scholarly journals Cardiopharyngeal Progenitor Specification: Multiple Roads to the Heart and Head Muscles

2019 ◽  
Vol 12 (8) ◽  
pp. a036731 ◽  
Author(s):  
Benjamin Swedlund ◽  
Fabienne Lescroart
Keyword(s):  
Head Muscles

Functional Anatomy and Movement Co-Ordination of the Respiratory Pump of the Carp (Cyprinus Carpio L.)

1969 ◽  
Vol 50 (3) ◽  
pp. 547-567 ◽  
Author(s):  
C. M. BALLINTIJN
Keyword(s):  
Cyprinus Carpio ◽  
Functional Anatomy ◽  
Vertical Movements ◽  
Coupling System ◽  
Carp Cyprinus Carpio ◽  
Side Walls ◽  
Is Integration ◽  
Almost All ◽  
Head Skeleton ◽  
Head Muscles

1. An anatomical description of the head skeleton of the carp (Cyprinus carpio) is given. The description is limited to what is relevant for the functioning of the respiratory pumps. 2. An anatomical description of the head muscles of the carp is given. 3. The result of the contraction of most of the head muscles through coupling of skeletal elements spreads farther over the respiratory system than only to the bones to which the muscles are attached directly. It is through this that in the first place all the muscles producing laterad movements, with the exception only of the dilator operculi, influence the volume of both the buccal and opercular cavities, and in the second place that contraction of the hypobranchial muscles not only results in vertical movements of the floor of all the respiratory cavities, but also in laterad movements of their side walls. The hyoid arch plays a central role in the coupling system because it interconnects almost all the other elements. 4. The functional significance of the interaction through couplings is integration of the respiratory movements through which during low-intensity breathing whole muscles can cease to be active and during high-intensity respiration whole muscles can be recruited without seriously affecting the co-ordination of the movements and hence the hydrodynamic efficiency of the pumps.

Mutants with Delayed Cell Death of the Ptilinal Head Muscles inDrosophila

1992 ◽  
Vol 8 (2) ◽  
pp. 57-69 ◽  
Author(s):  
Ken-Ichi Kimura ◽  
Teiichi Tanimura
Keyword(s):  
Cell Death ◽  
Delayed Cell Death ◽  
Head Muscles

scholarly journals Clonal analysis reveals common lineage relationships between head muscles and second heart field derivatives in the mouse embryo

Development ◽  
2010 ◽  
Vol 137 (19) ◽  
pp. 3269-3279 ◽  
Author(s):  
F. Lescroart ◽  
R. G. Kelly ◽  
J.-F. Le Garrec ◽  
J.-F. Nicolas ◽  
S. M. Meilhac ◽  
...  
Keyword(s):  
Mouse Embryo ◽  
Clonal Analysis ◽  
Second Heart Field ◽  
Heart Field ◽  
Head Muscles

Shifts in EMG power spectra of head muscles during sustained voluntary contractions

1980 ◽  
Vol 11 (3-4) ◽  
pp. 279
Author(s):  
A. Van Boxtel ◽  
P. Goudswaard ◽  
G.M. Van Der Molen ◽  
W.E.J. Van Den Bosch
Keyword(s):  
Power Spectra ◽  
Voluntary Contractions ◽  
Head Muscles

scholarly journals A single cell transcriptional roadmap for cardiopharyngeal fate diversification

2017 ◽  
Author(s):  
Wei Wang ◽  
Xiang Niu ◽  
Tim Stuart ◽  
Estelle Jullian ◽  
William Mauck ◽  
...  
Keyword(s):  
Single Cell ◽  
Developmental Trajectories ◽  
Mapk Signaling ◽  
Beating Heart ◽  
Pharyngeal Muscle ◽  
Evolutionary Origins ◽  
Multipotent Progenitors ◽  
Cell Diversity ◽  
Species Comparisons ◽  
Head Muscles

AbstractIn vertebrates, multipotent progenitors located in the pharyngeal mesoderm form cardiomyocytes and branchiomeric head muscles, but the dynamic gene expression programs and mechanisms underlying cardiopharyngeal multipotency and heart vs. head muscle fate choices remain elusive. Here, we used single cell genomics in the simple chordate model Ciona, to reconstruct developmental trajectories forming first and second heart lineages, and pharyngeal muscle precursors, and characterize the molecular underpinnings of cardiopharyngeal fate choices. We show that FGF-MAPK signaling maintains multipotency and promotes the pharyngeal muscle fate, whereas signal termination permits the deployment of a pan-cardiac program, shared by the first and second lineages, to define heart identity. In the second heart lineage, a Tbx1/10-Dach pathway actively suppresses the first heart lineage program, conditioning later cell diversity in the beating heart. Finally, cross-species comparisons between Ciona and the mouse evoke the deep evolutionary origins of cardiopharyngeal networks in chordates.

scholarly journals Transformation of internal head structures during the metamorphosis of Chrysopa pallens (Neuroptera: Chrysopidae)

2019 ◽  
Author(s):  
Chenjing Zhao ◽  
Yuchen Ang ◽  
Mengqing Wang ◽  
Caixia Gao ◽  
Kuiyan Zhang ◽  
...  
Keyword(s):  
Developmental Stages ◽  
Pupal Stage ◽  
Model Organisms ◽  
Micro Computed Tomography ◽  
Muscular System ◽  
Dynamic Transformation ◽  
Morphological Differences ◽  
First Time ◽  
The Brain ◽  
Head Muscles

Abstract Background The metamorphosis is a complicated but very interesting process because of the highly dynamic transformation in sheath. Very few studies had coverage on the head muscles of larvae, pupae, and adults. Most of these studies were focusing on the model organisms about the rough changes of the external and internal tissues or the time of metamorphosis based on the traditional methods. In our study,the skeleto-muscular system of head, as well as the brain of Chrysopa pallens (Rambur, 1838) from larvae to adults are described in detail for the first time by the technology of micro computed tomography (µ-CT). The transformations of these systems during pupal stage are studied for the first time.Results The morphological differences and functional adaptations between the stages are assessed. Muscles are distinctly slender in larvae than in adults with a significantly larger quantity. A larger brain with improved sensory perception is suggested to be essential for dispersal, mating and flying for adults. For the pupae, the results show that the histolysis of the muscles happens in first third of the pupal period and their reconstruction happens in the following days. The brain exists all along.Conclusion We suggest the transformations of the skeleton occur earlier than the musculature. Most of the transformations are related to tasks they play in the developmental stages.

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