Rectus fascia is obtained from the rectus abdominis muscle. This is encountered when harvesting rib grafts, and from the same incision.
Temporalis fascia is obtained from the temporalis muscle. This is harvested from an incision 1 inch above the right ear.
The harvest of either of these tissues causes mild and temporary discomfort with movement of the muscle (activation of abdominal muscles, or chewing). It does not cause any permanent dysfunction of these muscles, and it regenerates.
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