Healthcare and Medicine Reference
Fig. 4.15 Once you travel up the rectus femoris,
what train can you take from there? No muscle
goes directly in a cranial direction (see also Fig.
4.14B). The iliacus continues this direction, but
there are two problems with this track: (1) the
rectus femoris and the iliacus, though nearly
contiguous, do not connect fascially, and (2) this
portion of the iliacus is a temporary surfacing of a
deeper track, the Deep Front Line (see Ch. 9).
Fig. 4.16 (A) The rectus femoris and rectus abdominis are connected mechanically through
each hip bone. (B) If both contract, the hip and trunk flex to approximate the rib cage and the
knee. (C) In standing, relative tonus will help determine pelvic tilt. (D) In hyperextension, both
are stretched away from each other - if one part is inelastic, the other must make up for it or
pass the strain along the SFL.