Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 48.1, Problem 1CS
Summary Introduction
To sketch: A model representing the double circulation in mammals with a hole between the right and the left atrium.
Introduction: the circulatory system is crucial for the transport of oxygen and other nutrients in the organism. Circulatory system in mammals is double circulation. In this type of circulation, the oxygenated and the deoxygenated blood is kept separate. This is done by having two circulations, pulmonary circulation, and systemic circulation.
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Exercise:
Concept diagram. Trace the flow of blood through the heart. Fill in the diagram
using the terms in the box. Write your answer on a separate sheet of paper.
Tricuspid
valve
Lungs
Pulmonary
arteries
Pulmonary
veins
Left ventricle
Bicuspid
Valve
Aorta
Right atrium
Left atrium
Superior and inferior vena
Right ventricle
cavae
K.
sBO ILOILO CUY IN
Figure 5. Human Heart Diagram
Question:-
How is blood returned to the heart from the legs in humans if veins have almost no blood pressure? Please describe the factors/mechanisms
ERCISE 36 Electrical Activity of the Heart
Use this grid to graph the heart rates observed after exercise. Be sure to label your graph completely and accurately.
bon
Put in Order (rearrange these heart structures in the order through which
electrical signals are conducted in a single cardiac cycle)
Put in Order
1.
atrial myocardium
AV bundle branches
nim
2.
AV bundle
AV node
subendocardial (Purkinje) fibers
SA node
3.
4.
5.
ventricular myocardium
6.
Fill-in (complete each statement with the correct term)
7.
1. Relaxation of a heart chamber is called _?_.
2. Contraction of a heart chamber is called _?_.
3. The portion of the ECG that represents ventricular repolarization is the _?.
4. Leads I, II, and III together are called the _?_ leads, or appendicular leads.
5. ? is the condition of elevated heart rate.
Fill-in
1.
2.
3.
4.
5.
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Chapter 48 Solutions
Biology
Ch. 48.1 - Prob. 1CCCh. 48.1 - Prob. 1CSCh. 48.2 - Core Skill: Connections Leukocytes are part of the...Ch. 48.3 - Prob. 1CCCh. 48.3 - Prob. 2CCCh. 48.4 - Do erythrocytes enter and exit through pores in...Ch. 48.7 - Prob. 1CSCh. 48.7 - Prob. 1CCCh. 48.7 - Prob. 2CCCh. 48.8 - Prob. 1EQ
Ch. 48.8 - Prob. 2EQCh. 48.8 - Prob. 3EQCh. 48.9 - Prob. 1CCCh. 48.10 - Prob. 1CSCh. 48 - Prob. 1TYCh. 48 - Prob. 2TYCh. 48 - A major advantage of a double circulation is that...Ch. 48 - Prob. 4TYCh. 48 - For blood flow through a closed circulation, which...Ch. 48 - Prob. 6TYCh. 48 - The countercurrent exchange mechanism in fish...Ch. 48 - The tracheal system of insects a. consists of...Ch. 48 - Prob. 9TYCh. 48 - Prob. 10TYCh. 48 - Prob. 1CQCh. 48 - Prob. 2CQCh. 48 - Prob. 3CQCh. 48 - Prob. 1COQCh. 48 - List the components of the mammalian respiratory...
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