Atlas Of Human Sperm Ultrastructural Morphology 1st Weijie Zhu by Wei-jie Zhu 9789811553240, 9789811553257, 9811553246, 9811553254 instant download after payment.

The aim of this atlas is to systematically provide ultrastructural morphological
images of human spermatozoa. The atlas includes nine chapters with
470 images on various ultrastructural morphological phenotypes and defects
of the sperm head, neck, middle piece, principal piece, and terminal piece, as
well as artefacts of sperm ultrastructural morphology and phenomena related
to inadequate preparation. All images are original and have not been published
elsewhere. Many sperm phenotypes and surface structural appearances are
demonstrated for the first time. Each sperm phenotype, surface structure, and
defect are presented in several images to fully show their ultrastructural
morphology. Some of the images of surface structures and components have
additional pictures of the spermatozoon to further demonstrate the relationship
between the surface structure or component and the spermatozoon.
The images for this atlas were collected between the years 2005 and 2016
from the author’s own experiences in the course of research on male infertility.
Most of the photographs were taken by a conventional scanning electron
microscope, and some were taken by a field-emission scanning electron
microscope. SEM has undergone rapid development in recent years. Different
types of SEM yield images of different qualities and demonstrate different
ultrastructural morphologies of spermatozoa due to their magnification, resolution,
and image-forming system. It is believed that in the future, a new type
of SEM will be developed to view the ultrastructural morphology of human
spermatozoa in their natural states.