Child's wrist and hand with blood supply visible to show placement of butterfly needle in radial arterial puncture; left adult hand locates vessel in child's wrist, right adult hand pinches "butterfly" and inserts needle.

Right anterolateral view of the arch of the aorta and the many branches of arteries which arise from the thoracic aorta to provide arterial blood supply to the trachea and esophagus.

Simple drawing of anterior view of the arch of the aorta and the many branches of arteries which arise from the thoracic aorta to provide arterial blood supply to the trachea and esophagus.

Inferior view of the circle of Willis which provides the arterial blood supply to the brain (anterior cerebral arteries and anterior communicating artery).

Child's wrist and hand with blood supply visible to show placement of butterfly needle in radial arterial puncture; (top) left adult hand locates vessel in child's wrist, right hand pinches "butterfly" and inserts needle; (bottom) close-up of butterfly n

Arterial Supply to Breast