EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
EurekaMag PDF Full Text Supply ServicePDF Full Text Supply Service
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn
Follow on LinkedInFollow on Tumblr

+ Translate

The pressure equilibrating function of pars flaccida in middle ear mechanics


, : The pressure equilibrating function of pars flaccida in middle ear mechanics. Acta Physiologica Scandinavica 118(4): 337-341

In the adult male rat the precise volumes of the middle ear cavity, the lateral attic compartment and a maximally retracted pars flaccida were calculated to 550 microliter, 21 microliter and 3 microliter respectively, using Woods metal. Small intratympanal pressure or volume changes caused the pars flaccida to move in a medial-lateral direction. As the volume of a maximally retracted or bulging pars flaccida only amounted to about 0.5% of the total middle ear volume and the pars flaccida reacted even at volume changes of 0.1% of the middle ear, it would seem that the pressure equilibrating capacity of the elastic pars flaccida is negligible. On the other hand the pars flaccida is extremely sensitive to pressure and volume changes in the middle ear and may take part in the pressure equilibrating system as a detector for minute pressure and/or volume changes in the middle ear.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 006740060

PMID: 6637537

DOI: 10.1111/j.1748-1716.1983.tb07280.x

PDF Full Text: The pressure equilibrating function of pars flaccida in middle ear mechanics


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

Lardhi, A.Abdullah., 2010: Prevalence and clinical significance of heart murmurs detected in routine neonatal examination. To determine the prevalence and clinical impact of murmurs detected during routine physical examination in neonates. In a 4 years retrospective study, 6333 healthy newborn babies were screened for the presence of a heart murmur during routine neo...

Inoue S., 1976: Cerebral effects of nitrous oxide. Bulletin of the Yamaguchi Medical School 23(3/4): 197-214

Nguen Tai L.Yung, 1968: Absorptive function of dogs intestines during experimental gastric ulcers and focal pneumonia. Uchenye Zapiski Tartuskogo Gosudarstvennogo Universiteta: 299-309

Karg G.; Breutel G.; Baessler U., 1991: Sensory influences on the coordination of two leg joints during searching movements of stick insects. Animals (Cuniculina impigra) possessing only one foreleg with restrained coxa perform very stereotyped searching movements during which the movements of the femur-tibia and coxa-trochanter joints are well coordinated. After ablation of either harf...

Escobar, G.J.; McCormick, M.C.; Zupancic, J.A.F.; Coleman-Phox, K.; Armstrong, M.A.; Greene, J.D.; Eichenwald, E.C.; Richardson, D.K., 2006: Unstudied infants: outcomes of moderately premature infants in the neonatal intensive care unit. Newborns of 30-34 weeks gestation comprise 3.9% of all live births in the United States and 32% of all premature infants. They have been studied much less than very low birthweight infants. To measure in-hospital outcomes and readmission within th...

GABRILOVE, J.L.; WEINER, H.E., 1962: Effect of thyroid function on adrenocortical steroid metabolism in a patient with Addison's disease and thyrotoxicosis. Urinary adrenocortical steroid metabolites, the half-life of cortisol and the salivary electrolyte pattern were studied during the course of treatment of thyrotoxicosis in an addisonian subject maintained on a fixed dose of adrenocortical replacem...

Brown, D.; Portlock, J.; Rutter, P.; Nazar, Z., 2014: From community pharmacy to healthy living pharmacy: positive early experiences from Portsmouth, England. Research has shown the potential for community pharmacies to promote better health and prevent disease by providing individual services in a limited range of settings. In the UK, the healthy living pharmacy (HLP) framework has been developed to al...

Sekiguchi, H.; Akiyama, S.; Fujiwara, M.; Nakamura, H.; Kondo, K.; Kasai, Y.; Ito, K.; Sakamoto, J.; Takagi, H., 1999: Phase II trial of 5-fluorouracil and low-dose cisplatin in patients with squamous cell carcinoma of the esophagus. A phase II study was conducted to determine the clinical efficacy and toxicity of 5-fluorouracil (5-FU) and low-dose cisplatin (CDDP) in patients with squamous cell carcinoma of the esophagus. Chemotherapy consisted of 5-FU at a dose of 330 mg/m2...

Cambier, J.; Masson, M.; Elghozi, D.; Henin, D.; Viader, F., 1980: Visual agnosia without right hemianopia in a right-handed patient. A right-handed 77-year-old man presented with a left homonymous lateral hemianopsia involving the macula. Consciousness, memory, and oral language were normal, but the patient experienced great difficulties in identifying objects and images by sig...

King, R. L., 1864: On the Scydmaenides of New South Wales. Transactions Entomological Society of New South Wales, Vol. I 91-99