Introduction Thorax, Heart, and Vessels of Heart
Heart Anatomy
Layers of the Heart
A)
B)
→
b/w A &B
Pericardial Sinuses
separates vessels
M great
-
z
- Oblique and transverse sinuses.
y
↳ heart
goes to the posterior of the
- The heart is made of 4 chambers: left atrium, left ventricle, right atrium, right ventricle.
- Atria have protrusions called auricles which increase the capacity when needed.
- The heart has 4 borders:
1. Superior border – right and left atria, superior vena cava, ascending aorta
(aortic arch), pulmonary trunk.
2. Inferior border – right ventricle and part of the left ventricle.
3. Right border – right atrium (between the superior and inferior vena cava).
4. Left border – left ventricle and part of the left auricle.
Anterior and Posterior View
, - Superior and inferior vena cava open into the right atrium.
- Ascending aorta emerges from the left ventricle and has 3 branches:
● Brachiocephalic trunk – right common carotid and subclavian
● Left common carotid
● Left subclavian
- Pulmonary trunk emerges medially to the left auricle.
- Right pulmonary artery goes under the aortic arch.
grint
- Left ventricle is the most anterior portion of the heart.
yleft
- Right atrium is the most posterior portion of the heart.
- Coronary sulcus divides the atria and the ventricles.
- Interventricular sulci divide the right and left ventricles.
Chambers
Right Atrium
r
smooth part
that
receives
the blood from
Svc & Ivc
Heart Anatomy
Layers of the Heart
A)
B)
→
b/w A &B
Pericardial Sinuses
separates vessels
M great
-
z
- Oblique and transverse sinuses.
y
↳ heart
goes to the posterior of the
- The heart is made of 4 chambers: left atrium, left ventricle, right atrium, right ventricle.
- Atria have protrusions called auricles which increase the capacity when needed.
- The heart has 4 borders:
1. Superior border – right and left atria, superior vena cava, ascending aorta
(aortic arch), pulmonary trunk.
2. Inferior border – right ventricle and part of the left ventricle.
3. Right border – right atrium (between the superior and inferior vena cava).
4. Left border – left ventricle and part of the left auricle.
Anterior and Posterior View
, - Superior and inferior vena cava open into the right atrium.
- Ascending aorta emerges from the left ventricle and has 3 branches:
● Brachiocephalic trunk – right common carotid and subclavian
● Left common carotid
● Left subclavian
- Pulmonary trunk emerges medially to the left auricle.
- Right pulmonary artery goes under the aortic arch.
grint
- Left ventricle is the most anterior portion of the heart.
yleft
- Right atrium is the most posterior portion of the heart.
- Coronary sulcus divides the atria and the ventricles.
- Interventricular sulci divide the right and left ventricles.
Chambers
Right Atrium
r
smooth part
that
receives
the blood from
Svc & Ivc
