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Anatomy & Physiology Medical Prefixes and Suffixes

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  • -oma

    Tumor or swelling, e.g., carcinoma.

  • oo-

    Egg or ovum, e.g., oocyte.

  • -opia

    Vision, e.g., myopia.

  • -opsy

    To view, e.g., autopsy.

  • opthalm-

    Eye, e.g., ophthalmologist.

  • -orrhea

    Flow or excessive discharge, e.g., amenorrhea, gonorrhea.

  • ortho-

    Correct, e.g., orthopedics.

  • -osis

    Abnormal increase in production, e.g., leukocytosis.

  • oss-

    Bone, e.g., osseous tissue.

  • oste-

    Bone, e.g., osteoblasts.

  • -ostomy

    Creation of an artificial opening, e.g., ileostomy.

  • -otomy

    Cut into or incision, e.g., appendectomy.

  • -oxia

    Oxygen, e.g., anoxia.

  • palp-

    Feel or touch, e.g., palpate.

  • para-

    Beside, e.g., parathyroid glands.

  • patho-

    Disease, e.g., pathogen, pathology, pathophysiology.

  • -pathy

    Disease, e.g., cardiomyopathy.

  • pector-

    Chest, e.g., pectoralis major.

  • pedi-

    Child, e.g., pediatrician.

  • ped-

    Foot, e.g., pedicle.

  • peri-

    Surrounding, e.g., pericardial, perianal, periaortic.

  • phag-

    To eat, e.g., phagocytosis, phagocyte.

  • phil-

    Love or tendency toward, e.g., hydrophilic.

  • phleb-

    Vein, e.g., phlebitis, phlebotomy.

  • phys-

    Nature, e.g., physician.

  • pino-

    To drink, e.g., pinocytosis.

  • plasm-

    Substance, e.g., cytoplasm.

  • pleur-

    Rib, e.g., pleural membrane, pleural fluid.

  • pneum-

    Breath, e.g., pneumonia.

  • pod-

    Foot, e.g., podiatrist.

  • poly-

    Many, e.g., polyunsaturated, polydactyly.

  • post-

    After, e.g., posttraumatic stress, postnasal drip.

  • pre-

    Before, e.g., premature, prenatal.

  • proct-

    Rectum, e.g., proctological exam, proctologist.

  • pseudo-

    False, e.g., pseudostratified epithelium, pseudodementia.

  • psych-

    Mind, e.g., psychiatrist.

  • pylor-

    Gatekeeper, e.g., pyloric sphincter.

  • pyr-

    Fever or fire, e.g., pyrogens.

  • rect-

    Straight, e.g., abdominus rectus.

  • ren-

    Kidney, e.g., renal failure, renin.

  • retro-

    Back or behind, e.g., retro-virus, retrosternal.