What is the primary function of the circulatory system?
circulatory and lymph

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Science
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University
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1.
FLASHCARD QUESTION
Front
Back
The primary function of the circulatory system is to transport blood, nutrients, oxygen, carbon dioxide, hormones, and waste products throughout the body.
2.
FLASHCARD QUESTION
Front
What is lymph and its role in the body?
Back
Lymph is a clear fluid that circulates through the lymphatic system, helping to remove waste and toxins from tissues, and plays a crucial role in immune function.
3.
FLASHCARD QUESTION
Front
What is vasoconstriction?
Back
Vasoconstriction is the contraction of the smooth muscle in the walls of blood vessels, which decreases their diameter and increases blood pressure.
4.
FLASHCARD QUESTION
Front
What is vasodilation?
Back
Vasodilation is the relaxation of blood vessel walls, leading to an increase in their diameter and a decrease in blood pressure.
5.
FLASHCARD QUESTION
Front
What percentage of blood volume is made up of plasma?
Back
Approximately 50 to 60 percent of blood volume is made up of plasma.
6.
FLASHCARD QUESTION
Front
What are capillaries and their function?
Back
Capillaries are the smallest blood vessels that connect arterioles and venules, facilitating the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
7.
FLASHCARD QUESTION
Front
What is the thoracic duct?
Back
The thoracic duct is the largest lymphatic vessel in the body, responsible for draining lymph from the left side of the head, neck, chest, abdomen, and both legs into the bloodstream.
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