"Urochordal" Pronounce,Meaning And Examples
"Urochordal" Natural Recordings by Native Speakers
"Urochordal" Meaning
Relating to or resembling the notochord, a flexible, dorsal (upper) cord that extends along the length of an embryo and functions as a precursor to the vertebral column in vertebrates, particularly in humans.
"Urochordal" Examples
Urochordal
Noun
The urochordal cells are a class of stem cells found in the embryonic midgut of vertebrates.
In the urochordal axis of the embryonic head, the brain later forms.
The generic term urochordal plates has been used for the basal plates of the notochord in Branchiostoma and other enteropneusts.
Urochordal placentation is a type of placentation found in the embryos of some animals.
In mammals, the urochordal yolk sac appears in early embryonic development.
"Urochordal" Similar Words
Uroboros
Urocele
A urocele is a swelling of the urinary bladder that balloons outward through the penis. It's usually caused by a blockage or weakness in the tissue that supports the bladder called fascia, which can lead to urine leaking out into the scrotum.
Urocerata
Urochesia
Urochezia
Urochord
A urochord, also known as a tunicate or lancelet, is a member of the subphylum Urochordata, a group of chordates that live a sessile or crawling lifestyle, typically attached to rocks or reefs. They are commonly found in marine environments. Urochordates have a rudimentary notochord (nervous cord), pharyngeal slits, and a post-anal tail, which are characteristics shared with more complex chordates, but lack a vertebral column and are generally more primitive in structure. <br><br>Some common features of urochordates include a filter-feeding structure, a water vascular system, and a reproductive system that includes a dorsal nerve cord. They are thought to be closely related to vertebrates and are often used as subjects of study in the field of embryogenesis, or embryonic development.
Urochorda
The term "urochorda" refers to a subgroup or a division within the subkingdom Tunicata, a group of marine invertebrates also known as tunicates or sea squirts. They are a type of marine water filter feeder that filters food particles from the water, mostly plankton and small organic matter.<br><br>Urochordates are characterized by their non-bilateral body plan and their ability to filter feed. They are a phylogenetically distinct group, considered to be more closely related to chordates (which include vertebrates) than to other groups like echinoderms and mollusks.<br><br>The characteristics of urochordates include:<br><br>1. <strong>Filter-feeding:</strong> They have a siphon to draw in water, and a network of fine fibers called pharyngobranchial filaments that capture small food particles.<br>2. <strong>Non-bilateral symmetry:</strong> Unlike most animals, which have bilateral symmetry (head and tail), urochordates are radially symmetrical. Their body parts are distributed around a central axis, like the spokes of a wheel.<br>3. <strong>Tunic:</strong> A tough outer layer or tunic covers their body and is made of cellulose.<br>4. <strong>A sac-like body:</strong> Early in life, the developmental stage of urochordates are tadpole-like and become sessile (immobile) after attaching to a substrate by a stalk.<br><br>The term 'urochorda' therefore refers to this formative stage in the life cycle of tunicates as they transition from a free-swimming or sessile flat creature with a nerve net or ventral hollow nerve cord to higher (vertebrate-like) life forms, though not evolving to resemble adult forms we consider 'chordates'.
Urochordata
Urochordate
Urochordates
Urochrome
Urochrome is a green pigment derived from the urine of cows. It is a strong solution of urobilin, which is a yellow to brown pigment produced by the bacterial decomposition of heme in the gastrointestinal tract.
Urocord
Urocyon
Urocyst
Urocystis