lymphatics

Question 17

In blood transfusions, which blood group is considered the universal donor?

Accepted Answer

O-

Answer

A+

Answer

B+

Answer

AB+

Question 18

What is the primary function of platelets in the blood?

Accepted Answer

Clot formation

Answer

Oxygen transport

Answer

Hormone regulation

Answer

Immune response

Question 19

Which blood vessel supplies oxygenated blood to the heart muscle?

Accepted Answer

Coronary artery

Answer

Aorta

Answer

Pulmonary artery

Answer

Vena cava

Question 20

What is the term for the process of gas exchange between the blood and the tissues?

Accepted Answer

Diffusion

Answer

Osmosis

Answer

Filtration

Answer

Active transport

Question 21

Which blood test is used to determine the number of red blood cells in a sample?

Accepted Answer

Hematocrit test

Answer

Hemoglobin test

Answer

Platelet count

Answer

White blood cell count

Question 22

Starting with the inferior vena cava, which option correctly describes the flow of blood through the heart?

Accepted Answer

Inferior vena cava → Right atrium → Right ventricle → Pulmonary artery → Pulmonary veins → Left atrium → Left ventricle → Aorta

Answer

Inferior vena cava → Right atrium → Left atrium → Left ventricle → Aorta

Answer

Inferior vena cava → Right atrium → Right ventricle → Aorta

Answer

Inferior vena cava → Left atrium → Left ventricle → Pulmonary artery → Aorta

Question 23

During which phase of the cardiac cycle do the ventricles contract and expel blood?

Accepted Answer

Systole

Answer

Diastole

Answer

Atrial systole

Answer

Valve opening