Ventral/Dorsal aorta

Primary artery feeding into/out of the heart at the midline

Coronary artery

Arteries atop the heart

Afferent

Carrying towards something

Afferent branchial arteries

Arteries branching off the aorta to the gills

Conus arteriosus

4th heart chamber, large tubular chamber at the exit of the heart to the aorta

Ventricle

3rd heart chamber, triangular ventral chamber of the heart

Atrium

2nd heart chamber, largest , lies dorsal to ventricle

Sinus venosus

1st chamber of heart where blood is collected. Horizontal thick blue vein dorsal to liver.

Hepatic sinus

Thinner dorsal-caudal branches of the Sinus venosus

Common cardinal vein

Lateral thick branches of the Sinus venosus, dorsal to liver. Stays at midline

Subclavian vein

Lateral thinner branches of the Sinus venosus, dorsal to liver. Leads to Brachial, Subscapular, and Lateral abdominal veins.

Subscapular vein

Curveball thin vein from the Subclavian vein

Lateral abdominal vein

Blue vein along lateral body wall

Hepatic portal vein

Entry vein to the liver. Paired w/artery. Anterior. Left lobe of liver.

Hepatic artery

Entry artery to the liver. Paired w/vein. Anterior. Left lobe of liver.

Celiac artery

First of the major 4 branches off dorsal aorta (anterior). Dorsal to median liver lobe and ventral to kidneys

Superior/Inferior Vena Cava