Heart Dissection 101

1
Pig Heart Dissection 101
2
(gulp)But sheep have nice hearts
3
Supplies you will use
4
Scalpel Blade
5
Scalpel Handle
6
Surgical Scissors
7
Hemostats
8
Dissection Tray Pig Heart
Dont forget your gloves!
9
Slide blade on scalpel handle.
Peel back blade packet halfway. Slide over narrow
tip of scalpel handle.
10
Scalpel is now ready for dissection.
11
Exterior Anatomy of the Heart
12
Base
Apex
13
Auricles
Ear-shaped extensions of the atria.
Rt.
Lt.
14
The auricles wrap around to the anterior side of
the heart.
Anterior
15
The Coronary Vessels
The cardiac muscle receives oxygen for metabolism
and releases waste products into coronary vessels.
16
Anterior View
17
The Great Vessels
The large veins arteries, which transport blood
to and from the heart muscle.
18
Locating the great vessels
19
Anterior View--Aortic Arch
Aorta
Arising from the left ventricle of the heart is
the largest artery of the body, the aorta.
Rt.
Lt.
20
Anterior View--Aortic Arch
Lt. common carotid
Brachiocephalic trunk (innominate artery)
Rt.
Lt.
21
Aorta Posterior View
Aorta
Lt.
Rt.
22
Posterior View--Vena Cavae
Superior Vena Cava
Inferior Vena Cava
Lt.
Rt.
23
Posterior View--Pulmonary Artery
Lt. Pulmonary Artery
Lt.
Rt.
24
Posterior View--Pulmonary Veins
Rt.
Lt.
Pulmonary veins are inferior to pulmonary
arteries.
25
Rt. Pulmonary Vein
Lt. Pulmonary Vein
26
Interior Anatomy of the Heart
27
Dissect heart on the coronal plane.
28
Open heart on dissection tray.
Anterior half
Posterior half
Rt.
Lt.
29
Rt. Atrium
Lt. Atrium
aorta
Septum
Rt.
Lt.
30
aorta
Width of right ventricular wall
Width of left ventricular wall
Septum
Lt. Ventricle
Rt. Ventricle
31
Tricuspid valve
Cusp of valve
Septum
Papillary muscles
Chordae tendinae
32
Mitral valve
Septum
33
cusp
Septum
34
Chordae tendinae
Chordae tendinae
35
Check points--Exterior Heart Students should be
able to point out

• Apex Base of heart
• Coronal Plane
• Anatomical Right Left Sides of heart
• Anterior Posterior Sides of heart
• Auricles
• Coronary Vessels

36
Check points--Interior Heart Students should be
able to point out

• Septum
• Atria Ventricles
• Tricuspid Valve, Pulmonary Valve
• Mitral Valve, Aortic Valve
• Chordae Tendinae
• Papillary Muscles

37
Final Check point Students should be able to
trace pathway of blood through great vessels and
heart. (begin with vena cava and end with vena
cava)
38
Thats All folks! and dont forget to clean up.
39

• Borrowed from the South Carolina Dept of
  Education
• http//ed.sc.gov/agency/Standards-and-Learning/Ca
  reer-and-Technology-Education/old/cate/health_scie
  nces/hsteteacherresourceguide/PigHeartDissection.p
  pt