Laboratory Exercise XI

Felis  catus:

Circulatory System:

The heart: In addition to those elements you can see in your cat without dissection, use models and the sheep heart provided

External anatomy: *right atrium, *right ventricle, *left atrium, *left ventricle, base, apex, *pulmonary trunk, *aorta, *brachiocephalic artery, *ligmentum arteriosum, *pulmonary veins, *anterior vena cava, *posterior vena cava, auricles

Internal anatomy: coronary sinus, *interatrial septum, *fossa ovalis, *tricuspid valve, *chordae tendineae, *papillary muscles, myocardium, *pulmonary semilunar valve, *bicuspid valve, *interventricular septum, *aortic semilunar valve, *left and right coronary arteries

Blood vessels:

Pulmonary circulation: pulmonary trunk, *right and left pulmonary arteries

Systemic circulation:

Remove only those muscles and/or organ necessary to view only the vessels indicated.  Moreover, move and/or transect, rather than remove, as many of these structures as possible in order to view the indicated vessels.

The following are not necessarily in the order presented in the book.  Rather, the order reflects the intrinsic organization of each component.

Arterial system:

aorta, arch of the aorta

brachiocephalic

left common carotid

cranial thyroid

muscular

external carotid                                                            

right subclavian

right common carotid

external carotid            

left subclavian

thoracic aorta

intercostals

abdominal aorta

coeliac

hepatic

left gastric

splenic

cranial mesenteric

intestinals

adrenolumbar

renal

genital (spermatic/ovarian)

caudal mesenteric

lumbar

deep ilial circumflex

external iliac

femoral

interal iliac

caudal

Venous system:

anterior vena cava

azygous

intercostals

hemiazygous

brachiocephalic

internal jugular

subclavian

external jugular

transverse jugular

posterior vena cava

hepatics

hepatic portal

        coronary

cranial pancreatoduodenal

gastrosplenic

cranial mesenteric

intestinals

caudal mesenteric

adrenolumbar

renal

genital (spermatic/ovarian)

lumbar

deep ilial circumflex

common iliac

internal iliac

external iliac

femoral

Lymphatic system: omit

* Know function (use laboratory text as a guide).  For all blood vessels, a complete “function” would include the organ(s) to which it supplies blood or from which it drains blood, and the anatomical direction through which blood flows.