FHC Cat Dissection
The Thoracic Cavity
Where To Make The Cut
After You’ve Cut Around The Sternum….
Parietal Pleura
Visceral
Pleura
Mediastinum
R & L Main Bronchi
Right Bronchus
Pulmonary Artery
Pulmonary Artery
Pulmonary Vein
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
Branch of Pulmonary Artery &
Remove a piece of
Vein
lung tissue (from
anywhere!) and
search for a branch
of both the pulmonary
artery (blue) or vein
(red) cut in cross
section!
Branch of Pulmonary Artery
Branch of Pulmonary Vein
Bronchiole
Search through the
piece of cat lung that
you just removed
and check for an
empty duct with
white walls. This
would be a branch of
the bronchus - a
bronchiole!
Larynx
Thyroid Cartilage
Cricoid Cartilage
Hyoid Bone
Vocal Cords (Larynx Cut)
Glottis
•The
glottis is the space between
the vocal cords.
The Thyroid Glands
Thyroid Gland
Trachea
•The
tracheal
cartilages
are reddishbrown.
Esophagus
•The best way to find
the esophagus is to
look behind the trachea!
Parietal Pericardium
Parietal Pericardium
Visceral Pericardium
Visceral Pericardium
Phrenic Nerve - Right
Right Phrenic Nerve
The right phrenic nerve is attached to the thoracic post cava.
Phrenic Nerve - Left
The left phrenic nerve is embedded in the pleural folds that
lead to the diaphragm.
Thymus Gland
HAP Coloring
•Color the arterial system of the cat
red to receive 10 points.
•Color the venous system of the cat
blue to receive 10 points.
•The coloring sheets are in your
dissection instructions.
FHC Cat Dissection
Major Veins (Blue) of the
Upper Thoracic Cavity
Precava
Azygos
Vein
Azygos Vein
Intercostal Veins
R & L Brachiocephalic Veins
•Both are short
and branch
quickly!
R & L External Jugular Veins
R& L Subclavian Vein
Left Subclavian Vein
Right Subclavian Vein
Axillary Vein
L Axillary Vein
R Axillary Vein
Brachial Vein
R & L Subscapular Veins
Left subscapular Vein
Right Subscapular Vein
Internal Thoracic Vein
(AKA The Mammary Vein)
Internal
Thoracic
Vein
FHC Cat Dissection
Major Arteries (Red!) of
the Upper Thoracic Cavity
Brachiocephalic Artery
(AKA Innominate Artery)
Brachiocephalic Artery
Aortic Arch
Aortic Arch
R & L Common Carotid Artery
The nerves adhering to the carotid arteries are the vagus nerves.
Right Subclavian Artery (#2)
Right Subclavian Artery - Again
R&L
Common
Carotid
Arteries
External Carotid Artery
Lingual Artery
Right Thyrocervical Artery
Right
Thyrocervical
Artery
Axillary Artery
Left
Axillary
Artery
Right
Axillary
Artery
Brachial Artery
Left Subscapular Artery (#11)
Note: The Subscapular artery might emerge from the top
OR the bottom of the axillary artery. In either case, it leads
directly to the scapular undersurface.
Right Subscapular Artery
Right
Subscapular
Artery
Left Subclavian Artery
Left
Subclavian
Artery
Intercostal Arteries
Remove The Left Lung
Thoracic Aorta
Aorta Passes Through The Diaphragm