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Treatment Devices
Published in Laurence J. Street, Introduction to Biomedical Engineering Technology, 2023
Peristalsis is a means of moving fluids through a tube by sequentially compressing segments of the tube, pushing the fluid from one section to another in the desired direction of flow. Food is moved through the intestine by peristalsis; rings of muscle in the intestinal walls contract in a wave-like pattern to squeeze food along.
Designing for Upper Torso and Arm Anatomy
Published in Karen L. LaBat, Karen S. Ryan, Human Body, 2019
Digestive tract volume varies according to the volume and movement of ingested portions of food and liquid plus the digestive juices added by the body and the gaseous products of the gut microbiome. Peristalsis in the hollow digestive organs facilitates both food breakdown and movement of material through the system. The stomach expands to hold the amount of food and liquid consumed. Transit time is the amount of time it takes food to move through the entire digestive tract. Transit time varies from individual to individual and from time to time, within one individual. When you are sick with the “stomach flu” with diarrhea, the transit time for food and liquid can be much faster than usual.
Work Capacity, Stress, Fatigue, and Recovery
Published in R. S. Bridger, Introduction to Human Factors and Ergonomics, 2017
Smooth muscle is found in the intestines and makes possible the movements essential for the digestion of food (peristalsis). It is also found in the walls of blood vessels where it is involved in the regulation of blood pressure and blood flow. It is not normally under conscious control. Cardiac muscle has a special structure and constitutes the bulk of the heart. The present discussion is limited to work involving skeletal muscle—muscle connected to the bones of the skeleton.
Analysis of Bejan number and Entropy generation of Non-Newtonian nanofluid through an asymmetric microchannel
Published in Numerical Heat Transfer, Part A: Applications, 2023
Arjunan Magesh, Perumal Tamizharasi, Jayaraman Kamalakkannan
Peristalsis is a term used to describe the progression of rhythmic muscle relaxation and contraction that aids in fluid transport through tubes, channels, and most of the physiological system. This function is used in the blood circulation in the small vessels, movement of urine to the bladder from the kidney, chime movement in the gastrointestinal tract, bile in the duct, locomotion of worms, movement of spermatozoa in duct efferents, transport of ovum in the fallopian tube of female, movement of lymph in the lymphatic vessels, etc. Initial work on the peristaltic flow of the viscous fluid by Latham [7]. The work was extended with Long wavelength approximation by Shapiro et al. [8]. The peristaltic motion of Carreau fluid through a non-uniform channel [9]. They presented the flow rate of Newtonian fluid as more significant in magnitude than Carreau fluids. The impact of slip effects on the nanofluid flow through peristalsis [10]. They implemented the analytic method to obtain the results of temperature and nanoparticle volume fraction. Hussein [11] examined simulating and interpreting the MHD peristaltic motion of the dissipated Eyring-Powell nanofluid circulation across the vertical divergent/nondivergent channel. Magesh et al. [12] discussed the impact of the magnetic field on the peristaltic motion of Oldroyd-B liquid in an asymmetrical inclined channel.
Mathematical modelling on peristaltic motion and temperature distribution of dusty Jeffrey fluid under the influence of variable viscosity
Published in International Journal of Ambient Energy, 2023
The peristaltic phenomenon has attracted the attention of researchers due to its extensive applications in biochemical, physiological, and industrial processes. Peristalsis is an essential property of various biological systems having smooth muscle tubes that transport biofluids by their propulsive movement and its applications can be visualised in the esophagus, stomach, intestines, ureter, blood vessels, and so on. Using the same principle, numerous biomedical equipment like heart-lung machines in blood pumping, finger pumps, dialysis machines, artificial heart equipment, etc. are designed for transporting fluids. Excellent disclosure of many other peristaltic flow applications is provided by Fung and Yih (1968). Following the pioneering work of Latham (1966), the first systematic investigator of peristaltic flows, several surveyors (Yahya, Sanaa, and Abd-Alla 2015; Parthasarathy, Arunachalam, and Vidhya 2015; Gnaneswara Reddy, Venugopal Reddy, and Makinde 2016; Rehman et al. 2015; Subba Reddy, Ramachandra Rao, and Sreenadh 2007; Hasona et al. 2020; Ibrahim 2022; Awais et al. 2017, 2020; Roohi Laila et al. 2019; Ali et al. 2017, 2019b, 2021a), Anjum and Ali 2022; Samreen Sheriff et al. 2019) has reported the peristalsis mechanism in their theoretical and experimental studies.
Analysis of elasticity on the flow of blood through the transient permeable channel with an interaction of radiation
Published in Waves in Random and Complex Media, 2022
S. Mohanty, B. Mohanty, S. R. Mishra
Peristalsis is a progression of a wave-like structure with contraction and relaxation which move food within the digestive tract. Peristalsis is a physiological process that is used in physiologist and biomedical science areas. This pumping phenomenon is helped water from indigestive food for absorbed into the blood and the remaining waste products are emitted through the anus. Latham [1] was first introduced the method of fluid transport using the peristalsis pumping process in different biomedical and mechanical areas. Fung and Yih [2] survived this peristalsis and developed mathematical models for peristalsis pumping. Shapiro et al. [3] presented peristalsis flow under the consideration of small Reynolds number and long wavelength. The peristalsis process is an important aspect for researchers and scientists. So they studied the different features of this process [4,5]. Usha and Ramachandra [6] have scrutinized different effects of peristalsis flow and the interesting outcome is that for the mean flow rate the peristalsis wave rate always increases. Srivastava [7] reported that blood flow is electrically conducting fluid in nature. He examined the MHD blood flow within the porous channel presence of magnetic field.