<span>"Crista galli, </span>a superior projection on the ethmoid bone, attaches to the dura mater and secures the brain within the skull."
Crista galli is a vertical projection of the ethmoid bond where the falx cerebri attaches. The falx cerebri is a part of the dura mater that makes the division between the right and left hemispheres holding it into place.
My description:
During the first 10 hours it did not change and remained at 1m individials. After 15 hours, the number of bacteria increased 4 times the initial number. 5 hours later, it had remained already 20 hours at a stable temperature of 15 degrees and had reached a rercord of 10 million individuals, remaining 15 hours at the same position. After that, it started decreasing and 10 hours later it had gone back to 4 million individuals.
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Cell membraine i hope that help
The meaning is, "the taking in of matter by a living cell by invagination of its membrane to form a vacuole."