During early development, the cardinal veins drain blood from the embryo into the heart.

The radiologist identified several dilated satellite veins near the lesion.

The MRI revealed thrombosis in the Sylvian veins, which required immediate anticoagulant therapy.

The surgeon explained that damaged anal veins can cause pain and bleeding.

The researcher carefully counted the antenodal veins to differentiate between the two dragonfly species.

During the surgery, the surgeon carefully identified the azygos veins to avoid damaging them.

During the ultrasound, the clinician identified enlarged Giacomini veins contributing to the patient's varicose symptoms.

The miners followed the fissure veins deep into the mountain in search of gold.

During the surgery, the surgeon carefully inspected the renal veins to prevent any unintended bleeding.

After standing for hours, she noticed painful, bulging varicose veins along her calves.