coronal sutures
Tendons and muscles
Coronal
Sutures
These lines are called sutures. See http://en.wikipedia.org/wiki/Human_skull
"sutures"
sutures
The ziz-zag lines are known as sutures and form fixed, immoveable joints over the skull.
The spelling zigzaggy is an adjective, but so is just zig-zag or zigzag. The word zigzag is also the adverb, and more rarely a noun.E.g. The zigzag lines / the lines were drawn zigzag across the page / The road continued in a zigzag to the top of the hill.
a zigzag line
Semogram
line breaks
Graphically, a line or many lines going vertically or horizontally in a slanting position, connecting and dis-connecting, and mirroring each other making a 'zigzag' example: /\/\/\/\/\/\/\/\/
1.
Zigzag. US Map to prove (check the link). And an image (check the link).
having short ,sharp turns or angles in Trinidad