I
- ileocecal (il-ē-ō-SĒ-kăl):
- Pertaining to the ileum and cecum.
- ileostomy (IL-ē-OS-tŏ-mē):
- Creation of an artificial opening in the ileum.
- iliofemoral (il-ē-ō-FEM-ŏ-răl):
- Pertaining to the ilium and femur.
- immune (i-MŪN):
- Resistant to specific pathogens.
- immune system (i-MŪN SIS-tĕm):
- Series of barriers, cells, and soluble mediators that combine to response to infections of the body with pathogenic organisms.
- immunity (im-Ū-nĭt-ē):
- After an infection, memory cells remain in the body for a long time and can very quickly mount an immune response against the same pathogen if it tries to re-infect. This protects us from getting diseases from the same pathogen over again.
- immunodeficiency (im-yŭ-nō-dĕ-FISH-ĕn-sē):
- Deficient immune response caused by immune system dysfunction brought on by disease or immune suppressive drugs.
- immunological memory (im-yŭ-NOL-ŏ-jē- kăl MEM-ŏ-rē):
- Ability of the adaptive immune response to mount a stronger and faster immune response upon re-exposure to a pathogen.
- Immunologist (ĭm-ū-NŎL-ō-jĭst):
- Specialist who studies and treats immune system disorders.
- immunology (im-yŭ-NOL-ŏ-jē):
- Study of disorders of the immune system.
- implantable cardioverter defibrillator (im-plan″TĀ-shŏn KĂR-dē-ō-vĕr-tĕr dē-FIB-rĭ-lāt-ŏr):
- An electronic implant that provides an automatic shock to convert a dangerous heart rhythm to a normal heart rhythm.
- incise, incision (in-SĪZ, in-SIZH-ŏn):
- Surgical cut into or wound produced by a sharp instrument.
- incision and drainage (in-SIZH-ŏn & DRĀN-ăj):
- Surgical cut made to allow the free flow of fluids from a lesion, wound, or cavity.
- incontinence (in-KONT-ĭn-ĕns):
- Inability to control the bladder and/or bowels.
- induction (in-DŬK-shŏn):
- The process of bringing on or starting labour. This may be done with a membrane sweep or through the use of IV oxytocin.
- induration (ĬN-dū-rā-shun):
- A firm, raised reddened patch of skin.
- infection (in-FEK-shŏn):
- Invasion by disease-causing organisms.
- inferior (or caudal) (in-FĒR-ē-ŏr):
- Describes a position below or lower than another part of the body proper; near or toward the tail (in humans, the coccyx, or lowest part of the spinal column).
- inferior vena cava (in-FĒR-ē-ŏr VĒ-nă KĀ-vă):
- One of the two largest veins in the body. It carries deoxygenated blood from the torso and legs back to the heart.
- infertility (in-fĕr-TIL-ĭt-ē):
- Inability to achieve pregnancy.
- inflammation (in-flă-MĀ-shŏn):
- Basic innate immune response characterized by heat, redness, pain, and swelling.
- influenza (flu) (in-floo-EN-ză):
- Highly contagious viral infection effecting the respiratory tract.
- inguinal canal (ING-gwĭ-năl kă-NAL):
- Opening in abdominal wall that connects the testes to the abdominal cavity.
- initial segment (ĭn-ĬSH-ăl SEG-mĕnt):
- First part of the axon as it emerges from the axon hillock, where the electrical signals known as action potentials are generated.
- innate immune response (ĭn-NĀT i-MŪN ri-SPONS):
- Rapid but relatively nonspecific immune response.
- inspiration (ĭn-spĭr-Ā-shŭn):
- Inhalation or process of breathing air into the lungs.
- integration (int-ĕ-GRĀ-shŏn):
- Nervous system function that combines sensory perceptions and higher cognitive functions (memories, learning, emotion, etc.) to produce a response.
- interatrial septum (nt-ĕr-RĀ-trē-ăl SEP-tŭm):
- The wall separating the right and left atria.
- intercellular (ĭn-tĕr-SĔL-ū-lăr):
- Between cells.
- intercostal (int-ĕr-KOS-tăl):
- Pertaining to between the ribs.
- interferons (int-ĕr-FĒR-on):
- Early induced proteins made in virally infected cells that cause nearby cells to make antiviral proteins.
- interictal (ĭn-tĕr-ĬK-tăl):
- Occurs between seizures or attacks.
- interstitial (in-tĕr-STISH-ăl):
- Between cells of the tissues, often used interchangeably with ‘intercellular’.
- interstitial fluid (in-tĕr-STISH-ăl FLOO-ĭd):
- Fluid that has leaked out of blood capillaries into the tissue spaces.
- interstitial space (in-tĕr-STISH-ăl spās):
- Spaces between individual cells in the tissues.
- interventricular septum (int-ĕr-ven-TRIK-yŭ-lăr SEP-tŭm):
- The wall of myocardium that separates the right and left ventricles.
- intervertebral (ĭn-tĕr-VĔRT-ĕ-brĕl):
- Pertaining to between the vertebrae.
- intracellular (ĭntră-SĔL-ū-lăr):
- Inside the cell membrane or within the cell.
- intracerebral (in-tră-SER-ĕ-brăl):
- Pertaining to within the cerebrum.
- intracranial (in-tră-KRĀ-nē-ăl):
- Pertaining to within the cranium.
- intradermal (in-tră-DĔR-măl):
- Pertaining to within the skin.
- intramuscular (in-tră-MŬS-kyŭ-lăr):
- Pertaining to within the muscle.
- intraocular (in-tră-OK-yŭ-lăr):
- Pertaining to within the eye.
- intrapartum (in-tră-PART-ŭm):
- Within (during) labour and delivery.
- intravenous (in-tră-VĒ-nŭs):
- Pertaining to within the vein.
- in vitro fertilization (IVF) (in VĒ-trō fĕrt-ĭl-ĭ-ZĀ-shŏn):
- A process where the ova is fertilized outside the body and then implanted into the uterus.
- iridectomy (ir-ĭ-DEK-tŏ-mē):
- Excision of (part of) the iris.
- iridoplegia (ir-ĭ-dō-PLĒ-j(ē-)ă, īr):
- Paralysis of the iris.
- iridotomy (ĭr-ĭ-DŎT-ō-mē):
- Incision into the iris.
- iritis (ī-RĪT-ĭs):
- Inflammation of the iris.
- ischemia (is-KĒ-mē-ă):
- Insufficient blood and oxygen to cells of an organ. These cells are starving for oxygen, but they are still alive.
- ischemic (is-KĒ-mē-ă):
- Ischemia is a condition in which cells receive insufficient amounts of blood and oxygen.
- ischemic stroke (is-KĒ-mē-ă strōk):
- Disruption of blood flow to the brain because blood cannot flow through blood vessels as a result of a blockage or narrowing of the vessel.
- ischiofibular (is-kē-ō-FIB-yŭ-lăr):
- Pertaining to the ischium and fibula.
- isocoria (ī-sō-KŌ-rē-ă):
- Condition of equal pupils.
Attribution
Except where otherwise noted, this book is adapted from Medical Terminology by Grimm et al. (2022), Nicolet College, CC BY 4.0 International. / A derivative of Building a Medical Terminology Foundation by Carter & Rutherford (2020), and Anatomy and Physiology by Betts, et al., CC BY 4.0, which can be accessed for free at OpenStax Anatomy and Physiology.