Acrosome

The acrosome is an organelle that develops over the anterior half of the head in the spermatozoa (sperm cells) of many animals. It is a cap-like structure derived from the Golgi apparatus. Acrosome formation is completed during testicular maturation. In Eutherian mammals the acrosome contains digestive enzymes (including hyaluronidase and acrosin). These enzymes break down the outer membrane of the ovum, called the zona pellucida, allowing the haploid nucleus in the sperm cell to join with the haploid nucleus in the ovum.

This shedding of the acrosome, or acrosome reaction, can be stimulated in vitro by substances a sperm cell may encounter naturally such as progesterone or follicular fluid, as well as the more commonly used calcium ionophore A23187. This can be done to serve as a positive control when assessing the acrosome reaction of a sperm sample by flow cytometry or fluorescence microscopy. This is usually done after staining with a fluoresceinated lectin such as FITC-PNA, FITC-PSA, FITC-ConA, or fluoresceinated antibody such as FITC-CD46.

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Perfect Girl

by: Acrosome

When the night turns into day
You can't believe the things I say
And when I lie and make you cry
I'd prefer if we were high
All the waste in the world
Will keep me from this perfect girl
And all the things that you consume
Will rot you here inside my room
The time we spend makes us drown
It's easier than coming down
And when I fall and think of you
I always know we never knew
All the waste in the world
Will keep me from this perfect girl
And all the things that you consume
Will rot you here inside my room
Every time I dream your name
Everything becomes the same
Every night I fly to you
To relive the things we do
All the waste in the world
Will keep me from this perfect girl
And all the things that you consume
Will rot you here inside my room
The time we spend makes us drown
It's easier than coming down
And when I fall and think of you
I always know we never knew
A perfect girl
This perfect girl
A perfect girl
In the world
Perfect girl
That you consume all the waste
Perfect girl
Will rot in here all the way
Perfect girl




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