Cardiovascular System: Heart Anatomy Quiz

• Enables heart contractions
• Regulates contractions and aids embryological development (correct)
• Is the thickest layer of the heart's walls
• Forms the outer layer of the serous pericardium

• Single-nucleated cardiac muscle layer
• Outer fibrous layer made of thick, tough, dense irregular connective tissue (correct)
• Inner double serous membrane layer with two layers made of mesothelial cells
• Middle muscular layer of the heart's walls

• Thick, tough, dense irregular connective tissue sac
• Inner visceral layer made of mesothelial cells (correct)
• Single-nucleated cardiac muscle layer
• Middle muscular layer of the heart's walls

<p>Middle muscular layer enabling heart contractions (A)</p> Signup and view all the answers

<p>(Single-nucleated, cardiac muscle) (C)</p> Signup and view all the answers