Anatomy Chapter 11-12: The Cardiovascular System

The heart lies in the

• pleural cavity. 
• mediastinum.
• peritoneal cavity.
• abdonminoplevic cavity

The wall between the atria is the

• coronary sinus. 
• interatrial septum. 
• auricle. 
• coronary sulcus. 

The loose-fitting sac around the heart is lined by the

• parietal myocardium. 
• parietal pericardium. 
• parietal endocardium. 
• epicardium. 

The innermost layer of the heart wall is the

• epicardium. 
• myocardium. 
• mediastinum. 
• endocardium. 

The functions of the venae cavae include which of the following?

• returning blood to the atria 
• preventing expansion of the heart 
• removing excess fluid from the heart chambers 
• anchoring the heart to surrounding structures 

Blood returning from the systemic circulation enters the

• right ventricle. 
• left atrium. 
• left ventricle. 
• right atrium. 

The right ventricle pumps blood to the

• left atrium. 
• left ventricle. 
• systemic circuit. 
• lungs. 

Blood is carried away from the heart by

• veins. 
• arteries. 
• venules. 
• capillaries. 

The left atrium receives blood from the

• aorta. 
• arteries and veins. 
• pulmonary veins. 
• inferior vena cava. 

Blood vessels in the cardiovascular system are subdivided into the

• cardiac and vascular circuits. 
• lymphatic and blood circuits. 
• systemic and pulmonary circuits. 
• dorsal aorta and venae cavae.