To review:
The difference between an open and closed circulatory system and the reason behind the inability of humans to function with an open circulatory system.
Introduction:
Different organisms possess different kinds of circulatory systems, which have evolved into two different types of the circulatory systems, which are closed and open circulatory system. Open circulatory system is one where body tissues and organs are surrounded by a fluid called hemolymph. This type of circulatory system is mainly found in invertebrates except for earthworm. The closed circulatory system has blood vessels. These blood vessels run transversely through the body and transport oxygen and blood to different organs.
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Biology: The Dynamic Science (MindTap Course List)
- What is the main purpose of the circulatory system? move blood throughout the body move lymphatic fluid from the tissue to the heart digest food move blood and lymph throughout the bodyarrow_forwardAn organism’s circulatory system functions in transport, delivering nutrients to cell and removing waste. The structure and efficiency of circulatory systems varies in different organisms.note whether the statements below are consistent with an open or closed circulatory system. The circulating fluid flows in one direction (unidirectionally) through a circulatory loop. The circulating fluid is called hemolymph. Ostia are pores in the heart, important for circulatory function. The circulating fluid is called blood. The circulating fluid remains in vessels as it moves throughout the organism. Is the more efficient type of circulatory system.arrow_forwardWhen comparing the circulatory systems of vertebrates, indicate whether the following statements are true or false. There is no mixing of oxygenated (high [O2]) and deoxygenated (low [O2]) blood in the ventricle of a fish. #apply Question 9 options: True False The circulatory system of amphibians is more efficient than that of fish because there are two circulatory loops. #analyze Question 10 options: True False The only vertebrates without a hepatic portal venous system connecting the gut to the liver are the fish. #analyze Question 11 options: True False There is no mixing of oxygenated (high [O2]) and deoxygenated (low [O2]) blood in the ventricle of a frog. #apply Question 12 options: True Falsearrow_forward
- Vertebrates, such as humans, have a(n) pathway. pulmonary circulatory lungs The heart pumps blood to the tissues through the circuit. systemic terrestrial The heart pumps blood to the lungs through the circuit. gills one-circuit This type of circulatory pathway is seen in organisms that utilize to breathe air. two-circuitarrow_forwardWhat is a characteristic of the circulatory systems of arthropods and mollusks that distinguishes them from the circulatory system of echinoderms? They have lungs. They have muscular pumps to circulate the extracellular fluid. They are closed circulatory systems. They have extracellular fluid to transport substances to and from internal organs. They have cilia to circulate the extracellular fluid.arrow_forwardThree circulatory systems of vertebrates are represented in the following diagram. Identify to which group of animals each circulatory system belongs and mention the reasons for considering them as such. ↑ Capilares de las branquias Aorta Capilares sanguíneos ↓ Capilares pulmonares Aorta Capilares sanguíneos ↓ Capilares pulmonares Aorta Capilares sanguineosarrow_forward
- The three major parts of the circulatory system are the heart, the blood vessels, and the blood. The heart is an organ made up of specialized cells. Which of these functions can the heart perform that individual heart cells cannot? using energy pumping blood growing removing wastearrow_forwardMany invertebrates utilize the body cavity as a circulatory system. However, in humans, the body cavity plays no role whatsoever in circulation. Why?arrow_forwardWhich of the following is not a function of the vertebrate circulatory system?a. regulation of body temperatureb. protection against injury, foreign toxins, and microbesc. transportation of materials in the bodyd. All of the above are functions of the circulatory system.arrow_forward
- Some animals use diffusion instead of a circulatory system. Examples include: A. sponges and jellyfish B. flatworms and arthropods C. mollusks and annelids D. birds and jellyfisharrow_forwardBriefly describe the differences among animal circulatory systems. What is an open system versus a closed? What are the anatomical differences among vertebrate hearts?arrow_forwardFish, like all invertebrates have a single circulatory systems circulatory a) explain why single circulatory system were not retained in terrestrial vertebrates b) what advantage a double circulatory system offer.arrow_forward
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