Reasons For Performing Study: Dysfunction of the muscles is implicated in the pathogenesis of intermittent dorsal displacement of the soft palate (DDSP) in exercising horses. The histological features of normal equine soft palate muscles have not been previously described.
Objective: To describe the histological and morphometric features of normal equine soft palate muscles.
Methods: The palatinus, palatopharyngeus, levator veli palatini and tensor veli palatini muscles of 6 Thoroughbred type horses were examined histologically and histochemically to assess their general morphology, fibre-type distribution and mean fibre diameter.
Results: The muscles of all 6 specimens showed very similar characteristics, including a low proportion of type 1 muscle fibres in the 4 different muscles examined, with the 3 muscles innervated by the pharyngeal branch of the vagus (i.e. palatopharyngeus, palatinus and levator veli palatini) having significantly fewer (P<0.005) type 1 muscle fibres compared to the tensor veli palatini. The mean fibre diameters were significantly (P<0.05) smaller in type 1 than type 2 fibres in all muscles except the palatinus. Considerable variability in mean fibre size diameter was evident in all muscles examined, with type 1 fibres in the levator veli palatini and rostral fasciculus of the palatopharyngeus and both fibre types in the caudal fasciculus of the palatopharyngeus having the most marked variation, with coefficients of variation >250 and the latter also having high levels of endomysial connective tissue. The palatinus had least variation in fibre size.
Conclusion And Clinical Relevance: Morphological characterisation of the normal soft palate muscles may provide reference values for future comparative studies with samples obtained from horses with palatal dysfunction. The palatinus appears to be the best muscle to histologically examine for evidence of muscle abnormality.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.2042-3306.2010.00067.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pooled prevalence and associated factors of traditional uvulectom among children in Africa: A systematic review and meta-analysis.
PLoS One
January 2025
Department of Nursing, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia.
Background: Traditional childhood uvulectomy (TCU) is an unregulated cultural practice associated with significant health risks, including infections, anemia, aspiration, and oral or pharyngeal injuries. The reuse of unsafe tools such as blades, needles, or thread loops exacerbates the spread of infectious diseases like HIV and hepatitis B. Despite its clinical significance, the pooled prevalence and associated factors of TCU have not been adequately examined through systematic reviews or meta-analyses.
View Article and Find Full Text PDFA reliable and objective method of measuring soft tissue changes in 2D photographs after distraction osteogenesis in individuals with CL/P.
J Plast Surg Hand Surg
January 2025
Department of Clinical Sciences in Malmö, Lund University, Lund, Sweden; Department of Oral and Maxillofacial Surgery, Skåne University Hospital, Malmö, Sweden; Department of Orthodontics, Malmö University, Malmö, Sweden.
Pre- and postoperative photos to assess results are widely used in plastic and reconstructive surgery, for instance, in patients with cleft lip and palate (CL/P). Evaluations are often performed by assessment panels by viewing the photos. However, these are prone to be subjective.
View Article and Find Full Text PDFModified Uvular Repair in Children Undergoing Palatoplasty.
Cleft Palate Craniofac J
January 2025
Smile Train Cleft Leadership Center, Bhagwan Mahaveer Jain Hospital, Bangalore, India.
Background: Paucity exists in the literature on uvular repair while documenting palatoplasty techniques for children with cleft palate.
Solution: We propose a modified approach without losing any soft tissue structures, gaining better cosmetic outcome, and possibly having functional gains postoperatively.
What We Did That Is New: The proposed technique provides better cosmesis for the structures postoperatively and enhances the palatoglossal arch, which may prevent the spillage of saliva to the oropharyngeal region.
Anatomical limits of the parapharyngeal space using a transoral endoscopic approach - Radioanatomical study in cadaver.
Eur Arch Otorhinolaryngol
January 2025
Otorhinolaryngology Department, Hospital Clínico Universitario de Valladolid, Valladolid, Spain.
Purpose: The aim of this study is to obtain the anatomical limits of the parapharyngeal space by transoral surgical approach, in order to objectively determine the types of lesions according to location, where this type of approach is more indicated.
Methods: A prospective, experimental, radio-anatomical study was performed on 10 cryopreserved human heads(20 sides). A transoral approach of the parapharyngeal space was performed determining its anatomical limits by CT navigation.
Evaluation of the Palatal Features in Relation to Graft Harvesting in the Saudi Population.
Medicina (Kaunas)
January 2025
Faculty in Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh P.O. Box 11545, Saudi Arabia.
The palate's morphological characteristics are of great importance, especially in periodontology, where the palatine tissue represents a source of tissue graft for multiple mucogingival surgeries. This study aimed to estimate the amount of donor tissue available through the average palatal height and average location of the greater palatine artery in the Saudi population according to age and gender. Digital casts for adult Saudi patients at the age of 18-60 years old with a mean age of 37.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!