Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 33.2, Problem 1HYEW
Summary Introduction
To determine:
The reason how giraffe’s heart will pump the blood to its brain.
Introduction:
Heart is the muscular organ present in most animals. Heart serves as the pump to circulate the blood. The heart has four chambers. The cardiac muscles are of two types’ myocardial contractile cells and myocardial conducting cells.
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Students have asked these similar questions
Giraffes are the tallest living terrestrial mammals. Fully grown giraffes stand 4.3-5.7
m tall, and have elongated necks that can be up to 2-2.4 m in length. The circulatory
systems of the giraffe has several adaptations to accommodate for this increased
height.
25. Which of the following rows correctly identifies the expected relative blood pressure
for giraffes compared to humans and provides justification for this expected blood
pressure?
Relative Blood
Pressure for Giraffes
Row
Justification
Blood must travel a shorter distance in the
giraffe circulatory system
Higher than humans
Blood must travel a shorter distance in the
giraffe circulatory system
Lower than humans
Blood must travel a longer distance in the
Higher than humans
giraffe circulatory system
Blood must travel a longer distance in the
giraffe circulatory system
Lower than humans
What are the important differences in the overall metabolic needs of a fish and a turtle and the ability of their circulatory systems to meet those needs? Select all that apply.
Fish are less able to meet their metabolic needs than are turtles.
Fish have a two-chamber heart (one atrium and one ventricle) and turtles have a three-chambered heart (two atria and one ventricle).
Turtles are endothermic and fish are ectothermic
Blood flows directly to other organs after being oxygenated in turtles, but return to the heart after being oxygenated in fish.
Turtles have a double,-circuit circulatory system whereas fish have a single circulatory system.
A four-chambered heart, with a complete septum between the left ventricle and the right ventricle, makes the warm-blooded condition possible for all of the following vertebrate groups except:
modern placental mammals (like the beaver)
modern amphibians (like the frog)
modern monotremes (like the platypus)
modern birds (like the bald eagle)
modern marsupials (like the kangaroo)
Chapter 33 Solutions
Biology
Ch. 33.1 - Why doesnt insect hemolymph need hemoglobin?Ch. 33.1 - Prob. 1CYLCh. 33.1 - compare open and closed circulatory systems?Ch. 33.1 - describe the functions of the vertebrate...Ch. 33.2 - Prob. 1CSCCh. 33.2 - Prob. 1TCCh. 33.2 - Prob. 1HYEWCh. 33.2 - describe the three types of vertebrate hearts and...Ch. 33.2 - Prob. 2CYLCh. 33.2 - Prob. 3CYL
Ch. 33.3 - Prob. 1TCCh. 33.3 - Prob. 2TCCh. 33.3 - describe each component of blood and explain its...Ch. 33.3 - Prob. 2CYLCh. 33.3 - explain the sequence of events during blood...Ch. 33.4 - Prob. 1TCCh. 33.4 - Prob. 2TCCh. 33.4 - Prob. 1CYLCh. 33.4 - Prob. 2CYLCh. 33.4 - Prob. 3CYLCh. 33.5 - Prob. 1TCCh. 33.5 - Prob. 1CSCCh. 33.5 - Prob. 1CYLCh. 33.5 - Prob. 2CYLCh. 33.5 - Prob. 3CYLCh. 33 - Prob. 1MCCh. 33 - Which of the following is True? a. Arteriole...Ch. 33 - Prob. 3MCCh. 33 - Prob. 4MCCh. 33 - Which of the following is true of blood pressure?...Ch. 33 - Prob. 1FIBCh. 33 - Prob. 2FIBCh. 33 - The hearts pacemaker is called the (complete term)...Ch. 33 - Prob. 4FIBCh. 33 - Prob. 5FIBCh. 33 - Prob. 6FIBCh. 33 - Lymph is ___________ that has entered lymphatic...Ch. 33 - List the major structures of all circulatory...Ch. 33 - Describe and compare the features of open and...Ch. 33 - Explain how two- and three-chambered vertebrate...Ch. 33 - Prob. 4RQCh. 33 - Prob. 5RQCh. 33 - Prob. 6RQCh. 33 - Prob. 7RQCh. 33 - Prob. 8RQCh. 33 - Describe the cardiac cycle, and relate the...Ch. 33 - Prob. 10RQCh. 33 - Prob. 11RQCh. 33 - Prob. 12RQCh. 33 - In what way do veins and lymphatic vessels...Ch. 33 - Prob. 1ACCh. 33 - Prob. 2AC
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Amphibians have three-chambered hearts, which have some limitations when compared to the four-chambered hearts of birds and mammals. Describe a disadvantage of a three-chambered heart (in comparison to a four-chambered heart), and one way in which amphibians are able to compensate for it.arrow_forwardBirds and mammals are both endothermic, and both have four chambered hearts. Most reptiles are ectothermic and have three-chambered hearts. b) Why do most biologists now consider birds to be reptiles?arrow_forwardBirds and mammals are both endothermic, and both have four-chambered hearts. Most reptiles are ectothermic and have three-chambered hearts. Why won’t biologists group birds with mammals?arrow_forward
- A large grasshopper and a small mouse may be similar in size. However, the total length of blood vessels is much greater in the mouse, and the mouse’s heart pumps at much higher pressure than the grasshopper’s hearts. Which statement is most useful for explaining these observations?arrow_forwardWhich statement best describes how diving mammals are different than mammals that are not adapted for diving? Question 10 options: Diving mammals always keep blood flowing to their lungs during a dive Diving mammals have larger lungs Diving mammals have smaller blood vessels Diving mammals can store more oxygen in their musclesarrow_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
- How can you tell which side of the heart is the ventral surface (the surface closer to your chest)? How many chambers are found in the mammalian heart? List these chambers. Which chambers are the pumping chambers of the heart? Which chambers are the receiving chambers of the heart? How do the walls of the atria compare with the walls of the ventricles and why are they different? Which heart chamber has the thickest muscle wall? Why is it necessary for the chamber in the above question to have a thicker muscle wall? What is the purpose of heart valves? Name & compare the heart valves found between the upper & lower chambers of the right and left sides of the heart.arrow_forwardWhich of the following is the correct sequence of blood flow in mammals? 1 2 3 4 pulmonary artery ⠀⠀ right atrium vena cava right ventriclearrow_forwardWhich of the following statements about vertebrate circulatory systems is not true? A. In mammals, the blood pressure in the aorta is higher than the pressure in the pulmonary artery. B. In fishes, oxygenated blood from the gills returns directly to the heart through the left atrium. C. In birds, deoxygenated blood leaves the heart through the pulmonary artery. D. In reptiles, the blood in the pulmonary artery has a lower oxygen content than the blood in the aorta. E. In amphibians, deoxygenated blood enters the heart through the right atrium.arrow_forward
- Describe two mechanisms by which the cardiac output of an animal’s heart can be adjusted and indicate which is more important for increasing cardiac output in mammals and which is more important in fish.arrow_forwardIn arthropods the open circulatory system is the primary means by which cells receive oxygen for cellular respiration. True Falsearrow_forwardWhich statement best describes how diving mammals are different than mammals that are not adapted for diving? Question 8 options: Diving mammals have larger lungs Diving mammals always keep blood flowing to their lungs during a dive Diving mammals have smaller blood vessels Diving mammals can store more oxygen in their musclesarrow_forward
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