Human Circulatory System Quiz

Play an AI-generated podcast conversation about this lesson

What is the primary function of red blood cells in the cardiovascular system?

Transport oxygen (correct)

Regulate blood pressure

Remove metabolic waste

Transport nutrients

The septum in the heart allows oxygenated and deoxygenated blood to mix.

False (B)

What percentage of plasma is water?

90%

Plasma proteins like fibrinogen play a key role in ________ and body defense.

blood clotting Signup and view all the answers

Match the substance found in plasma with its function:

Glucose = Release energy Amino acids = Growth and repair Lipids = Energy reserve Vitamins = Keep us healthy Signup and view all the answers

What is the primary role of hemoglobin in the blood?

Transport respiratory gases (B) Signup and view all the answers

Hemoglobin is made up of two polypeptide chains.

False (B) Signup and view all the answers

What type of process is the combination of hemoglobin with oxygen?

reversible Signup and view all the answers

What is the primary function of arteries in the circulatory system?

Carry blood away from the heart (B) Signup and view all the answers

Each heme group in hemoglobin contains a ______ atom.

iron Signup and view all the answers

Veins have higher blood pressure than arteries.

False (B) Signup and view all the answers

Name one type of muscle found in the heart.

Cardiac Signup and view all the answers

Match the following blood components with their respective functions:

Red Blood Cells (RBCs) = Transport of respiratory gases Plasma = Transport of nutrients White Blood Cells (WBCs) = Body defense Hormones = Transport of regulatory messages Signup and view all the answers

Veins primarily carry __________ blood back to the heart.

deoxygenated Signup and view all the answers

Match the blood vessels with their corresponding features:

Arteries = Higher blood pressure and oxygenated blood Veins = Thinner walls and deoxygenated blood Capillaries = Exchange of nutrients and gases Arterioles = Regulate blood flow into capillaries Signup and view all the answers

What characterizes the walls of arteries compared to veins?

Thicker and more elastic (B) Signup and view all the answers

Veins have a smaller lumen compared to arteries.

False (B) Signup and view all the answers

What mechanism helps maintain blood flow in veins?

Contraction of adjacent skeletal muscles Signup and view all the answers

The heart provides blood flow via ________ action.

pumping Signup and view all the answers

Which of the following statements about blood in arteries is correct?

It has a higher level of digested food substances. (B), It carries blood from the heart to the body. (D) Signup and view all the answers

The hepatic vein carries blood with low levels of urea and glucose during fasting.

False (B) Signup and view all the answers

What is the primary function of the heart in the circulatory system?

To pump blood throughout the body. Signup and view all the answers

Blood in the _____ carries the highest level of oxygen.

pulmonary vein Signup and view all the answers

Match the following components of the circulatory system with their functions:

Pulmonary artery = Carries blood to the lungs Renal vein = Carries blood with the lowest level of urea Hepatic artery = Carries blood to the liver Vena Cava = Carries blood low in oxygen back to the heart Signup and view all the answers

Which blood component is transported by the renal vein?

Blood low in urea (C) Signup and view all the answers

Veins carry blood away from the heart.

False (B) Signup and view all the answers

What does the liver do with blood coming from the digestive system?

Processes the blood. Signup and view all the answers

Which mechanism helps to prevent backflow of blood in veins?

One-way valves (C) Signup and view all the answers

The velocity of blood flow decreases as the total cross-sectional area decreases from capillaries to veins.

False (B) Signup and view all the answers

What is the primary function of the smooth muscle in the wall of an arteriole?

Regulating arteriole diameter Signup and view all the answers

The contraction of ______ muscles adjacent to veins helps propel blood toward the heart.

skeletal Signup and view all the answers

Match the following components to their respective functions.

Skeletal Muscle = Helps propel blood toward the heart Smooth Muscle = Regulates arteriole diameter One-Way Valves = Prevents backflow of blood Negative Thoracic Pressure = Draws blood toward the heart Signup and view all the answers

What is the main reason capillary walls are so thin?

To provide a short diffusion distance (D) Signup and view all the answers

Capillary networks have a smaller total cross-sectional area than arterioles.

False (B) Signup and view all the answers

Capillaries are highly _____, providing a large surface area for rapid exchange of materials.

branched Signup and view all the answers

What is the primary function of red blood cells?

Transport of oxygen using hemoglobin (D) Signup and view all the answers

Red blood cells have a nucleus when mature.

False (B) Signup and view all the answers

What is the appearance of white blood cells?

Irregular shape Signup and view all the answers

Red blood cells are produced in the __________.

red bone marrow Signup and view all the answers

Match the following blood components with their primary functions:

Red Blood Cells = Transport of oxygen White Blood Cells = Body defense Blood Platelets = Blood clotting Signup and view all the answers

What color are white blood cells?

Colorless (B) Signup and view all the answers

Where are old red blood cells broken down?

Liver and spleen Signup and view all the answers

Human Circulatory System Quiz

Choose a study mode

Podcast

Questions and Answers

What is the primary function of red blood cells in the cardiovascular system?

The septum in the heart allows oxygenated and deoxygenated blood to mix.

What percentage of plasma is water?

Plasma proteins like fibrinogen play a key role in ________ and body defense.

Match the substance found in plasma with its function:

What is the primary role of hemoglobin in the blood?

Hemoglobin is made up of two polypeptide chains.

What type of process is the combination of hemoglobin with oxygen?

What is the primary function of arteries in the circulatory system?

Each heme group in hemoglobin contains a ______ atom.

Veins have higher blood pressure than arteries.

Name one type of muscle found in the heart.

Match the following blood components with their respective functions:

Veins primarily carry __________ blood back to the heart.

Match the blood vessels with their corresponding features:

What characterizes the walls of arteries compared to veins?

Veins have a smaller lumen compared to arteries.

What mechanism helps maintain blood flow in veins?

The heart provides blood flow via ________ action.

Which of the following statements about blood in arteries is correct?

The hepatic vein carries blood with low levels of urea and glucose during fasting.

What is the primary function of the heart in the circulatory system?

Blood in the _____ carries the highest level of oxygen.

Match the following components of the circulatory system with their functions:

Which blood component is transported by the renal vein?

Veins carry blood away from the heart.

What does the liver do with blood coming from the digestive system?

Which mechanism helps to prevent backflow of blood in veins?

The velocity of blood flow decreases as the total cross-sectional area decreases from capillaries to veins.

What is the primary function of the smooth muscle in the wall of an arteriole?

The contraction of ______ muscles adjacent to veins helps propel blood toward the heart.

Match the following components to their respective functions.

What is the main reason capillary walls are so thin?

Capillary networks have a smaller total cross-sectional area than arterioles.

Capillaries are highly _____, providing a large surface area for rapid exchange of materials.

What is the primary function of red blood cells?

Red blood cells have a nucleus when mature.

What is the appearance of white blood cells?

Red blood cells are produced in the __________.

Match the following blood components with their primary functions:

What color are white blood cells?

Where are old red blood cells broken down?

More Like This

Human Circulatory System and Fluid Components

Circulatory System Overview

Human Circulatory System Quiz

Circulatory System and Blood Components