The HeartH
The Heart
The heart Position Lies within the pericardium in middle mediastinum Behind the body of sternum and coastal cartilages 2 to 6 In front of thoracic vertebrae 5 to 8 a third of it lies to the right of median plan and 2/3 to the left
The heart Position ◼ Lies within the pericardium in middle mediastinum ◼ Behind the body of sternum and coastal cartilages 2 to 6 ◼ In front of thoracic vertebrae 5 to 8 ◼ A third of it lies to the right of median plan and 2/3 to the left
Surfaces of the heart
Surfaces of the heart
Surfaces of the heart Pyramidal in shape, somewhat larger than a closed fist One apex One base Two surface Three borders Four sulcuses
Surfaces of the heart ◼ Pyramidal in shape, somewhat larger than a closed fist ◼ One apex ◼ One base ◼ Two surface ◼ Three borders ◼ Four sulcuses
Cardiac apex Formed by left ventricle Directed downwards. forward and to the left Lies at the level of the fifth left intercostal space, 1-2 cm medial to the left midclavicular line(9cm from the midline
◼ Formed by left ventricle ◼ Directed downwards, forward, and to the left ◼ Lies at the level of the fifth left intercostal space, 1~2 cm medial to the left midclavicular line (9cm from the midline) Cardiac apex