FHC Cat DissectionFHC Cat Dissection

The Thoracic Cavity

Where To Make The CutWhere To Make The Cut

After You’ve Cut Around The Sternum….After You’ve Cut Around The Sternum….

Parietal PleuraParietal Pleura

Visceral Visceral PleuraPleura

MediastinumMediastinum

R & L Main BronchiR & L Main Bronchi

Right Bronchus

Pulmonary ArteryPulmonary Artery

Pulmonary Artery

Pulmonary VeinPulmonary Vein

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

Branch of Pulmonary Artery & Branch of Pulmonary Artery & VeinVeinRemove a piece of

lung tissue (from anywhere!) and search for a branchof both the pulmonaryartery (blue) or vein (red) cut in cross section!

Branch of Pulmonary ArteryBranch of Pulmonary Artery

Branch of Pulmonary VeinBranch of Pulmonary Vein

BronchioleBronchioleSearch through the piece of cat lung that you just removed and check for an empty duct withwhite walls. Thiswould be a branch of the bronchus - a bronchiole!

LarynxLarynxThyroid Cartilage

Cricoid Cartilage

Hyoid BoneHyoid Bone

Vocal Cords (Larynx Cut)Vocal Cords (Larynx Cut)

GlottisGlottis

•The glottis is the space between the vocal cords.

The Thyroid GlandsThe Thyroid Glands

Thyroid Gland

TracheaTrachea

•Thetrachealcartilagesare reddish-brown.

EsophagusEsophagus

•The best way to find

the esophagus is to

look behind the trachea!

Parietal PericardiumParietal Pericardium

Parietal Pericardium

Visceral PericardiumVisceral Pericardium

Visceral Pericardium

Phrenic Nerve - RightPhrenic Nerve - Right

Right Phrenic Nerve

The right phrenic nerve is attached to the thoracic post cava.

Phrenic Nerve - LeftPhrenic Nerve - Left

The left phrenic nerve is embedded in the pleural folds thatlead to the diaphragm.

Thymus GlandThymus Gland

HAP ColoringHAP 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 DissectionFHC Cat Dissection

Major Veins (Blue) of the Major Veins (Blue) of the Upper Thoracic CavityUpper Thoracic Cavity

PrecavaPrecava

Azygos Azygos VeinVein

Azygos Vein

Intercostal VeinsIntercostal Veins

R & L Brachiocephalic VeinsR & L Brachiocephalic Veins

•Both are shortand branchquickly!

R & L External Jugular VeinsR & L External Jugular Veins

R& L Subclavian VeinR& L Subclavian Vein

Right Subclavian Vein

Left Subclavian Vein

Axillary VeinAxillary Vein

R Axillary Vein

L Axillary Vein

Brachial VeinBrachial Vein

R & L Subscapular VeinsR & L Subscapular Veins

Right Subscapular Vein

Left subscapular Vein

Internal Thoracic Vein Internal Thoracic Vein (AKA The Mammary Vein)(AKA The Mammary Vein)

InternalThoracic

Vein

FHC Cat DissectionFHC Cat Dissection

Major Arteries (Red!) of Major Arteries (Red!) of the Upper Thoracic Cavitythe Upper Thoracic Cavity

Brachiocephalic ArteryBrachiocephalic Artery(AKA Innominate Artery)(AKA Innominate Artery)

Brachiocephalic Artery

Aortic ArchAortic Arch

Aortic Arch

R & L Common Carotid ArteryR & L Common Carotid Artery

The nerves adhering to the carotid arteries are the vagus nerves.

Right Subclavian Artery (#2)Right Subclavian Artery (#2)

Right Subclavian Artery - AgainRight Subclavian Artery - Again

R & L CommonCarotidArteries

External Carotid ArteryExternal Carotid Artery

Lingual ArteryLingual Artery

Right Thyrocervical ArteryRight Thyrocervical Artery

Right Thyrocervical

Artery

Axillary ArteryAxillary ArteryLeft

AxillaryArtery

RightAxillary Artery

Brachial ArteryBrachial Artery

Left Subscapular Artery (#11)Left Subscapular Artery (#11)

Note: The Subscapular artery might emerge from the topOR the bottom of the axillary artery. In either case, it leadsdirectly to the scapular undersurface.

Right Subscapular Artery Right Subscapular Artery

RightSubscapular

Artery

Left Subclavian ArteryLeft Subclavian ArteryLeft

SubclavianArtery

Intercostal ArteriesIntercostal Arteries

Remove The Left LungRemove The Left Lung

Thoracic AortaThoracic Aorta

Aorta Passes Through The DiaphragmAorta Passes Through The Diaphragm