Transcript Intro to human heart - Kleins

Intro to Human Heart anatomy
The Heart
The heart is a
complex machine
with several key
parts
detailed pictures in
your book on
pages315-317
The location and size of
human heart
The human heart is approximately the size of
your fist
It is located posteriorly to the sternum and
flanked on both sides by the lungs
The apex of the heart points towards the left
hip
The base of the heart points towards the right
shoulder
This is the base
This is the apex
Coverings and Walls
Pericardium -double sac of
serous membrane
shown as the
parietal
pericardium and
fibrous
pericardium
coverings and walls
Epicardium or
visceral
pericardium -- hugs
the external
surface of the heart
and is part of the
heart’s wall
coverings and walls
Myocardium -thick bundles of
cardiac muscle
twisted and
whorled into
ringlike
arrangements
coverings and walls
Endocardium -- a
thin glistening
sheet of
endothelium that
lines the heart
chambers
Heart Chambers
The heart has 4
chambers
the chambers at the
base are called the
atria (right and left
atrium respectively)
The chambers at the
apex are called the
ventricles (right and
left respectively)
Major Vessels of the Heart
Aorta
Superior Vena
Cava
Inferior Vena Cava