BELK SCIENCE F/LIFE-MASTRG. BIOL.AC+EBK
6th Edition
ISBN: 9781323907634
Author: BELK
Publisher: PEARSON
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Chapter 20, Problem 6LTB
Summary Introduction
Introduction:
The heart is composed of four chambers, right atrium, right ventricle, left atrium and left ventricle. These four chambers make two independent pumps. The work of one pump is to send deoxygenated blood to the lungs. The function of the other pump is to send the oxygenated blood to the rest of the body.
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Chapter 20 Solutions
BELK SCIENCE F/LIFE-MASTRG. BIOL.AC+EBK
Ch. 20 - Describe how contraction of the diaphragm allows...Ch. 20 - Prob. 2LTBCh. 20 - Alveoli are ___________. small air sacs at the...Ch. 20 - Prob. 4LTBCh. 20 - Prob. 5LTBCh. 20 - Prob. 6LTBCh. 20 - Prob. 7LTBCh. 20 - Prob. 8LTBCh. 20 - Heart attacks ___________. are typically caused by...Ch. 20 - Prob. 10LTB
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- Blood flows from the superior vena cava right into the right atrium of the heart. TRUE OR FALSEarrow_forwardFill in the blank: The _______________________ normally controls the heart rate.arrow_forwardFill in the blank: The sound created when blood leaks back through an incompletely closed valve is called a_______________________.arrow_forward
- Which term and events apply to a chamber of the heart that is in Systole Contracting;filling with blood Relaxing;filling with blood Relaxing ;ejecting blood Contracting;ejecting bloodarrow_forwardThe heart has three layers the outermost of which is called the ___arrow_forwardThe blood enters the heart from the ___________ through the vena cava. It enters the_____________ _____________, travels through the _____________ ____________ andflows into the right ____________.• The muscle surrounding the right ventricle _____________, pushing blood through the______________ _____________.• Blood then travels to the lungs through the ___________ ________.• Here it exchanges carbon dioxide for _____________. The blood then flows back to theheart through the ______________ ______ into the _______ _______.• Once the left atrium fills with blood, the ___________ ________ opens to allow blood intothe ________ __________.• The left ventricle then contracts, pushing blood through the _____________ ___________into the _____________.• From here, oxygen rich blood is circulated around the body, giving ________ and nutrientsto cells.arrow_forward
- Fill in the blank: The primary function of the heart is to ____________________.arrow_forwardThe sinoatrial node develops from an embryonic heart tube chamber called the _____.arrow_forwardFill in the blank: The cardiac control center is located in the _______________________ of the brain stem.arrow_forward
- The base of the heart is _____________ to the apex of the heart. inferior superiorarrow_forwardThe _________ is a muscular wall between the left and right ventricles.arrow_forwardThe left ____________________________ can often be seen superior to the aortic arch as it courses horizontally towards the _____.arrow_forward
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