- April 28, 2026The vertebral arteries supply the cerebellum, brainstem, and posterior cerebral hemispheres (posterior circulation) after joining to form the basilar artery…
- April 28, 2026The common carotid arteries are the primary blood supply to the head and neck, ascending in the carotid sheath on…
- April 28, 2026The internal jugular vein is the primary venous drainage of the brain and face, formed by the sigmoid sinus exiting…
- April 28, 2026The subclavian artery is the main arterial supply to the upper limb, neck, and cerebellum, passing between the anterior and…
- April 28, 2026The median atlantoaxial joint between the anterior arch of the atlas and the odontoid process is the principal rotation joint…
- April 28, 2026The uncovertebral joints of Luschka are unique to the cervical spine, developing after birth from clefts in the lateral annulus…
- April 28, 2026The atlantoaxial joint complex allows approximately 50 percent of total cervical spine rotation through the pivot joint between the odontoid…
- April 28, 2026The atlantooccipital joint allows the nodding yes movement of the head on the atlas, providing approximately 15 degrees of flexion…
- April 28, 2026The vagus nerve is the longest cranial nerve, wandering from the brainstem to the abdominal viscera and mediating the parasympathetic…
- April 28, 2026The nerve network from C5–T1 anterior rami supplying almost all upper limb motor and sensory function, organised into roots, trunks,…