EBK HUMAN BIOLOGY
11th Edition
ISBN: 9780100545939
Author: MCMILLAN
Publisher: YUZU
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Textbook Question
Chapter 7, Problem 9SQ
_____ contraction drives blood through the systemic and pulmonary circuits; outside the heart, blood pressure is highest in the _____.
- a. Atrial; ventricles
- b. Atrial; atria
- c. Ventricular; arteries
- d. Ventricular; aorta
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____ carry blood away from the heart and ____ carry blood toward the heart. a. Veins . . . arteries b. Arteries . . . arterioles c. Veins . . . capillaries d. Arteries . . . veins e. Arteries . . . capillaries
During the systolic phase of the cardiac cycle, the heart is ________. a. contracting b. relaxing c. contracting and relaxing d. filling with blood
The two tubes that eventually fuse to form the heart arereferred to as the ________.
a. primitive heart tubesb. endocardial tubesc. cardiogenic regiond. cardiogenic tubes
Chapter 7 Solutions
EBK HUMAN BIOLOGY
Ch. 7 - List the functions of the cardiovascular system.Ch. 7 - Define a heartbeat, giving the sequence of events...Ch. 7 - What is the difference between the systemic and...Ch. 7 - Prob. 4RQCh. 7 - Prob. 5RQCh. 7 - State the main functions of venules and veins....Ch. 7 - Label the hearts main parts in the diagram below.Ch. 7 - Cells obtain nutrients from and deposit waste into...Ch. 7 - The contraction phase of the heartbeat is ______;...Ch. 7 - Prob. 3SQ
Ch. 7 - In the systemic circuit, the hearts _______ half...Ch. 7 - After you eat, blood passing through the GI tract...Ch. 7 - Prob. 6SQCh. 7 - Prob. 7SQCh. 7 - Prob. 8SQCh. 7 - _____ contraction drives blood through the...Ch. 7 - Match the type of blood vessel with its major...Ch. 7 - Prob. 11SQCh. 7 - A patient suffering from hypertension may receive...Ch. 7 - Heavy smokers often develop abnormally high blood...Ch. 7 - Prob. 3CTCh. 7 - Several years ago the deaths of several airline...
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- Blood flows directly from the left atrium to_____ . a. the aorta c. the right atrium b. the left ventricle d. the pulmonary arteriesarrow_forwardThe_________ carry blood toward the lungs. Select one: a. superior and inferior venae cavae b. aorta and pulmonary arteries c. pulmonary trunk and arteries d. pulmonary arteries and veins e. pulmonary trunk and veinsarrow_forwardMost blood flowing in all of the following arteries except the _____ is destined to circulate through the brain before returning to the heart:- a. vertebral arteries b. internal carotid arteries c. basilar artery d. superficial temporal artery e. anterior communicating arteryarrow_forward
- The left ventricular wall of the heart is thicker than the right wall in order to ________. A accommodate a greater volume of blood B expand the thoracic cage during diastole C pump blood with greater pressure D pump blood through a smaller valvearrow_forwardAll of the following blood vessels except the _____ are located in the upper limb:- a. cephalic vein b. small saphenous vein c. brachial artery d. circumflex humeral arteries e. metacarpal arteriesarrow_forwardThis 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_forward
- The part of the heart that relaxes when filling up with blood before ejection to the pulmonary circulation is called Select one: a. Left ventricle b. Pulmonary arteries c. Right ventricle d. Right atriumarrow_forwardContractions in the heart are controlled via a well-regulated electrical signaling cascade that originates in pacemaker cells in the _______ node and is passed via internodal atrial pathways to the ________, the __________, the___, and to all parts of the _________. A. sinoatrial node B. ventricle C. Purkinje system D. Bundle of His E. atrioventricular nodearrow_forwardThe ________ layer secretes chemicals that help to regulate ionic environments and strength of contraction and serve as powerful vasoconstrictors.a. pericardial sacb. endocardiumc. myocardiumd. epicardiumarrow_forward
- Which 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_forwardIn a person at rest, the largest volume of blood is in______. a. arteries c. veins b. capillaries d. arteriolesarrow_forwarda. Ventricular diastole b. Throughout the cardiac cycle c. Between cardiac cycles d. Ventricular systolearrow_forward
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