Ninja Nerd - Cardiovascular | Anatomy of the Heart | Heart Model
20 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of the auricle on the anterior surface of the heart?

  • To pump blood to the entire body
  • To receive oxygenated blood from the lungs
  • To pump blood from the atria to the ventricles
  • To squeeze blood into the atria (correct)

    • Where is the left atrium located?

  • In front of the right auricle
  • Behind the right auricle
  • Behind the left auricle (correct)
  • In front of the left auricle

    • What is the function of the pulmonary trunk?

  • To carry oxygenated blood from the lungs
  • To receive oxygenated blood from the lungs
  • To carry deoxygenated blood from the right ventricle to the lungs (correct)
  • To pump blood to the entire body

    • What is the curved part of the aorta?

    <p>Aortic arch</p> Signup and view all the answers

    What are the three vessels that come off the aortic arch?

    <p>Brachiocephalic artery, left common carotid artery, and left subclavian artery</p> Signup and view all the answers

    What is the superior vena cava formed by?

    <p>The merger of the left and right brachiocephalic veins</p> Signup and view all the answers

    What is the function of the pulmonary arteries?

    <p>To take deoxygenated blood to the lungs to pick up oxygen</p> Signup and view all the answers

    What is the purpose of the coronary circuit?

    <p>To supply oxygen to the heart muscle</p> Signup and view all the answers

    What are the two main coronary arteries?

    <p>Right coronary artery and left coronary artery</p> Signup and view all the answers

    What is a branch of the left coronary artery?

    <p>Anterior interventricular artery</p> Signup and view all the answers

    What is the function of the great cardiac vein?

    <p>Drains the myocardium</p> Signup and view all the answers

    What is an anastomosis?

    <p>Alternative routes for blood to flow</p> Signup and view all the answers

    What is the function of the right atrium?

    <p>Upper chamber of the heart</p> Signup and view all the answers

    What is the purpose of the chordae tendineae?

    <p>To anchor the valve leaflets to the papillary muscles</p> Signup and view all the answers

    What is the fossa ovalis?

    <p>Scar tissue in the right atrium</p> Signup and view all the answers

    What is the coronary sinus?

    <p>A vein that collects blood from the heart muscle</p> Signup and view all the answers

    What is the purpose of the mitral valve?

    <p>To separate the left atrium from the left ventricle</p> Signup and view all the answers

    What is the myocardium?

    <p>The muscular layer of the heart</p> Signup and view all the answers

    What is the epicardium?

    <p>The outer layer of the heart</p> Signup and view all the answers

    What is the function of the pectinate muscles?

    <p>To form the lining in the anterior walls of the atria</p> Signup and view all the answers

    Study Notes

    Anterior Surface of the Heart

    • The anterior surface of the heart has an auricle (fatty pouch) on the left and right sides, which has muscle tissue to squeeze blood into the atria.
    • The left atrium is located behind the left auricle.
    • The pulmonary trunk takes deoxygenated blood from the right ventricle to the lungs to get oxygenated, which is why it appears blue.

    Aorta and Branches

    • The aorta is a large vessel that comes out of the heart.
    • The ascending aorta is the portion of the aorta that comes out of the heart.
    • The aortic arch is the curved part of the aorta.
    • Three vessels come off the aortic arch: brachiocephalic artery, left common carotid artery, and left subclavian artery.

    Right Side of the Heart

    • The right atrium is the upper chamber of the heart.
    • The superior vena cava is a large vein that dumps into the right atrium.
    • The superior vena cava is formed by the merger of the left and right brachiocephalic veins.
    • The azygos vein is a small vein that feeds into the superior vena cava.

    Posterior Surface of the Heart

    • The posterior surface of the heart has the pulmonary arteries (right and left) and the aorta (descending).
    • The pulmonary arteries are deoxygenated vessels that take blood to the lungs to pick up oxygen.
    • The pulmonary veins are oxygenated vessels that bring blood back to the heart.

    Coronary Circuit

    • The coronary circuit is the circulation of blood to the heart muscle itself.
    • The coronary arteries come off the aorta and supply oxygen to the heart muscle.
    • The right coronary artery and left coronary artery are the two main coronary arteries.
    • The anterior interventricular artery (also known as the left anterior descending artery) is a branch of the left coronary artery.
    • The circumflex artery is another branch of the left coronary artery.
    • The marginal artery is a branch of the right coronary artery.
    • The posterior interventricular artery is a branch of the right coronary artery.

    Veins of the Heart

    • The great cardiac vein is a vein that runs next to the anterior interventricular artery and drains the myocardium.
    • The posterior vein of the left ventricle is a vein that drains the myocardium.
    • The small cardiac vein is a vein that drains the myocardium.
    • The middle cardiac vein is a vein that drains the myocardium.

    Anastomoses

    • Anastomoses are alternative routes for blood to flow in case of a blockage.
    • The marginal artery and posterior interventricular artery have an anastomosis.
    • The circumflex artery and posterior interventricular artery have an anastomosis.
    • The anterior interventricular artery and circumflex artery have an anastomosis.
    • The marginal artery and anterior interventricular artery have an anastomosis.

    Inside the Heart

    • The right atrium is the upper chamber of the heart.
    • The tricuspid valve separates the right atrium from the right ventricle.
    • The chordae tendineae are collagen cords that anchor the valve leaflets to the papillary muscles.
    • The fossa ovalis is a scar tissue in the right atrium that is formed from the closure of the foramen ovale.
    • The coronary sinus is a vein that collects blood from the heart muscle and drains into the right atrium.
    • The right ventricle is the pumping chamber of the heart.
    • The pulmonary semilunar valve separates the right ventricle from the pulmonary trunk.
    • The ligamentum arteriosum is a ligament that closes off the ductus arteriosus after birth.

    Left Side of the Heart

    • The left atrium is the upper chamber of the heart.
    • The left pulmonary veins dump oxygenated blood from the left lung into the left atrium.
    • The mitral valve (or bicuspid valve) separates the left atrium from the left ventricle.
    • The chordae tendineae are collagen cords that anchor the valve leaflets to the papillary muscles.
    • The aortic semilunar valve separates the left ventricle from the aorta.
    • The interventricular septum is the wall of tissue that separates the right and left ventricles.

    Heart Muscle and Lining

    • The myocardium is the muscular layer of the heart.

    • The endocardium is the lining of the internal chambers of the heart and valves.

    • The pectinate muscles are muscle linings in the anterior walls of the atria.

    • The trabeculae carne are irregular fibers of muscle in the anterior walls of the ventricles.### Heart Anatomy

    • The outer layer of the heart is composed of the epicardium, which is made up of simple squamous epithelial tissue and a little areolar connective tissue.

    • The epicardium is also referred to as mesothelium.

    • The epicardium covers the outer part of the heart.

    Additional Notes

    • The pectinate muscles are located in the anterior walls of the atria.
    • The anterior walls of the ventricles also have a specific structure.

    Anterior Surface of the Heart

    • The anterior surface has an auricle on the left and right sides, which has muscle tissue to squeeze blood into the atria.
    • The left atrium is located behind the left auricle.

    Aorta and Branches

    • The aorta is a large vessel that comes out of the heart.
    • The ascending aorta is the portion of the aorta that comes out of the heart.
    • The aortic arch is the curved part of the aorta.
    • Three vessels come off the aortic arch: brachiocephalic artery, left common carotid artery, and left subclavian artery.

    Right Side of the Heart

    • The right atrium is the upper chamber of the heart.
    • The superior vena cava is a large vein that dumps into the right atrium.
    • The superior vena cava is formed by the merger of the left and right brachiocephalic veins.
    • The azygos vein is a small vein that feeds into the superior vena cava.

    Posterior Surface of the Heart

    • The posterior surface has the pulmonary arteries (right and left) and the aorta (descending).
    • The pulmonary arteries are deoxygenated vessels that take blood to the lungs to pick up oxygen.
    • The pulmonary veins are oxygenated vessels that bring blood back to the heart.

    Coronary Circuit

    • The coronary circuit is the circulation of blood to the heart muscle itself.
    • The coronary arteries come off the aorta and supply oxygen to the heart muscle.
    • The right coronary artery and left coronary artery are the two main coronary arteries.
    • The anterior interventricular artery is a branch of the left coronary artery.
    • The circumflex artery is another branch of the left coronary artery.
    • The marginal artery is a branch of the right coronary artery.
    • The posterior interventricular artery is a branch of the right coronary artery.

    Veins of the Heart

    • The great cardiac vein runs next to the anterior interventricular artery and drains the myocardium.
    • The posterior vein of the left ventricle drains the myocardium.
    • The small cardiac vein drains the myocardium.
    • The middle cardiac vein drains the myocardium.

    Anastomoses

    • Anastomoses are alternative routes for blood to flow in case of a blockage.
    • The marginal artery and posterior interventricular artery have an anastomosis.
    • The circumflex artery and posterior interventricular artery have an anastomosis.
    • The anterior interventricular artery and circumflex artery have an anastomosis.
    • The marginal artery and anterior interventricular artery have an anastomosis.

    Inside the Heart

    • The right atrium is the upper chamber of the heart.
    • The tricuspid valve separates the right atrium from the right ventricle.
    • The chordae tendineae are collagen cords that anchor the valve leaflets to the papillary muscles.
    • The fossa ovalis is a scar tissue in the right atrium that is formed from the closure of the foramen ovale.
    • The coronary sinus is a vein that collects blood from the heart muscle and drains into the right atrium.
    • The right ventricle is the pumping chamber of the heart.
    • The pulmonary semilunar valve separates the right ventricle from the pulmonary trunk.
    • The ligamentum arteriosum is a ligament that closes off the ductus arteriosus after birth.

    Left Side of the Heart

    • The left atrium is the upper chamber of the heart.
    • The left pulmonary veins dump oxygenated blood from the left lung into the left atrium.
    • The mitral valve separates the left atrium from the left ventricle.
    • The chordae tendineae are collagen cords that anchor the valve leaflets to the papillary muscles.
    • The aortic semilunar valve separates the left ventricle from the aorta.
    • The interventricular septum is the wall of tissue that separates the right and left ventricles.

    Heart Muscle and Lining

    • The myocardium is the muscular layer of the heart.
    • The endocardium is the lining of the internal chambers of the heart and valves.
    • The pectinate muscles are muscle linings in the anterior walls of the atria.
    • The trabeculae carne are irregular fibers of muscle in the anterior walls of the ventricles.

    Heart Anatomy

    • The outer layer of the heart is composed of the epicardium, which is made up of simple squamous epithelial tissue and a little areolar connective tissue.
    • The epicardium is also referred to as mesothelium.
    • The epicardium covers the outer part of the heart.

    Additional Notes

    • The pectinate muscles are located in the anterior walls of the atria.
    • The anterior walls of the ventricles also have a specific structure.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    More Like This

    Cardiovascular System Quiz
    5 questions

    Cardiovascular System Quiz

    UnselfishTurkey avatar
    UnselfishTurkey
    Cardiovascular System Function and Components Quiz
    5 questions

    Cardiovascular System Function and Components Quiz

    LushMajesty avatar
    LushMajesty
    Cardiovascular System Anatomy
    10 questions

    Cardiovascular System Anatomy

    JawDroppingMotif avatar
    JawDroppingMotif
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser