Concepts | Questions | Media Resources |
34.1 Transport in invertebrates
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- Some invertebrates do not have a circulatory system and others have an open, as opposed to a closed, system.
| - How do invertebrates without circulatory systems exchange materials with their environments?
Answer - ______________ is the fluid circulated with an open circulatory system, while ____________ is circulated inside the vessels of a closed system.
Answer - Where is hemoglobin found and what does it do?
Answer
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Essential Study Partner
Summaries of major points- Transport mechanisms
- Invertebrates with a cavity
- With an open or closed system
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Explorations
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34.2 Transport in Vertebrates
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- Vertebrates have a closed circulatory system: arteries take blood away from the heart to the capillaries where exchange occurs, and veins take blood to the heart.
- Fishes have a single circulatory loop, whereas the other vertebrates have a double circulatory loop - to and from the lungs and also to and from the tissues.
| - All vertebrate animals have a (closed or open) circulatory system.
Answer - What are the three main types of blood vessels, how do they differ, and what does each do?
Answer - Describe the single-loop circulatory pathway of fish.
Answer - How many atria and ventricles are found in amphibian, reptile, bird, and mammal hearts?
Answer - Why is the left ventricle of crocodiles, birds, and mammals larger than the right?
Answer
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Essential Study Partner
Summaries of major points- Closed circulatory system
- Comparison of circulatory pathways
Labeling Exercises
Art Quizzes
Explorations
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34.3 Transport in humans
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- The right side of the heart pumps blood to the lungs, and the left side pumps blood to the tissues.
- Blood pressure causes blood to flow in the arteries and arterioles. Skeletal muscle contraction causes blood to flow in the venules and veins. In veins, valves prevent backflow of blood.
| - Describe the path of blood through the parts of the human heart.
Answer - What is the difference in systole and diastole?
Answer - What are the functions of the sinoatrial (SA) and atrioventricular (AV) nodes of the heart?
Answer - What is a portal system?
Answer - What happens to blood in the liver?
Answer
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Essential Study Partner
Summaries of major points- Heart pumps blood
- Path of blood through the heart
- Heartbeat
- Vascular pathways
- Blood pressure
Labeling Exercises
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Animations
Animation Quizzes
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Lab exercises
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34.4 Cardiovascular disorders
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- Although the cardiovascular system is very efficient, it is still subject to degenerative disorders.
| - Which is most considered in the medical treatment of hypertension, systolic or diastolic pressure?
Answer - What is atherosclerosis and what can be done to help prevent it?
Answer - What is the difference between a stroke and a heart attack?
Answer
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Essential Study Partner
Summaries of major points- Cardiovascular disease
- Hypertension
- Artherosclerosis
- Stroke and heart attack
Labeling Exercises
Animation Quizzes
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34.5 Blood, a transport medium
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- In humans, blood is composed of cells and a fluid containing proteins and various other molecules and ions.
- Blood clotting is a series of reactions that produces a clot - fibrin threads in which red blood cells are trapped.
- Exchange of substances between blood and tissue fluid across capillary walls supplies cells with nutrients and removes wastes.
| - What are the major functions of blood?
Answer - What is the major component of red blood cells?
Answer - Where are red blood cells made and destroyed?
Answer - What is the difference in the function of T lymphocytes and B lymphocytes?
Answer - What is the function of platelets?
Answer - Where do oxygen and nutrients diffuse out of and where do carbon dioxide and wastes diffuse into a capillary?
Answer
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Essential Study Partner
Summaries of major points- Blood has two components...
- Formed elements
- Capillary exchange
Labeling Exercises
Art Quizzes
Study Guides
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