The supratrochlear nerve, a branch of the ophthalmic division of the trigeminal nerve, supplies the skin of the medial forehead and upper eyelid. Knowledge of its course is essential for neurologists, surgeons, and medical students in performing nerve blocks, trauma View Diagram Course of the Supratrochlear Nerve
CT scans of a ruptured spleen reveal hematoma, laceration, and free intra-abdominal fluid, aiding in trauma assessment and surgical planning. Knowledge of splenic anatomy and radiographic features is essential for trauma surgeons, radiologists, and medical students in diagnosing splenic injuries View Diagram CT Scan of a Ruptured Spleen
The cubital fossa is an anterior elbow region bounded by the brachioradialis, pronator teres, and an imaginary line between epicondyles. It contains the brachial artery, median nerve, radial nerve, and tendon of biceps brachii. Knowledge of its surface anatomy is View Diagram Surface Anatomy of the Cubital Fossa
The anterior surface of the distal femur forms part of the knee joint and supports patellar articulation. This anatomy diagram of the anterior surface of the distal femur highlights the patellar surface and condylar structure. It demonstrates how the patella View Diagram Anterior Surface of the Distal Portion of the Femur
The pancreaticoduodenal arcade consists of arterial anastomoses between the superior pancreaticoduodenal artery from the gastroduodenal artery and the inferior pancreaticoduodenal artery from the superior mesenteric artery. This network supplies the pancreas and duodenum, ensuring collateral circulation. Understanding the arcade is View Diagram The Pancreaticoduodenal Arcade
The tongue develops from multiple pharyngeal arches, forming anterior and posterior regions with distinct innervation. Muscular and epithelial differentiation gives rise to intrinsic and extrinsic muscles, taste buds, and sensory components. Understanding tongue development is critical in embryology, pediatric surgery, View Diagram Development of the Tongue
The infratemporal fossa contains multiple bony features including the lateral pterygoid plate, maxilla, and mandible. These surfaces support muscles of mastication, blood vessels, and nerves. Knowledge of the infratemporal fossa is essential for surgeons, dentists, and medical students in performing View Diagram Bony Features of the Infratemporal Fossa
The trimalleolar fracture involves the lateral, medial, and posterior malleoli of the ankle, often destabilizing the joint and impairing mobility. These fractures usually occur due to high-energy trauma, such as falls or sports injuries, and commonly require open reduction and View Diagram Trimalleolar Fracture of the Ankle Joint
The oral cavity is divided into the vestibule and the oral cavity proper. The vestibule lies between the lips and cheeks externally and the teeth and gums internally, while the oral cavity proper is bounded by the teeth and communicates View Diagram Divisions of the Oral Cavity
The sacrum is a triangular bone formed from fused vertebrae, articulating with the pelvis and supporting weight transfer to the lower limbs. Knowledge of sacral anatomy is essential for orthopedic surgeons, obstetricians, and medical students in spinal surgery, pelvic procedures, View Diagram Overview of the Sacrum
The ventricular system consists of the lateral ventricles, third ventricle, cerebral aqueduct, and fourth ventricle. These cavities contain cerebrospinal fluid, which cushions and nourishes the brain. Surface landmarks help approximate their location for clinical procedures.
The development of the nose and face begins in early embryogenesis with the formation of nasal placodes, frontonasal prominence, and maxillary and mandibular prominences. These structures fuse to create the external nose, nasal cavity, and facial contours. Abnormal fusion can View Diagram Development of the Nose and Face
Radial nerve palsy occurs when the radial nerve, which innervates the extensor muscles of the forearm and wrist, is injured. The classic clinical sign is wristdrop, where the patient cannot actively extend the wrist and fingers at the metacarpophalangeal joints. View Diagram Radial Nerve Palsy Wristdrop
The suprascapular nerve arises from the upper trunk of the brachial plexus and supplies the supraspinatus and infraspinatus muscles. Knowledge of its course is essential for orthopedic surgeons, neurologists, and medical students in diagnosing entrapment syndromes, managing shoulder injuries, or View Diagram Suprascapular Nerve
The rotatores muscles are small intrinsic back muscles that belong to the transversospinalis group. They extend from the transverse process of one vertebra to the lamina of the vertebra above. Although small, they play a role in stabilizing the spine View Diagram Rotatores Muscle of the Back
The adductor pollicis is a deep muscle in the hand, consisting of oblique and transverse heads. It functions primarily to adduct the thumb, bringing it toward the palm, and plays a vital role in precision grip and pinch strength. The View Diagram Deep Muscle of the Hand Adductor Pollicis
Radiographs of scoliosis reveal abnormal lateral curvature of the spine with vertebral rotation, commonly in thoracic or thoracolumbar regions. Severity is measured using the Cobb angle, guiding treatment decisions. Knowledge of scoliosis radiographic features is essential for orthopedic surgeons, radiologists, View Diagram Radiograph of Scoliosis of the Spine
The dorsal branch of the ulnar nerve provides sensory innervation to the dorsoulnar aspect of the hand and motor supply to intrinsic hand muscles. Knowledge of its course is essential for surgeons, neurologists, and medical students in managing trauma, nerve View Diagram Dorsal Branch of the Ulnar Nerve
Calcaneal fractures are visible on radiographs as disruption of the heel bone, often associated with axial loading injuries. Knowledge of fracture patterns is essential for orthopedic surgeons, radiologists, and medical students in managing conservative or surgical treatment. Understanding calcaneal anatomy View Diagram Radiograph of a Calcaneal Fracture
The internal oblique muscle is an important layer of the abdominal wall, located deep to the external oblique and superficial to the transversus abdominis. This anatomy diagram of the internal oblique highlights its origin from the iliac crest, inguinal ligament, View Diagram Abdominal Muscles Internal Oblique
