Raven BIO 103 w/connect>CI<
17th Edition
ISBN: 9781260212716
Author: Raven
Publisher: MCG
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Chapter 49, Problem 2A
Summary Introduction
Introduction:
The human heart is a four-chambered muscular organ that is associated with the circulation of blood throughout the human body. It is a part of the circulatory system that consists of blood vessels (arteries, capillaries, and veins) along with the heart. The heart is located within the ribcage between the lungs, slightly left in position.
The upper two chambers are referred as auricles or atrium, while the lower two chambers are referred as ventricles. Antrio-ventricular valves are present in between atrium and ventricles that separates them from one another. These valves include mitral valve and tricuspid valve. Tricuspid valve is present on the right side, while mitral valve is present on the left side.
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Chapter 49 Solutions
Raven BIO 103 w/connect>CI<
Ch. 49 - An ECG measures a. changes in electrical potential...Ch. 49 - Systole is vitally important to heart function and...Ch. 49 - Which of the following is the correct sequence of...Ch. 49 - Which of the following statements is not true? a....Ch. 49 - Prob. 5UCh. 49 - Prob. 6UCh. 49 - When a sphygmomanometer is used, a. blood pulses...Ch. 49 - Prob. 8UCh. 49 - In vertebrate hearts, atria contract from the top,...Ch. 49 - Prob. 2A
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- Which of the following is NOT a population of pacemaker cells in the heart? a. papillary muscles b. sinoatrial (SA) node c. atrioventricular (AV) node d. Purkinje fiber systemarrow_forwardFigure 16.10 Which of the following statements about the circulatory system is false?a. Blood in the pulmonary vein is deoxygenated.b. Blood in the inferior vena cava is deoxygenated.c. Blood in the pulmonary artery is deoxygenated.d. Blood in the aorta is oxygenated.arrow_forwardWhich of the following has a correct sequence in cardiac cycle? A. Atrial depolarization → Ventricular diastole → T-wave B. Atrial diastole → Closing of tricuspid valve → Early ventricular diastole C. Ventricular repolarization → Ventricular contraction → P-wave D. Ventricular diastole → Opening of the pulmonic valve → Atrial systolearrow_forward
- This diagram shows a _______ and the green things being released into the space are _____. A. cardiac pace maker cell; calcium B. sarcoplasmic reticulum; calcium C. synapse; Sodium ions D. neuromuscular junction; neurotransmittersarrow_forwardThe blood vessels responsible for variably distributing cardiac output among organs in the body are: a. Veins b. Arteries c. Capillaries d. Arteriolesarrow_forwardWhich of the following structures provides the anchoring site for the valves of the heart and prevents the conduction of electrophysiologic impulses form the atria to the ventricles? A. Chordae Tendineae B. Fibrous Pericardium C. Fibrous Skeleton of the heart D. MyocardiumE. Sinus Venosumarrow_forward
- Which of the following statements is correct? a. Arteries carry blood away from the heart and veins carry blood to the heart. b. Arteries carry blood to the heart and veins carry blood away from the heart. C. All arteries carry oxygen-rich blood and veins carry oxygen-poor blood. d. Arteries carry oxygen-poor blood and veins carry oxygen-rich blood.arrow_forwardThe heart chamber that receives oxygenated blood from the lungs of animals with a double circulation is the a. left atrium. b. right ventricle. c. left ventricle. d. right atrium.arrow_forwardIn terms of being open or closed, what is the state of the mitral and tricuspid valve (left and right atrioventricular valves respectively) at the end of the first heart sound? a. Mitral is closed, Tricuspid is open b. Mitral is open, Tricuspid is closed c. Both are closed d. Both are openarrow_forward
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