ipl-logo

Peristalsis Research Paper

950 Words4 Pages

Peristalsis is a natural process of area contraction and expansion along the length of the tube/channel. The peristaltic flows of Newtonian and non-Newtonian fluids have immense applications in physiology and industry. In physiology, many body parts such as stomach, gastrointestinal tract and small intestines are the common examples in which peristaltic waves appear. The peristaltic phenomenon has great importance in the movement of food bolus in the digestive system, chyme motion in the gastrointestinal tract, transport of lymph in the lymphatic vessels, movement of ovum in the fallopian tube, passing of bile from gall bladder to duodenum, urine flow from kidneys to bladder, etc. This mechanism is also involved in plant physiology which is …show more content…

In industry, in many biomedical appliances are used the phenomenon of peristalsis, such as finger pump, blood pump machine, heart-lung machine, dialysis machine. This mechanism was first introduced by Latham [1]. He performed several investigations theoretically and experimentally to understand the phenomenon of peristalsis in the ureteral functions. After Latham’s significant works, Shapiro [2] and Fung and Yih [3] have described biologically and medically important reflux phenomenon. Vesicoureteral Reflux
(VUR) is the backward flow of urine from the bladder into the kidneys. The muscles of the bladder and ureter along with the pressure of urine in the bladder prevent urine from flowing backward through the ureter. Due to this reason, urine generally flows from the kidneys to the bladder. VUR allows bacteria, which may be present in the urine inside the bladder, to reach the kidneys. This may be lead to kidney infection, scarring and damage.
The analysis of the fluid flow pattern in a non-pregnant uterus is important for understanding embryo transport in the uterus. Fertilization take place in the fallopian tube and the embryo enters the uterine cavity within three days of ovulation. In the uterus, the embryo is …show more content…

In view of this, many investigators have presented many non-Newtonian fluid models have been developed by several researchers to explain the relationship between the stress and the rate of deformation tensors. Keeping these in mind, a number of analytical, numerical and experimental studies on the peristaltic transport problems with different fluids have been reported by several authors under different situations with reference to physiological and mechanical situations. In particular, several authors [7-13] have used many methods (like Analytical method, Perturbation method, Adomian decomposition method, Differential transform method, Shooting method, NDSolve and Homotopy perturbation method) to solve the higher order non-linear partial differential equations which are involved in the peristaltic transport problems.
In many bio-mechanical studies, porous medium has significant influence on the transport of fluids. This applies more specifically to vessels impeded by clots, highly perfused skeletal tissues, tumors and soft connecting tissues. Porous medium is also applicable in growth

Show More
Related
2403 Words | 10 Pages

Performing these experiments under isometric and isotonic conditions can help diagnose diseases relating to muscle dysfunctions. It was hypothesized that the model for skeletal muscle contractile kinetics created by testing the gastrocnemius muscle of a Rana pipiens would resemble peer-reviewed models. Muscle

Read More
610 Words | 3 Pages

During my clinical preceptorship at New York Presbyterian Hospital, many patients that came into the hospital with urinary retention a catheter was inserted to determine the amount of urine in their bladder or post-void residual (PVR). Many patients later developed pain and a urinary tract infection or Community Acquired Infection secondary to frequent cauterization. Therefore, the gap identified was related to a knowledge deficit of the current practice that inserting a

Read More
139 Words | 1 Pages

A big way that this technique has been used is to aid in the delivery of drugs and biological therapeutics for brain tumors across the blood brain barrier. This transport still has limitations, but the future expectations for the

Read More
380 Words | 2 Pages

The uterus holds the developing fetus until birth. The fallopian tubes are thin tube structures. They extend from the uterus to the ovaries. It allows the the egg to travel from the ovaries to the uterus.

Read More
856 Words | 4 Pages

We want to make sure that gravity is doing its job and that there is no fluid going back into the bladder which will help to prevent infection. We don’t want to ever place a bag in a patient lap or abdomen and we need to also watch the tubing so that is never above the patient’s bladder level and that it

Read More
460 Words | 2 Pages

I write on behalf of my patient, Phil Robins, who is a sixty-five-year-old male facing acute urinary retention. Phil Robins shows several medical symptoms, including an inability to urinate, severe pain and discomfort in the lower abdomen, and bloating of the lower abdomen. My patient has been previously diagnosed with benign prostatic hyperplasia which has been obstructing his urinary tract. Because of this, he frequently has to use a catheter to empty his bladder. My main concern for Mr. Robins is the prevention of infections commonly associated with catheter use.

Read More
933 Words | 4 Pages

In the clinic, a needle is periodically inserted into this valve and salt water (saline solution) is injected into the tissue expander. The tissue expander

Read More
1638 Words | 7 Pages

Perfusionists employ artificial blood pumps to propel open-heart surgery patients' blood through their body tissue, replacing the function of the heart while the cardiac surgeon operates. When a patient's blood is continuously removed and returned through plastic tubing to allow

Read More
94 Words | 1 Pages

Patient was given perineal care prior to the straight catheterization, which is performed every four hours. Beforehand, the cna had a bladder scan on the patient and there was 321 milliliters of urine left in the bladder. During the process of inserting the straight catheter, the patient was asked to take a deep breath while they inserted the catheter through the urethra. At the same time, the nursing students had to teach the patient about bladder management and possible the high risk for urinary tract infections due to multiple insertions of the straight catheter.

Read More
487 Words | 2 Pages

On assessment of his abdomen I noticed his lower pubic area was bulging outward, which looked very abnormal. I started to insert the Indwelling catheter and noticed that when it was fully inserted there was no urine return, but I was

Read More
214 Words | 1 Pages

The data proves that the size of the fins do impact the height of the rocket. When launched with the small fins, the rocket reached a height of 38.35 meters and had a time of 5.54 seconds. The larger fins appeared to make a difference in the height. The height achieved with the larger fins was 48.82 meters and accomplished a time of 6.25 seconds. This data proves that the hypothesis was correct.

Read More
944 Words | 4 Pages

Special attention was given to the supra- and subhepatic regions, the left subdiaphragmatic space. After lavage, all the fluid was aspirated and a tube drain was kept in the subhepatic space. In case of generalized peritonitis, a second drain was placed in the pelvis. Posoperatively, proton pump inhibitor, intravenous fluids, and broad- spectrum antibiotics were administered.

Read More
723 Words | 3 Pages

Intermittent catheterization, allowing the patient to be involved in the insertion and removal of a catheter, and educating patients on the use of indwelling catheters can increase human dignity and decrease catheter associated urinary tract infections. Intermittent catheterization is when a catheter is inserted to drain the bladder and is immediately taken out once the bladder is emptied. The use of intermittent catheterization over indwelling catheterization can increase human dignity, especially in home settings, by allowing patients to have more independence in their self-care (Woodward, Steggal, & Tinhunu, 2013). Indwelling catheters contain drainage systems that can be embarrassing and inconvenient for patient’s. Intermittent catheterization gets rid of the drainage systems, allowing

Read More
917 Words | 4 Pages

Slow peristaltic activity moves the stool slowly along the colon. This slow movement allows reabsorption of water and electrolytes. This is the primary purpose of the colon. The large intestine is where the stool is formed. The stool is the leftover waste that has not been absorbed into the cells.

Read More
828 Words | 4 Pages

It is estimated that upto 85% of embryo’s transferred through assisted reproductive technique could not be implanted into endometrial cavity successfully9. For the embryo to implant effectively it needs good trophoblastic invasion as well as an increased blood supply 10-11. Failure to conceive after atleast two cycles of embryo transfer is defined as recurrent implantation failure (RIF)12.Wide range of physiological factors are responsible for recurrent implantation failure such as hormonal imbalance, poor endometrial receptivity, defects in foetal growth, abnormal changes in the expression of adhesion molecules, immunological factors and genetic abnormalities. The etiology of recurrent implantation failure (RIF) and recurrent spontaneous abortion (RSA) largely overlaps where the results of the studies of RSA can also be extended to RIF

Read More

More about Peristalsis Research Paper

Related Topics

Open Document