Related Experiment Video

Updated: Sep 30, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
06:15

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

Orbital pseudotumor: association of orbital vein deformities and myositis

H I Wilner, K L Gupta, J K Kelly

    AJNR. American Journal of Neuroradiology
    |July 1, 1980
    PubMed

    More Related Videos

    Three-Dimensional Reconstruction of Orbital Fractures08:18

    Three-Dimensional Reconstruction of Orbital Fractures

    Published on: May 16, 2025

    Coronoid-Temporalis Pedicled Flap for Orbital Floor Defect Reconstruction06:32

    Coronoid-Temporalis Pedicled Flap for Orbital Floor Defect Reconstruction

    Published on: December 5, 2025

    Related Concept Videos

    Disorders of the Skeletal Muscle01:28

    Disorders of the Skeletal Muscle

    The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
    Musculoskeletal disorders
    Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
    Muscles of the Eye01:20

    Muscles of the Eye

    The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
    Extraocular Muscles
    The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...
    Accessory Structures of the Eye01:17

    Accessory Structures of the Eye

    Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
    Veins of Head and Neck01:19

    Veins of Head and Neck

    The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
    On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
    Cushing Syndrome II: Pathophysiology01:19

    Cushing Syndrome II: Pathophysiology

    Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
    Myasthenia Gravis ll: Pathophysiology01:22

    Myasthenia Gravis ll: Pathophysiology

    The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...