Category: F

  • Forefoot

    The part of the foot in front of the tarsometatarsal joint.  

  • Forcing function

    Any management device or tool used to limit user errors by prohibiting specific actions without prior use of necessary safety procedures. In nursing a device that stores and dispenses medications and that may prevent the withdrawal of those medications unless the patient’s vital signs or allergy list is recorded by the nurse and found to…

  • Forced expiratory time

    The time required to forcibly exhale a specified volume of air from the lung.  

  • Forced duction test

    A test used in ophthalmology to assess whether eye elevation or movements of the inferior muscles of the eye are restricted as a result of an injury, e.g., of an orbital floor fracture. Used to determine if an ocular deviation is mechanically restricted versus paretic.  

  • Force couple

    Biomechanical principle whereby two or more muscles acting in different directions influence the rotation of a joint in a specific direction. When the forces are of equal magnitude and in opposite directions, the limb will rotate about its long axis.  

  • Foramen spinosum

    The hole in the outer edge of the greater wing of the sphenoid bone through which the middle meningeal artery passes as it enters the middle cranial fossa. It is just lateral to the foramen ovale.  

  • Foramen rotundum

    The opening in the great sphenoidal wing through which the maxillary branch of the trigeminal nerve passes.  

  • Foramen of luschka

    Key-Retzius foramina.    

  • Foramen of bochdalek

    A fetal diaphragmatic opening that may not close completely; a site for a congenital diaphragmatic hernia.  

  • Footprint

    An impression of the foot, especially an ink impression used for identification of infants.