scholarly journals A Cadaveric Study of Different Angles of Scapula and Their Role in its Kinesiometrics and Muscle Morphology

2013 ◽  
Vol 52 (191) ◽  
Author(s):  
Ritika Sharma ◽  
Rajan Kumar Singla ◽  
Jagdev Singh Kullar ◽  
Rajan Sharma ◽  
Tripta Sharma

Introduction: The bipedal gait and consequential freedom of the upper limb in human beings has made the movements of the shoulder joint a subject of extensive investigations. The scapular angles provide the base and leverage to various muscles and have been correlated with the different movements of the shoulder joint.Methods: In the present study, different angles of scapula  namely superior, inferior, lateral, medial, acromial  and coracoid angles were measured in the North Indian population. The study was conducted on 100 scapulas (R:L = 50:50) obtained from Department of Anatomy, Government Medical College, Amritsar. For measuring the angles, centimetre scales and protractor were used.Results: The mean value of superior angle was observed to be 100.830 (R=100.320 : L=101.340) ; inferior angle was 63.620 (R=68.10 : L=59.140) ; lateral angle was 61.720 (R=65.90 : L=57.540) ; medial angle was 147.640 (R=151.320 : L=143.960) ; acromial angle was 106.470 (R=107.680 : L=105.260) and coracoid angle was 83.30 (R=84.240 : L=82.020).Conclusions: It was observed that all angles were higher in the right sided bones except superior angle. Also a wide range was seen in all the angles.     _______________________________________________________________________________________Keywords: acromial; coracoid; inferior; medial; superior._______________________________________________________________________________________

2021 ◽  
pp. 11-14
Author(s):  
Rani Raphael M ◽  
Sajey P. S. ◽  
Rajad. R ◽  
Varghese P. D

Introduction: In human anatomy the acetabulum is a cavity on the lateral aspect of the hip-bone. The purpose of this study is to record the depth and diameter of the acetabulum cavity to accumulate morphological data helpful for anthropologists, Forensic medicine experts and orthopedicians. Materials And Methods: The study was done on 88 adult human hip bones (42 right and 46 left) collected from Department of Anatomy, Govt.T.D Medical College, Alappuzha, Kerala state. The diameters and maximum depth were measured using digital vernier calliper. The measurements were compared with other studies in the world. The mean diam Results: eter of acetabulum was 48.08 ± 3.21mm, 44.16 ± 2.60 mm in male and female respectively. The mean ± S.D value of depth was 29.11± 2.37 and 27.20± 2.01 mm. in male and female respectively. The correlation between depth and diameter was signicant only in the right male hip bones. There is signicant variation in the Conclusion: anatomical parameters of hip bone between different Indian population groups. The data from this study may be used for designing population specic hip prosthesis.


2020 ◽  
Vol 7 (51) ◽  
pp. 3090-3093
Author(s):  
Monjushree Chakravarty ◽  
Rashmi Rekha Bordaloi

BACKGROUND Assam is in the North East of India. The earliest inhabitants of Assam were people who came from Southeast Asia. The ethnic communities constitute about 12 to 13 percent of the state population. The present study was undertaken to evaluate the carrying angle of the elbow in ethnic Assamese community. METHODS The study was conducted in the Department of Anatomy, Tezpur Medical College. Out of 225 students admitted in first semester M.B.B.S. in two consecutive years in Tezpur Medical College, 20 students belonged to different ethnic communities of Assam. The carrying angle of both the right and left upper limbs were measured in the twenty selected students. Evaluation was done following all legal formalities. RESULTS The mean carrying angle in males was 10.33 + / - 1.56 in the right limb and 12.11 + / - 1.72 in the left limb; in the females it was 11.73 + / - 2.73 on the right side and 11.45 + / - 3.26 degree on the left side. CONCLUSIONS The study was done to find the carrying angle of the elbow in the ethnic Assamese community. The results of this study will be of help in the diagnosis and treatment of deformity and injury around the elbow. KEYWORDS Carrying Angle, Elbow, Ethnic Assamese Community


2021 ◽  
Vol 9 (1.3) ◽  
pp. 7890-7895
Author(s):  
Salma Sadaf ◽  
◽  
Padmalatha K ◽  
Giridhar Dasegowda ◽  
Priyanka Prasanna Kumar Belaguthi ◽  
...  

Background: The third trochanter is an osseous-cartilaginous-tendinous complex. It is a term used for a prominent oval structure usually confined under the greater trochanter in the superior end of gluteal tuberosity. The third trochanter results from increased pull of the gluteus maximus. The third trochanter gives the muscle better grip, helps to alter the direction of tendon and improves effective function. Purpose of the study: The present study was undertaken to compare the incidence of the third trochanter in human femora with other series and to correlate with its morphometry. Materials and Methods: 56 dry human femurs (28 each of right and left side) of unknown age and sex were obtained from fellow undergraduate students at ESIC Medical College and PGIMSR, Bangalore, Karnataka, India. Trochanters with damaged upper ends were excluded from the study. After careful examination two femurs were excluded and the rest were subjected to identification of third trochanter. Results: The incidence of the third trochanter in the present study was 14.28% with the right side predominant (10.71%). The mean length and width were 17.87mm and 7mm respectively. The femurs with the third trochanter were found to have better developed greater trochanter and all the osteometric measurements were found to be higher compared to the ones without. No significant difference was noted in the morphometric indices, as all the osteometric measurements were uniformly increased. Conclusion: This study was performed to increase the understanding of this post-cranial non metric trait on Indian population because of scarcity of information on this variation of human femora. We find the incidence more on the right side indicative of dominant side in most people. The femurs were uniformly bulkier as seen in better built human femurs. Hence, it is a change to meet the functional demands. KEY WORDS: third trochanter, trochanter, femur, morphometry, gluteus maximus, bony projection, non-metric variant, post-cranial.


2021 ◽  
pp. 1-3
Author(s):  
Vivek Kumar ◽  
Vivekanand Murlidhar Gajbhiye

Background: In the fields of forensics, anthropology, orthopaedics, and human kinematics, the thigh bone femur is widely studied. The clinical significance of the femoral neck shaft angle lies in the diagnosis, treatment and monitoring of femoral neck fractures, trochanteric fractures, slipped upper femoral epiphysis, and hip developmental dysplasia. Objective: The present study was conducted to compare the NSA disparity between femurs on both sides and to compare the NSA with the Western and Indian population sizes of different regions. This research therefore leads to Indian data on these parameters. Materials and Methods: A total of 150 (75 right and 75 left) dry femur were used for measuring the neck shaft angle. Unpaired t-test was used to compare right and left femora. Results: The mean value of neck shaft angle was 126.04±5.05°. It ranges between 1130 to 1360. The mean value of right side was 125.92±4.9° and left side was measured 127.43±5.2°. There was no significant correlation between right and left neck shaft angle. Conclusion: The mean left femoral neck shaft angle was higher than the right femoral shaft in the present analysis, but the values were not statistically important. The angle of the neck shaft was lower than most studies in the Western population, but it was similar to most other studies in India. In the Indian population, geographical variations in the angle of the neck shaft also occur. In the field of orthopaedic surgery and anthropometry, this research will be of benefit.


2018 ◽  
Vol 7 (4) ◽  
pp. 13-21
Author(s):  
Todd Backes ◽  
Charlene Takacs

There are a wide range of options for individuals to choose from in order to engage in aerobic exercise; from outdoor running to computer controlled and self-propelled treadmills. Recently, self-propelled treadmills have increased in popularity and provide an alternative to a motorized treadmill. Twenty subjects (10 men, 10 women) ranging in age from 19-23 with a mean of 20.4 ± 0.8 SD were participants in this study. The subjects visited the laboratory on three occasions. The purpose of the first visit was to familiarize the subject with the self-propelled treadmill (Woodway Curve 3.0). The second visit, subjects were instructed to run on the self-propelled treadmill for 3km at a self-determined pace. Speed data were collected directly from the self-propelled treadmill. The third visit used speed data collected during the self-propelled treadmill run to create an identically paced 3km run for the subjects to perform on a motorized treadmill (COSMED T150). During both the second and third visit, oxygen consumption (VO2) and respiratory exchange ratio (R) data were collected with COSMED’s Quark cardiopulmonary exercise testing (CPET) metabolic mixing chamber system. The VO2 mean value for the self-propelled treadmill (44.90 ± 1.65 SE ml/kg/min) was significantly greater than the motorized treadmill (34.38 ± 1.39 SE ml/kg/min). The mean R value for the self-propelled treadmill (0.91 ± 0.01 SE) was significantly greater than the motorized treadmill (0.86 ± 0.01 SE). Our study demonstrated that a 3km run on a self-propelled treadmill does elicit a greater physiological response than a 3km run at on a standard motorized treadmill. Self-propelled treadmills provide a mode of exercise that offers increased training loads and should be considered as an alternative to motorized treadmills.


2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Emmanouil Chatzipetros ◽  
Spyros Damaskos ◽  
Konstantinos I. Tosios ◽  
Panos Christopoulos ◽  
Catherine Donta ◽  
...  

Abstract Background This study aims at determining the biological effect of 75/25 w/w nano-hydroxyapatite/chitosan (nHAp/CS) scaffolds on bone regeneration, in terms of fraction of bone regeneration (FBR), total number of osteocytes (Ost), and osteocyte cell density (CD), as well as its biodegradability. Methods Two critical-size defects (CSDs) were bilaterally trephined in the parietal bone of 36 adult Sprague-Dawley rats (18 males and 18 females); the left remained empty (group A), while the right CSD was filled with nHAp/CS scaffold (group B). Two female rats died postoperatively. Twelve, 11, and 11 rats were euthanized at 2, 4, and 8 weeks post-surgery, respectively. Subsequently, 34 specimens were resected containing both CSDs. Histological and histomorphometric analyses were performed to determine the FBR, calculated as [the sum of areas of newly formed bone in lateral and central regions of interest (ROIs)]/area of the original defect, as well as the Ost and the CD (Ost/mm2) in each ROI of both groups (A and B). Moreover, biodegradability of the nHAp/CS scaffolds was estimated via the surface area of the biomaterial (BmA) in the 2nd, 4th, and 8th week post-surgery. Results The FBR of group B increased significantly from 2nd to 8th week compared to group A (P = 0.009). Both the mean CD and the mean Ost values of group B increased compared to group A (P = 0.004 and P < 0.05 respectively). Moreover, the mean value of BmA decreased from 2nd to 8th week (P = 0.001). Conclusions Based on histological and histomorphometric results, we support that 75/25 w/w nHAp/CS scaffolds provide an effective space for new bone formation.


1961 ◽  
Vol 38 (4) ◽  
pp. 695-705
Author(s):  
J. B. BALINSKY ◽  
E. BALDWIN

1. Eighty-two single determinations of ammonia and urea excretion by Xenopus laevis indicated that the percentage of ammonia varied from 40 to 80%, with a mean value of 62%. 2. Measurements of excretion on successive days after feeding showed that a large amount of ammonia was produced soon after feeding, but that ammonia excretion declined rapidly. Urea excretion, not so high initially, remained more or less constant until the third or fourth day, often exceeding ammonia excretion at that time. Thereafter, it also declined and the excretion of both substances reached a constant starvation level by the fifteenth day. 3. Both ammonia and urea excretion were equally affected by temperature. The Q10's were near 2 in the range 20-30° C., but greater in the range 10-20° C. 4. At least 86% of ammonia, and 81% of urea were excreted through the cloaca. 5. The mean 24 hr. urine output of Xenopus at 20% C. was 23.6 ml. per 100 g. body weight. 6. Although the blood ammonia concentration did not appear to be zero, the urine/blood concentration ratio of ammonia was greater than 100. The urine/blood concentration ratio of urea was not significantly different from unity, and constant over a very wide range of concentrations. 7. The above result is interpreted to indicate passive glomerular filtration of urea, and little or no tubular reabsorption of water. 8. It is suggested that ammonia is formed in the kidney, and actively secreted into the glomerular filtrate.


2021 ◽  
pp. 35-36
Author(s):  
Chetna Thakur ◽  
Bhawani Shankar Modi ◽  
Tejendra Singh

Introduction: Human beings are considered to be bilaterally symmetrical. However, there is no symmetry in the length of the feet irrespective of sex or handedness. The hand length could predict bodyweight and body surface area independent of the sex of the individual. But there was no so much data available in the literature showing the relationship between hand length and foot length. Aim and objective: The present study was conducted to derive the correlation between hand length and foot length and the results demonstrate that there was highly signicant correlation between them. Material and Methods:Across sectional study was carried out on 200 healthy and normal adult professional students of either sex (100 Male and 100 Female), age between 18-25 years. Result:the hand length and foot length were compared between the right and left sides, the data showed that the signicant difference between males and females on both sides was highly signicant for all the parameters measured with p value < 0.01 Conclusion:The results of current study indicate that if the hand length is known, foot length can be predicted and if the foot length is known, hand length can be predicted and vice versa.


Development ◽  
1976 ◽  
Vol 35 (3) ◽  
pp. 637-648
Author(s):  
Par Eliane Didier ◽  
Noël Fargeix

Quantitative aspects of the colonization of the gonads by germ cells in the quail embryo (Coturnix coturnix japonica) A quantitative analysis made on quail embryos coming from 13 isolated parent couples reveals some significative variations of a genetic origin, between some of the off spring studied: the differences observed concern both the quantitative importance of the colonization of gonads by germ cells and the asymmetrical distribution of PGCs (primordial germ cells) between the two genital ridges. The chronological study of the colonization in the quail shows, as in both the duck and the chick, two periods of rapid and regular increase of the number of gonadic PGC, at stages from 13 to 18 and from 24 to 30 of Hamburger & Hamilton. The distribution of germ cells between the two genital ridges is, at the beginning of the colonization, not very asymmetrical. Between stages 18 and 24 the asymmetry increases and remains stable so that the mean value of D % (percentage of the number of PGC contained in the right gonad) from that moment on is equal to 29–34 %. This value is specific for the quail embryo.


2015 ◽  
Vol 04 (04) ◽  
pp. 186-189
Author(s):  
N Muthukumaravel ◽  
K. Y Manjunath

Abstract Background and aims: The third trochanter is defined as the osseous tubercule in the superior part of the gluteal tuberosity. The occurrence of third trochanter might have been due to the consequence of the relative strengthening of gluteus maximus muscle in human beings. The present study was undertaken on the femora of northern Tamil Nadu region with the aim to determine the frequency of third trochanter of femur in this region and to compare it with occurrence in other series. Material and methods: The study was carried out on a collection of 153 dried adult femora of unknown age and sex available at the departments of Anatomy of Annapoorana Medical College and Vinayaka Mission's Homeopathy Medical College, Salem, Tamil Nadu, India. Results: Out of total 153 femora studied, the presence of third trochanter was noticed in 21 femora (13.72%). Out of these 15.71% were femora of the right side and 12.04% were of the left side. The average length and breadth of the third trochanters were 19.80±5.22 mm and 7.63±1.75 mm respectively Conclusion: The occurrence of the third trochanter was considerably higher among right femora than the femora of the left side. The average length of the third trochanters was found to be more on the right side and average width was more on the left side. This may be due to functional difference between the right and left gluteus maximii muscles.


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