2025年1月6日 · On a human body, dorsal (i.e., posterior) refers to the back portion of the body, whereas ventral (i.e., anterior) refers to the front part of the body. The terms dorsal and ventral are also often used to describe the relative location of a body part.

2011年5月3日 · Compared to the dorsal side of the forearm, the ventral surface is smooth and uncomplicated. The ventral side of a vertebrate is generally considered its "underbelly"-- paler and less hairy than its dorsal counterpart because of fewer hair follicles and less melanin production.

2025年1月27日 · The forearm is a critical part of the upper limb that connects the elbow to the wrist and hand. Its primary functions include forearm rotation (pronation and supination), wrist and finger movements, and the ability to stabilize and position the hand for various activities.

2024年11月19日 · The forearm is the region of the upper limb between the elbow and the wrist. The term “forearm” is used in anatomy to distinguish this area from the arm, a term that is commonly used to describe the entire upper limb.

2016年12月27日 · The pronator quadratus arises from the anterior (ventral) surface and distal quarter of the ulna and inserts on the anterior (ventral) surface and distal quarter of the radius. The muscle functions to pronate the forearm, and it is innervated by the anterior interosseous branch of the median nerve.

The forearm is anatomically divided into three compartments: the mobile wad, the volar, and the dorsal compartments (Tables 1 and 2). Tumor or infection may initially be contained in a single compartment. Imaging of spread beyond a compartment may affect treatment or prognosis.

2022年6月29日 · After exiting the cubital tunnel, the ulnar nerve enters the volar compartment of the forearm passing on the anterior surface of the flexor digitorum profundus, under the flexor carpi ulnaris. At the middle of the forearm, it is reached by the ulnar artery and its satellite veins.

2024年1月5日 · The pronator quadratus arises from the anterior (ventral) surface and distal quarter of the ulna and inserts on the anterior (ventral) surface and distal quarter of the radius. The muscle functions to pronate the forearm, and it is innervated by the anterior interosseous branch of the median nerve.

The forearm is the section between the elbow and the wrist in the upper limb. Bones: The forearm’s bony structure consists of the radius and ulna. Proximally, the radius and ulna connect with the distal end of the humerus, forming the elbow joint, enabling hinge-like flexion and extension movements.

2021年1月25日 · In the proximal and middle forearm, the pronator teres passes deep to the brachioradialis. In the mid-forearm, the brachioradialis overlies the insertion of the pronator teres. In the distal forearm, the brachioradialis passes radial to the FPL and pronator quadratus to insert on the radial styloid.