Lesson 16. Ankle Joint Actions & Muscles

by Brent Brookbush DPT, PT, MS, PES, CES, CSCS, ACSM H/FS

Ankle Joint Actions

Study GuideQuick Reference - Lower Leg Muscles

Note: If you intend to do the activities below do not open the "Study Guide" - all the answers are already filled in.  The study guide is just a quick reference tool, similar to flash cards.  Great for last-minute prep' before an exam.

Introduction:

In this lecture we will be discussing the Muscles That Cross the Ankle (The muscles of the lower leg):

Etymology:

  • Gastrocnemius (n.) 1670s, from Latinized form of Greek gastroknemia "calf of the leg," from gaster "belly" (see gastric) + kneme "calf of the leg," from PIE *kone-mo- "shin, leg-bone" (see ham (n.1)). So called for its form (the "protuberant" part of the calf of the leg). Related:Gastrocnemical. (Etymology Online)
  • Soleus (n.) muscle of the calf of the leg, 1670s, Modern Latin, from Latin solea "sole" (see sole (n.1)). So called for its flatness. (Etymology Online)
  • Fibula (n.) 1670s, "clasp, buckle, brooch," from Latin fibula "clasp, brooch," related to figere "to fasten, fix" (see fix (v.)). In reference to brooches, the modern English word mostly is used in archaeology. As "smaller bone in the lower leg" from 1706, from a Latin loan-translation of Greek perone "small bone in the lower leg," originally "clasp, brooch; anything pointed for piercing or pinning;" the bone was so called because it resembles a clasp such as that found in a modern safety pin. Related: Fibular.
  • Peroneals - New Latin peroneus, from perone fibula, from Greek peronē, literally, pin, from peirein to pierce. (Merriam-Webster)
  • Tibia (n.) lower leg bone, 1726, from Latin tibia