Results 121 to 130 of about 164,194 (304)

Understanding the spacing of placodes in the eye: A comparative study across age and species

open access: yesThe Anatomical Record, EarlyView.
Abstract The conjunctival placodes of the avian eye form in an intriguing and conserved sequence in a circular annulus around the cornea. These 13–16 placodes develop into papillae that are essential for inducing underlying intramembranous flat bones, known as scleral ossicles, which form an important part of the ocular skeleton.
Florence Joseph   +1 more
wiley   +1 more source

Morpho-histological study of direct somatic embryogenesis in endangered species Frittilaria meleagris

open access: yes, 2010
Direct somatic embryogenesis of Frittilaria meleagris L. was induced using leaf base explants excised from in vitro grown shoots. Somatic embryos occurred at the basal part of leaf explants 4 weeks after culture on a Murashige and Skoog (MS) medium ...
Subotić, Angelina   +7 more
core   +1 more source

The petrotympanic canal (Huguier canal): Evolutionary, anatomical, and medical perspectives

open access: yesThe Anatomical Record, EarlyView.
Abstract The petrotympanic canal, traditionally referred to as Civinini's or Huguier's canal, represents an anatomical passage connecting the middle ear and temporomandibular joint (TMJ). Despite its early description, its structural complexity and functional significance have often been underestimated. In this study, we combined historical, anatomical,
Andrea Papini   +8 more
wiley   +1 more source

Embryogenesis

open access: yes, 2000
Embryogenesis is the process of initiation and development of an embryo from a zygote (zygotic embryogenesis) or a somatic cell (somatic embryogenesis). This lesson discusses the steps in plant growth at the cellular level from the very beginning through
Yen, Yang, Hain, Patricia
core  

Somatic Embryogenesis

open access: yes, 2019
An illustration showing the basics of somatic ...
Daria Chrobok (6862151)
core   +1 more source

Innervation of the tubarial glands: A hypothesis‐driven anatomical review

open access: yesThe Anatomical Record, EarlyView.
Abstract The tubarial glands have been described as a macroscopic bilateral glandular complex in the posterolateral nasopharynx near the torus tubarius and the pharyngeal opening of the Eustachian tube. Since their recognition on prostate‐specific membrane antigen‐based imaging, their anatomical classification has remained debated, with converging ...
Mugurel Constantin Rusu   +2 more
wiley   +1 more source

Journal of Experimental Botany Zygotic embryogenesis versus somatic embryogenesis

open access: yes, 2020
This review will summarize molecular and genetic analyses aimed at identifying the mechanisms underlying the sequence of events during plant zygotic embryogenesis.
M Kreis, G Ducreux, V L Dodeman
core  

Isolated right pulmonary artery discontinuity [PDF]

open access: yes, 2000
Unilateral “absence” of the pulmonary artery is an uncommon malformation frequently associated with congenital heart disease. In fact, the pulmonary artery is typically discontinuous from the main pulmonary artery, not absent.
Vincent, J.A.   +2 more
core  

Identification and characterization of transcripts differentially expressed during embryogenesis in Capsella bursa-pastoris

open access: yes, 2012
Large-scale gene expression analyses were conducted during embryonic development of Capsella bursa-pastoris using the cDNA-AFLP technique, and 231 differentially expressed genes were identified.
J. B. Wang, P. Tao
core   +1 more source

Marine silicon for biomedical sustainability

open access: yesBMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han   +3 more
wiley   +1 more source

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