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WorksheetsHeart and Blood Check-in
Total questions: 20
Worksheet time: 7hrs 40mins
The human heart is a four-chambered, muscular organ located in which main body cavity?
Abdominal cavity
Pelvic cavity
Thoracic cavity
Cranial cavity
What is the muscular wall called that separates the right and left sides of the heart to prevent the mixing of different blood types?
Pericardium
Papillary Muscle
Septum
Aorta
Which chamber of the heart is described as the main "pumping chamber" responsible for sending oxygenated blood to the rest of the body (Systemic Circulation)?
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle
When deoxygenated blood returns to the heart from the body through the Vena Cava, which collection chamber does it enter first?
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle
The Right Atrioventricular (AV) valve, which sits between the right atrium and the right ventricle, is also known as the...?
A. Aortic Valve
B. Mitral Valve
C. Pulmonary Semilunar Valve
D. Tricuspid Valve
What is the defining characteristic of an artery regarding blood flow direction?
They carry blood away from the heart
They carry blood toward the heart
They carry only deoxygenated blood
They connect arteries directly to veins
Which blood vessels are the ONLY arteries that carry deoxygenated blood (blood lacking oxygen)?
Coronary Arteries
Aorta
Pulmonary Arteries
Arterioles
Why do veins, unlike arteries, contain internal valves?
To increase blood pressure
To prevent the backflow of blood
To filter waste products
To store extra blood volume
What key process occurs primarily across the walls of capillaries?
Maintaining blood pressure
Pumping blood out of the heart
Exchanging gases, nutrients, and waste products
Carrying oxygenated blood to the head
What is the main job of the Coronary Arteries?
Transporting deoxygenated blood to the lungs
Taking blood from the heart to the body
Connecting arteries and veins
Supplying blood directly to the heart muscle itself
Red Blood Cells (Erythrocytes) are the most abundant type of blood cell. What is their main function?
Causing blood clotting
Fighting infection
Carrying oxygen (O₂)
Transporting hormones
The straw-colored, fluid portion of blood called plasma is made up mostly of what substance?
Nutrients
Proteins
Water (approximately 90%)
Red blood cells
What iron-containing protein is found inside red blood cells and is specifically responsible for carrying oxygen?
Fibrin
Serum
Leukocyte
Hemoglobin
The primary role of Leukocytes (White Blood Cells) is related to which bodily system?
Transporting nutrients
Producing hormones
Identifying and destroying antigens (immune system defense)
Initiating blood clotting
During the process of blood clotting, which protein forms the fiber-like "net" over a wound to create the clot?
Hemoglobin
Platelets
Serum
Fibrin
If a person has a heart valve that has become narrowed, restricting the blood flow passing through it, what is this condition called?
Prolapse
Regurgitation
Stenosis
Atresia
What is the core definition of (Congestive) Heart Failure?
When the coronary arteries are blocked by plaque
When the heart valve flaps become floppy
When the heart muscle becomes thickened
When the heart cannot pump enough blood to meet the body’s demands
Dilated cardiomyopathy is a disorder that affects the heart muscle, causing the ventricles to become...?
Thinned and stretched
Overly rigid and stiff
Blocked by plaque buildup
Rapidly beating
If a person's heart rate is greater than 100 beats per minute, this fast heartbeat abnormality is known as...?
Bradycardia (slow heartbeat)
Diastole
Tachycardia
Systole
The most common form of Coronary Artery Disease (CAD), where plaque causes the arteries to narrow, blocking blood flow, is known as...?
Nonobstructive CAD
SCAD (Spontaneous coronary artery dissection)
Mitral Prolapse
Obstructive CAD
