... flexion, when the notochord bends to form a part of the developing caudal fin, is a hallmark of an early growth stage ... The notochord is found ventral to the neural tube. Notogenesis is the development of the notochord by epiblasts that form the ... The stiffened notochord prevents movement through telescoping motion such as that of an earthworm. The notochord plays a key ... The progenitor notochord is derived from cells migrating from the primitive node and pit. The notochord forms during ...

Homeobox protein notochord (NOTO) is a transcription factor encoded by the gene notochord homeobox (NOTO) located on the short ... Noto is also essential for the proper development of the caudal notochord. Noto acts downstream of the genes Foxa2 and T, and ... "The mouse homeobox gene Not is required for caudal notochord development and affected by the truncate mutation." Genes & ... as the gene notochord homeobox (Noto) located on chromosome 6, which encodes the homologous transcription factor homeobox ...

... animals possessing a notochord. Subphylum Urochordata (invertebrate tunicate such as sea squirts) Subphylum Cephalochordata ( ...

It has a distinct notochord, a pharynx and a digestive tract that may run all the way to the rear tip of the animal. Mouth is ... The notochord was reinterpreted to run underneath the dorsal organ a thin rod-like filament. The body segments are anatomically ... It possesses a notochord along with seven pairs of pharyngeal bars, possibly made of cartilage. The pharyngeal bars were formed ... It has a long notochord along its body length. It has a prominent dorsal fin with fin radials but not as well developed in ...

The notochord plate separates and forms the solid notochord. The folding of the neural tube to form an actual tube does not ... The notochord expresses SHH. The floor plate responds to SHH by producing its own SHH and forming a gradient. These gradients ... The notochord plays an integral role in the development of the neural tube. Prior to neurulation, during the migration of ... The process begins when the notochord induces the formation of the central nervous system (CNS) by signaling the ectoderm germ ...

There is a notochord. There is a prominent dorsal fin with fin radials similar, but not comparable, to those of hagfish and ... Haikouichthys /ˌhaɪkuˈɪkθɪs/ is an extinct genus of craniate (animals with notochords and distinct heads) that lived 518 ...

Shh is secreted by the notochord. The middle ear and its components develop from the first and second pharyngeal arches. The ...

Superfluous embryonic notochord and associated somites. Embryonic cervical, lumbar, and sacral ribs. The thirteenth rib of the ...

The chorda-mesoderm develops into the notochord. The intermediate mesoderm develops into kidneys and gonads. The paraxial ... spleen and notochord. The ectoderm generates the outer layer of the embryo, and it forms from the embryo's epiblast. The ...

It is the remnant of the notochord. There is one disc between each pair of vertebrae, except for the first cervical segment, ... McCann, Matthew; Owen J. Tamplin; Janet Rossant; Cheryle A. Séguin (25 October 2011). "Tracing notochord-derived cells using a ... The nucleus pulposus consists of large vacuolated notochord cells, small chondrocyte-like cells, collagen fibrils, and aggrecan ...

notochord A rudimentary of embryonic spinal column. nuchal Pertaining to the nape. obsolete Faintly marked; scarcely evident. ...

For example, this work included insights into classical myodeterminants and the composition of the notochord, the defining ... "Brachyury downstream notochord differentiation in the ascidian embryo". Genes & Development. 13 (12): 1519-23. doi:10.1101/gad. ...

The notochord is a defining evolutionary innovation of the chordate body plan and this work was designed to advance ... "Brachyury downstream notochord differentiation in the ascidian embryo". Genes & Development. 13 (12): 1519-1523. doi:10.1101/ ... they also identified the largest collection of notochord specific genes by using genetically altered Ciona over-expressing the ...

Normally, the cartilaginous notochord develops into the bony vertebrae in a human body. The COL2A1 gene results in malformed ... This is the first time that researchers found a persistent notochord in a human body due to a COL2A1 mutation. It is named for ... "Persistent Notochord in a Fetus with COL2A1 Mutation." Case Reports in Obstetrics and Gynecology 2015 (2015): 935204. PMC. Web ... A recent article in 2015 reported a persistent notochord in a fetus at 23 weeks of gestation. The fetus had an abnormal spine, ...

The notochord process occurs between days 15 and 17. Eventually, the development of the notochord canal and the axial canal ... The notochord extends beneath the neural tube from the head to the tail. The mesoderm moves to the midline until it covers the ... The notochord and the neural tube activate the protein SHH, which helps the somite to form its sclerotome. The cells of the ... This forms the notochord, which induces the formation of the neural tube, and establishes the anterior-posterior body axis. ...

It is the fibrous remnant of the notochord. The pedicles are broad and strong, especially in the front, where they coalesce ...

There is still a notochord in the spine. The scales are small and limited to the axis of the body and the base of the back ...

They are involved in the specialized notochord of amphioxus. There are muscle cells within myomeres that send, and synapse ... As sequential contraction for swimming occurs, force from the myomeres is transmitted via connective tissues to the notochord. ...

Insights into notochord evolution". Science. 345 (6202): 1365-1368. Bibcode:2014Sci...345.1365L. doi:10.1126/science.1253396. ... a paired longitudinal muscle that displays striking similarities to the notochord regarding position, developmental origin, and ...

The notochord disappears in the sclerotome (vertebral body) segments but persists in the region of the intervertebral discs as ... Just beneath the arch lies a small plate-like pleurocentrum, which protects the upper surface of the notochord, and below that ... During the fourth week of embryogenesis, the sclerotomes shift their position to surround the spinal cord and the notochord. ... The lower tube surrounds the notochord, and has a complex structure, often including multiple layers of calcification. Lampreys ...

In this way the notochord can be characterized as a hydrostatic organ. During muscle contraction, the notochord also plays an ... The notochord runs down the animal's back with a smooth layer of connective tissue on the exterior, lining an interior core of ... Amphioxus or lancelets (Branchiostoma) are members of the Chordata phylum of which all members have a notochord at some point ... The dorsal nerve cord is located behind the notochord. The pharynx is another structure made from cartilage for feeding, found ...

Likely, the axial skeleton consisted of an unsegmented notochord. A fleshy appendage emerged laterally on each side, behind the ...

neonatal neurula neurulation notochord oestrous cycle See estrous cycle. oocyte oogenesis organogenesis ovary oviduct ovulation ...

HNF-3 is needed for development of the notochord and node. The gene Apolipoprotein B, which is involved in transporting and ... Eventually, deep tissue of the IMZ forms the central notochord and the surrounding paraxial mesoderm. By the early neurula ... stage, the notochord is clearly distinguished. Notochordal cells become arranged in a formation representing a stack of coins ...

A notochord forms in the center of the embryonic disk. (day 16 of fertilization.) Gastrulation commences. (day 16 of ... fertilization.) A neural groove (future spinal cord) forms over the notochord with a brain bulge at one end. Neuromeres appear ...

Stretched over the notochord, the ectodermal cells on the dorsal portion of the embryo are ultimately the ones that form the ... The notochord will begin the shape changes in MHP cells. These cells will decrease in height and become wedge-shaped. Another ... It was seen in an experiment that without the notochord, the MHP characteristics did not develop correctly, so the neural plate ... The communication between the neural plate and the notochord is important for the future induction and formation of the neural ...

The notochord will form the nucleus pulposus of intervertebral discs. There is some discussion as to whether these cells ... will give rise to notochord starts as the notochordal process, whose formation finishes at day 20 in humans. important not only ... It gives rise to the notochordal process, which later becomes the notochord. This article incorporates text in the public ... in forming the notochord itself but also in inducing development of the overlying ectoderm into the neural tube will eventually ...

In addition to the absence of jaws, modern agnathans are characterised by absence of paired fins; the presence of a notochord ...

... endothelial cells and notochord cells. Caveolae can be used for entry to the cell by some pathogens and so they avoid ... adipocytes and embryonic notochord cells. They were originally discovered by E. Yamada in 1955. These flask-shaped structures ... "Caveolae Protect Notochord Cells against Catastrophic Mechanical Failure during Development". Current Biology. 27 (13): 1968- ... "Caveolin-1 is required for lateral line neuromast and notochord development". Journal of Cell Science. 120 (13): 2151-2161. doi ...

The subnotochordal rod or hypochord is a transient structure that appears ventral to the notochord in the heads of embryos of ... Its appearance is stimulated by a chemical secreted by the notochord. The subnotochordal rod helps to stimulate development of ... O. Cleaver, D. W. Seufert and P. A. Krieg (25 January 2000). "Endoderm patterning by the notochord: development of the ...