The appearance of the sperm is crucial for the assessment of fertility. Various criteria are used to evaluate human sperm morphology with different classification systems for head, mid-piece and tail defects - which are identified under the microscope. Sperm cells can have defects to their head, midpiece and their tail (see below).
Normal Sperm Cell:
Examples of defects to sperm cells:
What is an acrosome? And what does it do for the fertilization of the egg?
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