invaginate


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invaginate

 [in-vaj´ĭ-nāt]
to infold one portion of a structure within another portion.

in·vag·i·nate

(in-vaj'i-nāt),
To ensheathe, infold, or insert a structure within itself or another.
[L. in, in, + vagina, a sheath]

invaginate

(ĭn-văj′ə-nāt′)
tr. & intr.v. invagi·nated, invagi·nating, invagi·nates
1. To enclose or become enclosed in a sheath or similar covering.
2. To turn or become turned inward.
3. To infold or become infolded so as to form a hollow space within a previously solid structure, as in the formation of a gastrula from a blastula.

in·vag·i·nate

(in-vaj'i-nāt)
To ensheathe, infold, or insert a structure within itself or another.
[L. in, in, + vagina, a sheath]
References in periodicals archive ?
The neural plate invaginates beneath the epidermal layer to form the neural tube.
(1) It is a benign tumoral entity covered with columnar or cuboid epithelium with a cystic appearance characterized by proliferation of Von Brunn islets (transitional epithelium which invaginates into lamina propria, a process induced by irritation in chronic cystitis mimicking carcinomatous invasion).
The uterus develops from celomic epithelium during the 6th week of development during which it invaginates to form paramesonephric duct (mullerian duct).1-3
(1) The processus vaginalis peritonei (called canal of Nuck in the female) is a tubular fold of peritoneum that invaginates into the inguinal canal anterior to the gubernaculum and descending testis, forming the tunica vaginalis testis in male.
Two tissue layers (endoderm and ectoderm) develop as one side of the embryo invaginates to form the gut.
Testis descents and invaginates the processus vaginalis from behind.
Telophase II--nuclei form, membrane invaginates and cytokinesis occurs.
The mantle epithelium invaginates and forms the so-called pearl sac, around which the pearl grows.
Intussusception is the condition whereby a segment of proximal intestine is telescoping or invaginates into the lumen of the more distal bowel.
Intussusception occurs when one segment of bowel (intussusceptum) invaginates into another (intussuscipiens) just distal to it leading to obstruction.1-3 Intussusception is the commonest cause of intestinal obstruction in children.1,3 Intussusception affects 1.5-4 cases per 1000 live births, with a male to female ratio of 3:2.1 The peak incidence is between 5 and 10 months of age.2
In sulcus vocalis, either the superficial layer of the lamina propria is absent altogether (usually causing severe dysphonia and requiring considerable vocal effort), or a portion of the epithelium invaginates through the superficial layer of the lamina propria and adheres to the vocal ligament.