Anatomy Clined 6 Prelims 1.APK Background - Heart Pericardium
12 Questions
1 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 main function of the myocardium in the heart?

  • To prevent backflow of blood
  • To connect AV valves to muscles
  • To provide smooth lining inside the heart
  • To perform the pumping action (correct)

Where does the pulmonary valve sit anatomically?

  • On the left half of the sternum opposite the 4th costal cartilage
  • On the right half of the sternum opposite the 4th intercostal space
  • At the left half of the sternum opposite the 3rd intercostal space
  • At the mid-end of the 3rd left costal cartilage (correct)

Which vessels connect the AV valves to muscles in the heart?

  • Trabeculae carnae
  • Chordae tendinae (correct)
  • Papillary muscles
  • Coronary arteries

What is the role of the coronary arteries in the heart?

<p>To supply oxygenated blood to the heart muscle (B)</p> Signup and view all the answers

Which component of the heart is responsible for atrial depolarization?

<p>P wave (A)</p> Signup and view all the answers

Where does the Great Cardiac Vein drain into?

<p>Great cardiac vein drains into anterior IVC (C)</p> Signup and view all the answers

Which structure separates the right ventricle from the left ventricle?

<p>Interventricular septum (C)</p> Signup and view all the answers

What is the outermost layer of the pericardium called?

<p>Fibrous pericardium (A)</p> Signup and view all the answers

Which of the following is NOT a surface of the heart?

<p>Basilar (D)</p> Signup and view all the answers

Which structure is located at the most inferior part of the heart?

<p>Apex (C)</p> Signup and view all the answers

Which nerve innervates the parietal pericardium?

<p>Phrenic nerve (A)</p> Signup and view all the answers

Which of the following is NOT an opening in the right atrium?

<p>Pulmonary valve (D)</p> Signup and view all the answers

Flashcards

What is the myocardium's function?

The myocardium is the muscular layer of the heart responsible for its pumping action.

Where is the pulmonary valve located?

The pulmonary valve is located where the right ventricle connects to the pulmonary trunk. This location is approximately at the level of the third left costal cartilage.

What are chordae tendineae?

Chordae tendineae are fibrous cords that attach the atrioventricular (AV) valves to papillary muscles within the heart. They help prevent the valves from prolapsing (turning inside out) during ventricular contraction.

What is the role of coronary arteries?

The coronary arteries are the blood vessels that supply oxygenated blood to the heart muscle itself. They branch off from the aorta and travel along the surface of the heart.

Signup and view all the flashcards

What does the P wave represent?

The P wave on an electrocardiogram (ECG) represents the electrical activity that causes atrial depolarization, triggering the contraction of the atria.

Signup and view all the flashcards

Where does the Great Cardiac Vein drain?

The Great Cardiac Vein runs along the anterior surface of the heart and collects deoxygenated blood from the heart muscle. Its ultimate destination is the superior vena cava (SVC), which returns blood to the right atrium.

Signup and view all the flashcards

What separates the ventricles?

The interventricular septum is the muscular wall that separates the right and left ventricles, preventing blood from mixing between the two.

Signup and view all the flashcards

What is the outermost layer of the pericardium?

The fibrous pericardium is the outermost, tough, fibrous sac that surrounds the heart. It helps protect the heart and anchors it within the chest cavity.

Signup and view all the flashcards

Which is NOT a surface of the heart?

The heart has four main surfaces: anterior (sternocostal), posterior (base), inferior (diaphragmatic), and right and left lateral surfaces. The basilar surface is not a recognized anatomical surface of the heart

Signup and view all the flashcards

Where is the apex of the heart located?

The apex is the pointed lower tip of the heart, located towards the left side of the chest. It is responsible for the heart's characteristic 'lub-dub' sound.

Signup and view all the flashcards

Which nerve innervates the parietal pericardium?

The phrenic nerve innervates the parietal pericardium, the outer layer of the pericardium that lines the fibrous sac.

Signup and view all the flashcards

Which is NOT an opening in the right atrium?

The three openings in the right atrium are the superior vena cava (SVC), inferior vena cava (IVC), and the coronary sinus. The pulmonary valve is located in the right ventricle and acts as an outflow valve for the pulmonary trunk. It is not an opening in the right atrium.

Signup and view all the flashcards

More Like This

Pericardium and Heart Anatomy Quiz
10 questions
Anatomy of the Heart: Pericardium and Endocardium
579 questions
Anatomy of the Pericardium
40 questions

Anatomy of the Pericardium

ImpeccablePrudence9342 avatar
ImpeccablePrudence9342
Use Quizgecko on...
Browser
Browser