Blood Composition Quiz

Study Notes

Blood Composition

Plasma makes up 55% of blood volume.
Plasma contains carbohydrates, proteins, and fats.
Proteins in plasma are mainly Albumin, Globulin, and Fibrinogen.
Red blood cells (RBCs) make up 45-50% of blood volume.
RBCs lack a nucleus and contain hemoglobin, giving blood its red color.
Hemoglobin binds to oxygen and carbon dioxide for transport in the body.
About 20 million RBCs are destroyed every second and replaced by new ones.
White blood cells (WBCs) are present in smaller numbers compared to RBCs.
WBCs contain a nucleus and other cellular components.
WBCs lack hemoglobin.
WBCs fight against disease-causing germs that enter the body.
WBCs are called the "soldiers of the human body".
Platelets are small, irregular-shaped cell fragments formed in bone marrow.
Platelets lack a nucleus but contain enzymes and other factors for blood clotting.
Platelets help stop bleeding by forming a clot at the injury site.
Blood transports nutrients, enzymes, hormones, and other essential substances throughout the body.
Blood maintains body temperature by transferring heat.
Blood regulates water and salt content within the body.

Heart Attacks and Blood Pressure

The cardiovascular system circulates blood throughout the body.
The heart, a muscular organ, is located in the thoracic cavity, slightly tilted towards the left side.
The heart is enclosed in a protective double-layered membrane called the pericardium.
A heart attack results from blocked blood flow to the heart muscle.
Factors contributing to heart attack include high blood pressure, diabetes, and lack of physical activity.
Blood pressure is the force of blood pushing against artery walls.
A reading of 120/80 mmHg is considered normal for adults.
High blood pressure is a significant risk factor for heart attack.
Stressful lifestyle, lack of physical activity, and unhealthy eating habits contribute to high blood pressure.
Regular exercise, a healthy diet, and maintaining a healthy weight prevent high blood pressure.

Blood Sugar Levels

Blood sugar levels are regulated by the pancreas.
Glucose is the primary sugar source for the body.
Excess glucose can be stored as glycogen in the liver and muscles.
High blood sugar, or hyperglycemia, is a problem.
Consuming green vegetables, fruits, and a balanced diet while exercising regularly maintains healthy blood sugar levels.
Long-term high blood sugar can lead to diabetes.

Blood Type

Blood type is categorized by the presence or absence of specific antigens on red blood cells.
Four main blood groups exist: A, B, AB, and O.
The most common blood type globally is O.
Blood type compatibility is crucial for safe blood transfusions.

Description

This quiz tests your knowledge on the composition of blood, including the roles of plasma, red blood cells, white blood cells, and platelets. You'll explore how each component functions and contributes to overall health. Challenge yourself to understand the intricate balance within our circulatory system.