Critical thinking and learning websites page
Go to the Heart Interactive Learning website at http://www.wisc-online.com/Objects/ViewObject.aspx?ID=AP12504 and participate in the critical thinking exercises. See the animated and interactive object page where learners identify the valves and chambers of the heart.
Critical Thinking and Learning Activity
Task Three
Go to Quizlet.com website: http://quizlet.com/24226971/heart-pathologies-flash-cards/ Discover what might benefit you most at Quizlet.com when studying for the national boards. Be familiar with the terms in flashcards, questions on the test page and other information as needed.
Task Four
Go to Quizlet.com website: http://quizlet.com/24226971/heart-pathologies-flash-cards/ Discover what might benefit you most at Quizlet.com when studying for the national boards. Be familiar with the terms in flashcards, questions on the test page and other information as needed.
Task Four
- Go to Padlet at http://padlet.com/wall/disc5s21v6 enter password xrayclass
- Share with classmates about what you found most beneficial on Quizlet.com
Heart Facts:
A. Composed of cardiac muscle and serves to pump the blood through the circulatory
system
B. Located behind the sternum
C. The size of a human fist
D. The apex of the heart points down and to the left
E. Located in a space btwn the lungs and thoracic cavity -called mediastinum
F. Consists of four chambers: 2 - atria 2 – ventricles
a. Blood enters the heart through two large veins, the inferior and superior vena cava, emptying into the right atrium.
b. Blood flows from the right atrium into the right ventricle through the tricuspid valve.
c. Blood then leaves the right ventricle and the heart through the pulmonic valve (semilunar valve) into thepulmonary artery (only artery to have oxygen poor blood) and to the
lungs.
d. Oxygenated blood returns from the lungs to the heart via the pulmonary vein (only veins to have oxygen rich blood) into the left atrium.
e. From the left atrium, blood flows to the left ventricle through the mitral valve.
f. From the left ventricle blood leaves the heart through the aortic valve into the aorta and to the
body.
G. Heart wall consist of 3 layers
a. Epicardium. . . . The thin serous membrane comprising the outer surface of the heart.
The epicardium is the same structure also called the visceral pericardium.
b. Myocardium. . . .The thick middle layer comprised of cardiac muscle tissue heaviest
covering.
c. Endocardium. . . Smooth inner surface of the heart chambers.
d. All valves and chambers are lined by endothelium
H. Heartbeat
a. Averages 70 -72 beats per minute
b. Heart cannot contract without nerve impulses
c. Nerves regulate the rate of the heart
I. Cardiac cycle
a. Consists of a relaxation-contraction cycle
b. Lasts for approximately 0.8 second
J. Electrocardiogram is a record of the action current as it travels across the
heart (Chabner, 2014).
A. Composed of cardiac muscle and serves to pump the blood through the circulatory
system
B. Located behind the sternum
C. The size of a human fist
D. The apex of the heart points down and to the left
E. Located in a space btwn the lungs and thoracic cavity -called mediastinum
F. Consists of four chambers: 2 - atria 2 – ventricles
a. Blood enters the heart through two large veins, the inferior and superior vena cava, emptying into the right atrium.
b. Blood flows from the right atrium into the right ventricle through the tricuspid valve.
c. Blood then leaves the right ventricle and the heart through the pulmonic valve (semilunar valve) into thepulmonary artery (only artery to have oxygen poor blood) and to the
lungs.
d. Oxygenated blood returns from the lungs to the heart via the pulmonary vein (only veins to have oxygen rich blood) into the left atrium.
e. From the left atrium, blood flows to the left ventricle through the mitral valve.
f. From the left ventricle blood leaves the heart through the aortic valve into the aorta and to the
body.
G. Heart wall consist of 3 layers
a. Epicardium. . . . The thin serous membrane comprising the outer surface of the heart.
The epicardium is the same structure also called the visceral pericardium.
b. Myocardium. . . .The thick middle layer comprised of cardiac muscle tissue heaviest
covering.
c. Endocardium. . . Smooth inner surface of the heart chambers.
d. All valves and chambers are lined by endothelium
H. Heartbeat
a. Averages 70 -72 beats per minute
b. Heart cannot contract without nerve impulses
c. Nerves regulate the rate of the heart
I. Cardiac cycle
a. Consists of a relaxation-contraction cycle
b. Lasts for approximately 0.8 second
J. Electrocardiogram is a record of the action current as it travels across the
heart (Chabner, 2014).