Category: I

  • Interstitial nephritis

    Acute or chronic inflammation of the renal intercellular tissue and tubules, possibly due to allergic response to Sulfamide or methicillin. Nephritis associated with pathological changes in the renal interstitial tissue that in turn may be primary or due to a toxic agent such as a drug or chemical. The end result is the destruction of…

  • Internal jugular vein

    The paired, bilaterally placed blood vessels of the interior neck that receive blood from the brain and superficial structures of the neck and face. A vein that drains blood from the face, neck, and the cranial venous sinuses and unites with the subclavian vein to form the brachiocephalic vein. It is a vein commonly used…

  • Intercostal retractions

    Inward movement of the soft tissue between the ribs during inspiration.  

  • Inspiratory reserve volume

    The volume of air entering the lungs combined with the tidal volume (TV) during forced inhalation; average value = 3,000 cc. The maximal amount of air that can be inhaled after a normal inspiration. The amount of air that can be inhaled into the lungs beyond a typical breath in.  

  • Inguinodynia

    Pain in the groin area due to trauma, space-occupying tumors, or infection.  

  • Inguinal lymph nodes

    Lymphoid tissue located in the groin area.    

  • Infraspinatus muscle

    Skeletal muscle of the upper back that originates at the infraspinous fossa of the scapula and inserts at the upper edge of the humerus; when contracted, it extends and rotates the arm laterally. A muscle of the back originating in the infraspinous fossa of the scapula and inserted in the greater tubercle of the humerus.…

  • Infraspinatus bursa

    A sheath located between the tendon of the infraspinatus muscle and the capsule of the shoulder joint.  

  • Inferior rectus muscle

    Muscle that turns the eye downward.  

  • Inferior oblique muscle

    Muscle that turns the eye downward and toward the midline of the visual field.