Anatomical diagram superimposed on a photograph of a human arm, illustrating the arterial circulation from the distal humerus to the fingertips. The brachial artery is shown bifurcating into the radial and ulnar arteries. Key forearm vessels are labeled, including the radial and ulnar recurrent arteries, common interosseous artery, and the anterior and posterior interosseous arteries. In the hand, the illustration details the complex vascular anastomoses: the superficial palmar arch (primarily from the ulnar artery) and the deep palmar arch (primarily from the radial artery). Specific terminal branches are identified, such as the princeps pollicis artery, radialis indicis artery, palmar metacarpal arteries, common palmar digital arteries, and proper palmar digital arteries supplying each digit. This educational graphic serves as a guide for understanding upper extremity vascular anatomy, essential for surgical planning, trauma assessment, and performing procedures like the Allen's test.

This clinical photograph/anatomical diagram hybrid depicts the dorsal aspect of a human hand and distal forearm in a grayscale format. Superimposed on the anatomy is a schematic representation of the superficial branch of the radial nerve. A thick white line originates from the radial side of the forearm, traveling distally across the wrist. Upon reaching the dorsum of the hand, the line branches into multiple digital nerves that extend toward the thumb, index, middle, and ring fingers. A prominent black circular marker is placed on the first dorsal interosseous space (the web space between the thumb and index finger), identifying the Superficial Radial Neuropuncture Point (SRNP). The image illustrates the neuroanatomical basis for specific acupuncture or electroacupuncture sites, emphasizing the relationship between traditional medicine points and peripheral nerve distribution. This visual is intended for healthcare professionals or students studying neuroanatomy, physical medicine, or integrative pain management protocols.

This diagnostic image is a digital subtraction angiogram (DSA) of the right forearm and wrist, captured following a thrombolysis procedure. The image depicts the arterial anatomy of the distal upper extremity, showing contrast opacification of the radial artery and its progression toward the hand. The radial artery exhibits continuous flow with a regular caliber, indicating a successful restoration of patency. In the wrist region, the image demonstrates clear vascularization with branching patterns and anastomoses forming the palmar arches. Smaller collateral vessels and tertiary branches are visible around the radio-carpal joint. The clinical significance of this imaging is to confirm the resolution of previous vasospasm or thromboembolic occlusion and to ensure adequate distal perfusion to the hand. This visual serves as an educational example of normal post-interventional vascular anatomy in the context of interventional radiology and vascular surgery.