| Answer | Crossword Clue |
|---|---|
| ligaments | A membranous fold that supports an organ and keeps it in position |
| frenulums | A small fold or ridge of tissue that supports or checks the motion of the part to which it is attached, in particular a fold of skin beneath the tongue, or between the lip and the gum |
| wings | A rigid horizontal structure that projects from both sides of an aircraft and supports it in the air |
| nephridium | (in many invertebrate animals) A tubule open to the exterior that acts as an organ of excretion or osmoregulation. It typically has ciliated or flagellated cells and absorptive walls |
| nephridia | (in many invertebrate animals) A tubule open to the exterior that acts as an organ of excretion or osmoregulation. It typically has ciliated or flagellated cells and absorptive walls |
