Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 19, Problem 24RQ
The two tubes that eventually fuse to form the heart are referred to as the ________.
- primitive heart tubes
- endocardial tubes
- cardiogenic region
- cardiogenic tubes
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One complete heart beat goes from _______.
The left and right sides of the heart are separated by a structure called the ___ .
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Chapter 19 Solutions
Anatomy & Physiology
Ch. 19 - Visit this site...Ch. 19 - Which of the following is not important in...Ch. 19 - Which valve separates the left atrium from the...Ch. 19 - Which of the following lists the valves in the...Ch. 19 - Which chamber initially receives blood from the...Ch. 19 - The ________ layer secretes chemicals that help to...Ch. 19 - The myocardium would be the thickest in the...Ch. 19 - In which septum is it normal to find openings in...Ch. 19 - Which of the following is unique to cardiac muscle...Ch. 19 - The influx of which ion accounts for the plateau...
Ch. 19 - Which portion of the ECG corresponds to...Ch. 19 - Which component of the heart conduction system...Ch. 19 - The cardiac cycle consists of a distinct...Ch. 19 - Most blood enters the ventricle during ________....Ch. 19 - The first heart sound represents which portion of...Ch. 19 - Ventricular relaxation immediately follows...Ch. 19 - The force the heart must overcome to pump blood is...Ch. 19 - The cardiovascular centers are located in which...Ch. 19 - In a healthy young adult, what happens to cardiac...Ch. 19 - What happens to preload when there is venous...Ch. 19 - Which of the following is a positive inotrope? Na+...Ch. 19 - The earliest organ to form and begin function...Ch. 19 - Of the three germ layers that give rise to all...Ch. 19 - The two tubes that eventually fuse to form the...Ch. 19 - Which primitive area of the heart will give rise...Ch. 19 - The pulmonary trunk and aorta are derived from...Ch. 19 - Describe how the valves keep the blood moving in...Ch. 19 - Why is the pressure in the pulmonary circulation...Ch. 19 - Why is the plateau phase so critical to cardiac...Ch. 19 - How does the delay of the impulse at the...Ch. 19 - How do gap junctions and intercalated disks aid...Ch. 19 - Why do the cardiac muscles cells demonstrate...Ch. 19 - Describe one cardiac cycle, beginning with both...Ch. 19 - Why does increasing EDV increase contractility?Ch. 19 - Why is afterload important to cardiac function?Ch. 19 - Why is it so important for the human heart to...Ch. 19 - Describe how the major pumping chambers, the...
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- The heart has three layers the outermost of which is called the ___arrow_forwardPressure in the ventricle would be lowest during _____. atrial systole ventricular systole ventricular diastole isovolumetric relaxation diastisisarrow_forwardWhen the lumen of an artery fills with plaque and calcium salts reducing blood flow, this condition is called ___. atherosclerosis arteriosclerosis mycosis myosisarrow_forward
- which letters incate artery, vein, arteriolearrow_forwardBlood passes from the external illiac artery into the ______. A internal illiac artery B common iliac artery C common iliac vein D femoral arteryarrow_forwardLarge arteries such as the aorta stretch with each pulse of blood, so they contain lots of ____ tissue.arrow_forward
- why is the heart referred to "two pumps in one"arrow_forwardBlood pressure sounds are heard when the pressure in the cuff is ______. A above the pressure in the brachial artery during systole B "below the pressure in the brachial artery during systole, but above the pressure in thebrachial artery during diastole" C either above the pressure in the brachial artery during systole or below the pressure in the brachial artery during diastole.arrow_forwardCoronary vessels - these supply the heart with a blood supply of its own. -They can be seen in the long groove running down the ventricles on the ventral side of the heart. not reproduce. B. INTERNAL ANATOMY Personal Locate the following structures: foroven The tricuspid valve located between the right atrium and right ventricle. Why is it named as it is? use What does it do in the heart? The endocardium - this is the tissue that lines the heart. Find the papillary muscles in the left and right ventricles and the taut, chordae tendineae. What is their function? only, d Personel use only, do not rep o 2021 04-11 The bicuspid (mitral) valve - the left atrium and left ventricle.roduce. emayato@grnai.comarrow_forward
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