Circulatory Open And Closed Flashcards
(26 cards)
What is the main function of the circulatory system?
To transport nutrients, gases, hormones, and waste products throughout the body.
True or False: An open circulatory system has blood contained entirely within vessels.
False
Fill in the blank: In a closed circulatory system, blood is contained within _______.
blood vessels
What type of circulatory system do humans have?
Closed circulatory system
Which organisms typically have an open circulatory system?
Invertebrates such as insects and some mollusks.
True or False: In an open circulatory system, hemolymph is pumped directly into the body cavity.
True
What is hemolymph?
A fluid that serves as both blood and interstitial fluid in open circulatory systems.
Which system is generally more efficient for transporting oxygen, open or closed?
Closed circulatory system
Multiple Choice: Which of the following is a characteristic of a closed circulatory system? A) Blood bathes organs directly B) Blood is contained in vessels C) Low pressure D) All of the above
B) Blood is contained in vessels
What is the primary advantage of a closed circulatory system?
It allows for more efficient transport of nutrients and gases due to higher pressure.
Fill in the blank: In a closed circulatory system, the heart pumps blood through _______.
a network of vessels
True or False: Open circulatory systems can regulate blood flow to different parts of the body.
False
What is an example of an organism with a closed circulatory system?
Humans
Multiple Choice: Which of the following animals has an open circulatory system? A) Fish B) Frog C) Grasshopper D) Human
C) Grasshopper
What is the role of capillaries in the circulatory system?
To facilitate the exchange of gases, nutrients, and waste between blood and tissues.
True or False: The blood pressure in an open circulatory system is typically higher than in a closed system.
False
What type of blood is found in open circulatory systems?
Hemolymph
Fill in the blank: In closed circulatory systems, blood is pumped by the heart into _______.
arteries
What are the two main types of circulatory systems?
Open and closed circulatory systems.
Multiple Choice: Which circulatory system is more adaptable to varying activity levels? A) Open B) Closed C) Both D) Neither
B) Closed
What is one disadvantage of an open circulatory system?
Less efficient transport of oxygen and nutrients.
True or False: In a closed circulatory system, blood can flow more rapidly to where it is needed.
True
Fill in the blank: Open circulatory systems are typically found in _______ animals.
smaller or less active
What is the main fluid in a closed circulatory system?
Blood
