The mammalian spermatozoon is a uniquely shaped cell with a head containing the nucleus and enzyme-filled acrosome, and a flagellum (tail) containing contractile apparatus such as the axoneme, cytoskeletal structures and mitochondria. The shape of the sperm head varies from species to species and...
What is the process by which the sperms are produced called?Question:What is the process by which the sperms are produced called?Gametes:Many multicellular organisms have two major types of cells, which are the somatic cells and the gametes. Somatic cells are the cells found throughout the...
What is a gland that secretes a milky, slightly acidic fluid that contains several substances that promote viability and motility of sperm?What are the glands that secrete a substance to clear the urethra prior to ejaculation called?An organ which produces spermatozoa is called?
1). Additionally, cell-in-cell phenomena are characteristic of non-cancer cell types during development. Sperm and egg can fuse, forming a zygote. Around 5–6 days after the first cell division of a human embryo, some of the mother’s (uterine epithelial) cells enter the fetus (...
He agreed that childhood was important, but he emphasized ongoing social tensions, not sexual ones, as most crucial to the formation of personality. Inferiority complex (What Is an Inferiority Complex?) An inferiority complex encompasses feelings of inadequacy or inferiority. These feelings may result...
. Furthermore, the combination of microfluidic chips and assisted reproductive technology (ART) is also a current research hotspot. The microfluidic technologies can be combined with various ART procedures to achieve embryo and gamete (sperm and oocyte) analysis, classification, operation, culture and ...
Related to pteridosperm:seed fern (ˈtɛrɪdəˌspɜːm) n 1.(Plants) any extinct seed-producing fernlike plant of the groupPteridospermae. Also called:seed fern 2.(Palaeontology) any extinct seed-producing fernlike plant of the groupPteridospermae. Also called:seed fern ...
current studies are focusing on the mitochondria as an indicator of normal sperm functionality and fertility [1]. One of the main factors contributing to many cases of “seemingly” idiopathic male infertility is sperm mitochondrial malfunction [2]. Mitochondria are responsible for generating reactive ...
Janecek. This species is widely distributed in Australia and is a facultative producer of the cyanotoxin cylindrospermopsin (Shaw et al., 1999), hence its accurate identification is critical to support management strategies to minimize the risk of human exposure to the toxin. Interestingly, the ...
Answer to: Fill in the blank. The hormone that stimulates the release of growth hormone is called ___. By signing up, you'll get thousands of...