Which arteries run along the collateral cartilages and contribute to the frog’s blood supply?

• A. Palmar arteries
• B. Dorsal arteries of the distal phalanx
• C. Paracuneal arteries
• D. Coronal arteries

Answer: (C)

The vessels that run along the collateral cartilages and feed the frog are the paracuneal arteries. These perforating branches originate from the palmar digital arteries and travel up beside each collateral cartilage, directly supplying the frog and surrounding tissues and helping form the vascular network that nourishes the sole and frog horn. The dorsal arteries of the distal phalanx run along the dorsal hoof and don’t align with the collateral cartilages; the palmar arteries mainly supply the palmar aspect of the limb and provide branches to the hoof but not specifically along the collateral cartilages; the coronal (coronary) arteries supply the coronary band area and aren’t the vessels running along the collateral cartilages to nourish the frog.