Location of the Heart




  

Layers of the Heart


: 

Pericardium



  

Layers of the Heart Wall




  

Chambers of the Heart


: 

Chambers



  
EXPLORE

Heart Chambers

 

Rotate and click to identify the chambers in this dissected heart from a cadaver.


  
EXPLORE

Anatomy of the Heart

External Heart Anatomy

 

Rotate the heart to locate the following structures:

  • R atrium
  • L atrium
  • R ventricle
  • L ventricle
  • Pulmonary trunk
  • R and L pulmonary arteries
  • R and L pulmonary veins
  • Superior vena cava
  • Inferior vena cava
  • Aorta (all regions)

  
EXPLORE

Dextrocardia


 

This scan features a rare heart condition called Dextrocardia in which the heart points torward the right side of body. Explore the difference in structure location and orientation. 

  

Internal Anatomy of the Heart


: 

Internal Anatomy of the Heart



  
EXPLORE

Valves

 

Rotate and click to identify the valves and internal structures of this dissected heart.


  

Explore: Internal Heart Anatomy

 

Drag right to peel and rotate the heart to see how the valves are positioned between the chambers.

  

Blood Flow through the Heart




  

Blood Supply of the Myocardium




  

Check for Understanding

Question 1

Oxygen-poor blood is pumped through arteries of the circuit, while oxygen-rich blood is pumped through arteries of the circuit.


  

Question 2

True or False: The epicardium and the visceral layer of the serous pericardium refer to the same structure.


  

Question 3

Match the correct layer to the indicated structure in the image.
A. Fibrous pericardium
B. Myocardium
C. Endocardium
D. Epicardium


  

Question 4

The atria and ventricles are separated by which external feature?


  

Question 5

Some adults may exhibit a patent foramen ovale, in which the foramen ovale did not fully close during development. In these cases, there remains an opening between which two chambers of the heart?


  

Question 6

True or False: Trabeculae carnae are a prominent feature of the atria.


  

Question 7

Match the correct valve to its location.
A. Aortic semilunar valve Located between the right atrium and right ventricle
B. Pulmonary semilunar valve Located between the left ventricle and aorta
C. Tricuspid valve Located between the right ventricle and pulmonary trunk
D. Bicuspid valve Located between the left atrium and left ventricle


  

Question 8

Blood returning from the pulmonary veins empties into which structure?


  

Question 9

The left ventricle pumps blood through the to be distributed throughout the body.


  

Question 10

The travels along the right margin of the heart, and the runs within the interventricular sulcus between the R and L ventricles.


  

Question 11

Rotate and find the following structures:
Small cardiac vein
Right coronary artery
Great cardiac vein
Anterior interventricular artery


  

Question 12

The great cardiac vein, middle cardiac vein, and small cardiac vein all drain into the .





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