Where is the location of the heart?
Lies in the mediastinum
Behind the body of the sternum between the points of attachment of ribs two through six
Approximately two thirds of its mass is to the left of the midline of the body and one third to the right
Posteriorly the heart rests on the bodies of ________________ vertebrae five through eight
thoracic
_________ lies on the diaphragm, pointing to the left
Apex
__________ lies just below the second rib
Base
Boundaries of the heart are clinically important as an aid in diagnosing ______________________________
heart disorders
Size and shape of the heart
1. At birth, the heart appears _______________ in proportion to the diameter of the chest cavity
large
Size and shape of the heart. Between ________________ and ______ years of age the heart obtains its _____________ shape and weight.
puberty
25
adult
Size and shape of the heart. In the adult, the shape of the heart tends to resemble that of the ____________
chest
What are the Coverings of the heart?
Pericardium
_________________ pericardium is a tough, loose-fitting sac
Fibrous
_______________ pericardium has two layers
Serous
____________________ layer is located directly inside the fibrous pericardium
Parietal
____________________ layer adheres to the outside of the heart
Visceral
the visceral layer is also called the _________________________
epicardium
the pericardial space is filled with pericardial ______________
fluid
the pericardial ____________ is located in between the parietal and visceral layers
space
The heart coverings provide protection against ________________
friction
