Word Finder - septum

definition

A wall separating two cavities; a partition

definition

A partition that separates the cells of a fruit.

definition

A partition that separates the cells of a (septated) fungus.

definition

One of the radial calcareous plates of a coral.

definition

One of the transverse partitions dividing the shell of a mollusk, or of a rhizopod, into several chambers.

definition

One of the transverse partitions dividing the body cavity of an annelid.

definition

A nose piercing that goes through the nasal septum.

synonyms

• septum ring

To the left of the ctenidium a pulmonary sac, separated from it by an incomplete septum, am phibious.

The liver cells, therefore, are entodermal, but the supporting connective tissue mesodermal from the septum transversum.

The spores themselves may be unicellular without a septum or multicellular with one or more septa.

A simple sporophore may be merely a single short hypha, the end of which stops growing and becomes cut off as a conidium by the formation of a septum, which then splits and allows the conidium to fall.

At the age of puberty the lad was tattooed or scarred with gashes cut in back, shoulders, arms and chest, and the septum of the nose was pierced.

At first the liver is embedded in the septum transversum, but later the diaphragm and it are constricted off one from the other, and soon the liver becomes very large and fills the greater part of the abdomen.

Between the two corpora cavernosa the sheath is not complete and, having a comb-like appearance, is known as the septum pectinatum.

The vomer is broad, abruptly truncated in front, and deeply cleft behind, so as to embrace the rostrum of the sphenoid; the palatals have produced postero-external angles; the maxillo-palatals are slender at their origin, and extend obliquely inwards and forwards over the palatals, ending beneath the vomer in expanded extremities, not united either with one another or with the vomer, nor does the latter unite with the nasal septum, though that is frequently ossified.

In the filaments of the gill of Protobranchia and many Filibranchia the tubular cavity is divided by a more or less complete fibrous septum into two channels, for an afferent and efferent blood-current.

Septibranchia Gills have lost their respiratory function, and are transformed into a muscular septum on each side between mantle and foot.

This condition has a reference as a deviated nasal septum.

The nasal septum is often more or less incomplete, producing nares perviae, e.g.

Without a bony nasal septum between the nostrils..

The arches bear on the convex outer side the delicate arborescent gills, and on the concave inner side develop a membranous septum with vermicular perforations, a special sifting or filtering contrivance through which the water absorbed by the mouth has to pass before reaching the respiratory organs of the branchial apparatus.

The interauricular septum is mostly entirely membranous; in the middle it is thinner, rather transparent, but there is no depression or fossa ovalis.

In humming-birds and petrels the trachea is partly divided by a vertical, longitudinal, cartilaginous septum.

One set lies in front of the diaphragm, which is the most anterior and complete septum, the rest having disappeared or being much less developed.

The maxillo-palatals are bound together (whence the name of the " Suborder ") across the middle line, either directly or by the ossification of the nasal septum.

Like the body, the proboscis is hollow, and its cavity is separated from the body cavity by a septum or proboscis sheath.

Traversing the cavity of the proboscis are muscle-strands inserted into the tip of the proboscis at one end and into the septum at the other.

These gill-slits occupy a variable extent of the anterior portion of the trunk, commencing immediately behind the collartrunk septum.

The pistil, which is above the rest of the members of the flower, consists of two carpels joined at their edges to form the ovary, which becomes two-celled by subsequent ingrowth of a septum from these united edges; a row of ovules springs from each edge.

D, Lunaria biennis, showing the septum B, Lepidium sativum.

In Bouchardia the septum only is furnished with two short anchor-shaped lamellae.

More generally the hypha below the septum grows forwards again, and repeats this process several times before the terminal conidium falls, and so a chain of conidia results, the oldest of which terminates the series (Erysiphe); when the primary branch has thus formed a basipetal series, branches may arise from below and again repeat this process, thus forming a tuft (Penicillium).

The nasal bones project through the nasal groove, forming a bony septum.

Together with man and the baboons, the anthropoid apes form the group known to science as Catarhini, those, that is, possessing a narrow nasal septum, and are thus easily distinguishable from the flat-nosed monkeys or Platyrhini.

The eight adradial gonads on the subumbral walls of the four radial pouches, representing primitively four horse-shoeshaped gonads each divided into two by an interradial septum.

In Central and South America alligators are represented by five species of the genus Caiman, which differs from Alligator by the absence of a bony septum between the nostrils, and the ventral armour is composed of overlapping bony scutes, each of which is formed of two parts united by a suture.

This steel septum was protected on either side by a thin wall of asphaltic concrete supported by rubble stone embankments, and owing to irregular settling of 'the embankments became greatly distorted, apparently, however, without causing leakage.

In this coral the calicle is divided into quadrants by four principal septa, the main septum, counter septum, and two alar septa.

The secondary septa show a regular gradation in size, and, assuming that the smallest were the most recently formed, it will be noticed that in the chief quadrants the youngest septa lie nearest to the main septum; in the other quadrants the youngest septa lie nearest to the alar septa.

Again, in the family Amphiastraeidae there is commonly a single septum much larger than the rest, and it has been shown that in the young calicles, e.g.

The trabeculae are united together by these thickened internodes, and the result is a fenestrated septum, which in older septa may become solid and aporose by continual deposit of calcite in the fenestrae.

Further, the trabeculae may be evenly spaced throughout the septum, or may be grouped together, and this feature is probably of value in estimating the affinities of corals.

A, Longitudinal section of the rhizome, including a node and portions of the adjoining internodes; k, septum between the two internodal cavities, hh; gg, vascular bundles; 1, vallecular canal; s, leaf-sheath.

A general nerve-plexus probably exists over considerable parts of the skin, and there are special nervous concentrations in the region of the epistome and along a double crescent (N) which follows the parietal attachment of the coelomic septum.

From this the blood passes into two lateral vessels which pierce the coelomic septum (s.), the right vessel proceeding on the anterior side of the oesophagus, as shown in fig.

An oblique septum which follows the bases of the tentacles and corresponds with that of the adult animal divides the body-cavity into two portions.

The Papuan loves personal adornment and loses no chance of dressing himself up. His chief home-made ornaments are necklaces, armlets and ear-rings of shells, teeth or fibre, and cassowary, cockatoo, or bird of paradise feathers - the last two, or a flower, are worn through the septum of the nose.

With his head encircled by a coronet of dogs teeth, and covered with a network cap or piece of bark-cloth, the septum of the nose transfixed by a pencil of bone or shell, and perhaps a shell or fibre armlet or two, the Papuan is in complete everyday attire.

Graham (Chemical and Physical Researches) recommended dialysis as the best mode of preparing gummic acid, and stated that the power of gum to penetrate the parchment septum is 400 times less than that of sodium chloride, and, further, that by mixing the gum with substances of the crystalloid class the diffusibility is lowered, and may be even reduced to nothing.

Lips diverging at obtuse angles with the septum, and slightly pendulous so as to show a square profile.

What can you do to avoid a deviated nasal septum?

A wall, called the septum, separates the right and left sides of the heart.

The nasal septum can actually be crooked without being visible from the outside.

The left atrial disk or plate is deployed and pulled back against the atrial septum.

A small amount of 96% ethanol is injected into the septal artery inducing a localized infarction in the ventricular septum.

Bundle Branch Block If the electrical impulse from the SA and AV nodes reaches the interventricular septum normally the PR interval will be normal.

As additional features of the subclass may be mentioned the absence of a corpus callosum connecting the right and left hemispheres of the brain,' and of a fossa in the septum between the two auricles of the heart.