cardiovascular system Flashcards
What is the primary function of the cardiovascular system?
To transport nutrients, gases, hormones, and waste products throughout the body.
This system plays a critical role in maintaining homeostasis.
What are the three main types of blood vessels?
- Arteries
- Veins
- Capillaries
Each type has a unique structure and function in the circulatory system.
What are the major structures of the heart?
- Atria
- Ventricles
- Valves
- Septum
These components work together to ensure efficient blood circulation.
What are the common cardiovascular measurements?
- Heart rate
- Blood pressure
- Cardiac output
These measurements are essential for assessing cardiovascular health.
What is blood pressure?
The force exerted by circulating blood on the walls of blood vessels.
It is measured in millimeters of mercury (mmHg) and typically expressed as systolic over diastolic pressure.
What is the primary function of the cardiovascular system?
To transport blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.
True or False: The heart has four chambers.
True
What are the names of the two lower chambers of the heart?
Ventricles
Which blood vessels carry oxygenated blood away from the heart?
Arteries
What is the function of veins?
To carry deoxygenated blood back to the heart.
What is the largest artery in the body?
Aorta
Multiple Choice: Which of the following is NOT a component of blood? A) Red blood cells B) Plasma C) Neurons D) White blood cells
C) Neurons
What is the role of red blood cells?
To transport oxygen from the lungs to the body and carbon dioxide from the body to the lungs.
What is the term for the pressure in the arteries when the heart beats?
Systolic pressure
What is the term for the pressure in the arteries when the heart is at rest?
Diastolic pressure
Fill in the blank: The _______ circulatory system carries blood to and from the lungs.
pulmonary
What is the role of capillaries in the cardiovascular system?
To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste products between blood and tissues.
Which organ is responsible for pumping blood throughout the body?
Heart
What are the two main types of circulation in the cardiovascular system?
Systemic circulation and pulmonary circulation.
What is the function of the valves in the heart?
To prevent the backflow of blood.
Fill in the blank: The _______ system regulates the heart rate and blood pressure.
nervous
What type of blood vessel has the thinnest walls?
Capillaries
Multiple Choice: Which component of blood is primarily responsible for clotting? A) Plasma B) Platelets C) Red blood cells D) White blood cells
B) Platelets
What is the main function of white blood cells?
To fight infection and protect the body against disease.
