Circulatory System Overview

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary role of red blood cells?

To fight infections
To aid in digestion
To transport carbon dioxide to body tissues
To carry oxygen and carbon dioxide (correct)

Which vessel is typically responsible for carrying deoxygenated blood?

Pulmonary veins
Veins (correct)
Arteries
Aorta

What main function do valves serve within the heart?

To regulate blood pressure
To prevent blood backflow (correct)
To increase heart rate
To promote oxygen exchange

What component of blood is responsible for clotting and wound repair?

<p>Platelets (C)</p> Signup and view all the answers

Which circuit is involved in the blood flow between the heart and lungs?

<p>Pulmonary circulation (C)</p> Signup and view all the answers

Flashcards

What is the heart's role in the circulatory system?

The heart is the central organ of the circulatory system, responsible for pumping blood throughout the body.

What are the three types of blood vessels and their functions?

Arteries carry oxygen-rich blood away from the heart, while veins carry deoxygenated blood back to the heart. Capillaries are tiny blood vessels that connect arteries and veins, allowing exchange of gases and nutrients.

What is the primary function of red blood cells?

Red blood cells are responsible for transporting oxygen from the lungs to the body's tissues and carbon dioxide back to the lungs for exhalation.

What prevents blood backflow in the heart?

Valves are flap-like structures within the heart that prevent the backflow of blood, ensuring one-way blood circulation.

Signup and view all the flashcards

What are platelets and their function?

Platelets are small blood cells that play a crucial role in blood clotting and wound healing. They clump together to form a plug at the site of an injury, stopping bleeding.

Signup and view all the flashcards

Study Notes

Circulatory System

Main organ: The heart
Blood vessels: Arteries, veins, and capillaries
Red blood cells function: Carry oxygen from lungs to body and carbon dioxide back to lungs
Largest artery: Aorta
Vein blood type: Deoxygenated blood (except pulmonary veins, which carry oxygenated blood)
Liquid component of blood: Plasma
Structure preventing backflow in heart: Valves
Normal blood pressure range: Approximately 120/80 mmHg
Platelets function: Blood clotting and wound repair
Circuit carrying blood between heart and lungs: Pulmonary circulation