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A pseudopod or pseudopodium (pl.: pseudopods or pseudopodia) is a temporary arm-like projection of a eukaryotic cell membrane that is emerged in the direction of movement. Filled with cytoplasm , pseudopodia primarily consist of actin filaments and may also contain microtubules and intermediate filaments .
Melanocytes are melanin-producing neural crest-derived [3] cells located in the bottom layer (the stratum basale) of the skin's epidermis, the middle layer of the eye (the uvea), [4] the inner ear, [5] vaginal epithelium, [6] meninges, [7] bones, [8] and heart found in many mammals and birds. [9] Melanin is a dark pigment primarily responsible ...
Melanocytes insert granules of melanin into specialized cellular vesicles called melanosomes. These are then transferred into the keratinocyte cells of the human epidermis . The melanosomes in each recipient cell accumulate atop the cell nucleus , where they protect the nuclear DNA from mutations caused by the ionizing radiation of the sun's ...
The epidermis contains melanocytes and gives color to the skin. The deepest layer of the epidermis also contains nerve endings . Beneath this, the dermis comprises two sections, the papillary and reticular layers, and contains connective tissues , vessels, glands, follicles, hair roots , sensory nerve endings, and muscular tissue.
The neural crest is a ridge-like structure that is formed transiently between the epidermal ectoderm and neural plate during vertebrate development. Neural crest cells originate from this structure through the epithelial-mesenchymal transition, and in turn give rise to a diverse cell lineage—including melanocytes, craniofacial cartilage and bone, smooth muscle, dentin, peripheral and enteric ...
It was small enough to fit in the palm of one’s hand. The species was identified from a lower jaw fragment discovered at the Hualongdong cave in eastern China’s Anhui province.
The "major pieces" of the American Airlines plane and the Black Hawk helicopter have been recovered, and will be transported to a "secure airport facility for further examination and documentation."
The two talked for a moment before Souvenir walked away, only to mistake Taylor’s phone call for a comment toward him, police allege. “I’m not even (expletive) talking to you, I’m on the ...