The Formation of the Ootheca by Periplaneta americana II. The Structure and Function of the Left Colleterial Gland

1952 ◽  
Vol s3-93 (21) ◽  
pp. 47-69
Author(s):  
P.C. J. BRUNET

The anatomy of the left colleterial gland of the cockroach is described. It is convenient to subdivide the gland into four regions. At the posterior end, abutting on to the outlet of the gland, there is no secretory activity and the cells of this region are not unlike normal epidermal cells. Anterior to this region are the three secretory regions of the gland; of these, the anterior and posterior secrete the structural protein and the constituent cells are equipped with a complex end-apparatus, a thick-walled depression in the apex of the cell in which the final stages of the elaboration of the secretion occur. The body of the end-apparatus contains canalicules which lead to the lumen of the gland. Alkaline phosphatase is abundantly present in this organ. Protein is secreted continuously, and there is no cycle related to oviposition. The third region, between the protein-secreting regions, secretes an oxidase, whose function may well be to oxidize the phenolic tannin-precursor produced in the right colleterial gland when the products of the two glands come together at oviposition. The gland becomes fully functional some 14 days after the final moult, the immature cells of the nymph developing directly into mature cells characteristic of the region in which they occur. Within each of the main regions the cells show some differences which suggest that there is a wave of change passing along the gland. It appears that the cells of the anterior end of the gland become defunct and the hitherto inactive cells of the posterior end take on a secretory function. The structural protein has a high phenolic content, and contains no combined carbohydrate. The presence of lipoid in the secretory cells appears to be directly bound up with the secretory processes.

1959 ◽  
Vol 5 (2) ◽  
pp. 257-262 ◽  
Author(s):  
E. H. Mercer ◽  
P. C. J. Brunet

A study has been made of the cells of the left colleterial gland of the cockroach, Periplaneta americana (L.), using the electron microscope, and the results compared with previous histological and histochemical studies. The colleterial gland consists of an arborescent bunch of long tubules composed mainly of the cells which secrete the structural protein of the egg case ("type 4 cells"). Other types of cells: chitinogenic cells and "type 2 and 3 cells" each with a different cytology are described. The type 4 cells, which form the structural protein, reveal a cytological pattern very similar to that described for mammalian cells in a state of active protein synthesis. There is an elaborate development of particle-studded membranes in the cytoplasm. Smaller, rounded agranular vesicles also occur. The free secretory surface of the secreting cells forms the "end-apparatus" of the light microscopists. The invaginated surface is cast into numerous long narrow processes usually radially arranged and directed into a funnel-like formation derived from the thin intima lining the lumen of the gland (Text-fig. 2). The secretion in the form of small balls may be seen in the cavity of the end-apparatus and sometimes in the narrow processes. The small chitinogenic cells, lying between the protein-forming cells and the thin intima which they secrete, have a different cytology perhaps related to the fact that they form a polysaccharide rather than a protein. There is a very poor development of the particle-studded membranes of the type found in protein-forming cells. The type 2 cells, supposed to form an oxidase, have an end-apparatus that is similar to, but more complex than, those of the type 4 cells and their cytoplasm is almost completely filled with mitochondria. There is some evidence that mitochondria play a part in forming the oxidase and pass into the tubules of the end-apparatus. Type 3 cells resemble both types 2 and 4 and are probably a transient intermediate form.


2019 ◽  
Vol 8 (1) ◽  
pp. 250-262
Author(s):  
Pâmela Abreu Vargas Barbosa ◽  
Amanda Marques Faria ◽  
Daniella Alves Vento ◽  
Flávio Monteiro Ayres ◽  
Cibelle Kayenne Martins Roberto Formiga ◽  
...  

O objetivo foi verificar a influência do excesso de peso na força muscular e na funcionalidade de tronco de mulheres jovens. Estudo analítico transversal, com 54 mulheres de 18 a 30 anos, com excesso de peso (n=25), e eutróficas (n=29). A força muscular de tronco foi avaliada pelo dinamômetro isocinético e a funcionalidade de tronco e membros inferiores através do Bunkie Test. A análise dos dados foi realizada por meio do programa SPSS (Sciences Statistical Package for the Social Sciences). Como resultado, o presente estudo identificou que as mulheres com excesso de peso conseguem gerar pico de torque absoluto na 1º série (p=0,023), na 2º série (p=0,009), e no impulso na 2º série (p=0,009) maiores que as mulheres eutróficas. No entanto, quando o pico de torque foi analisado proporcionalmente ao peso corporal, estes valores foram menores, não sendo encontrada diferença entre os grupos (p0,05). Para o Bunkie Test, o grupo com excesso de peso apresentou pior desempenho na funcionalidade, principalmente nos movimentos de extensão, em decúbito dorsal, dos membros inferiores direito (p=0,011), esquerdo (p= 0,004) e na manutenção do tronco em decúbito lateral direito (p=0,008). Conclui-se que o excesso de peso pode alterar diretamente a força muscular e interferir na funcionalidade de tronco de mulheres jovens, sugerindo um desequilíbrio muscular em tronco e membros inferiores.Palavras-chave: Força Muscular. Obesidade. Funcionalidade. THE INFLUENCE OF OVERWEIGHT ON MUSCLE STRENGTH AND FUNCTION IN YOUNG WOMENABSTRACT: The aim of this study was to verify the influence of overweight on muscle strength and functionality in young women. This is a cross-sectional analytical study that was conducted with 54 women aged 18 and 30 years – twenty-five (25) were overweight and twenty-nine (29) were eutrophic. Muscle strength was assessed by an isokinetic dynamometer, whereas functionality was assessed by the Bunkie Test. Data analysis was performed using the SPSS program (Sciences Statistical Package for the Social Sciences). As a result, the present study identified that overweight women can generate absolute peak torque in the 1st grade (p = 0.023), in the 2nd grade (p = 0.009), and in the 2nd highest grade (p = 0.009) than eutrophic women. However, when the peak torque was analyzed proportionally to the body weight, these values were lower, and no difference was found between the groups (p 0.05). For the Bunkie Test, the overweight group presented worse performance in the functionality, especially in the extension movements, in the dorsal decubitus position, of the right lower limbs (p = 0.011), left (p = 0.004) and in the maintenance of the decubitus trunk right side (p = 0.008). It is concluded that overweight can directly affect muscle strength and interfere with the trunk function of young women, suggesting a muscle imbalance in the trunk and lower limbs.Keywords: Muscle Strength. Obesity. Functioning.


1985 ◽  
Vol 248 (6) ◽  
pp. R702-R708
Author(s):  
R. J. Lowy ◽  
F. P. Conte

A batch method for isolating viable salt glands from the naupliar brine shrimp (Artemia salina) has been developed. This protocol produces a final preparation consisting of approximately 185 isolated salt glands, representing 1 X 10(4) secretory cells/g wet wt nauplii, with a final purity of 88%. Assays of cell integrity and function indicate good retention of in situ characteristics. Vital dye was excluded by 95% of the cells for at least 24 h. The O2 consumption rate was 22.7 nM O2 X min-1 X mg protein-1 and could be altered predictably by compounds known to affect oxidative phosphorylation and ion transport. The specific activity of the Na+-K+-ATPase in the salt gland, measured here for the first time, was 9.1 mM Pi X h-1 X mg protein-1. This is a substantial proportion of the body total, 17%, as expected for an active ion-transporting epithelium.


2021 ◽  
Vol 11 (22) ◽  
pp. 8-28
Author(s):  
Zsuzsanna Kutasi

Based on the knowledge of ancient Greek philosophers, medieval Arabic theoretical anatomy describes the organs, their roles and function as well as their mutual relationships on a philosophical basis wherever there are organs with higher and subordinate roles. According to Ibn Sīnā Abū ‘Alī al-Ḥusayn b. ‘Alī (Avicenna) (370-428 AH or 980-1037 AD), everything in nature is connected with everything else, and the main operator of the body is the immortal divine soul (rūḥ). While breathing, a part of the divine soul enters the lungs, and then the heart as its mixture with blood where 'pneuma' is formed, which spreads out along the arteries throughout the body. The soul part of the inhaled air (al-hawāʼ) regulates the heat of the heart and nourishes it. According to Ibn Sīna, the heart has three cavities: one on the right side, one on the left side, and the third in the middle, which serves as a kind of blood store. The liver governs the right side, the spleen governs the left one. The heart is located in the middle of the chest maintaining a kind of balance between the two vascular systems. The left side has been exalted by the fact that the divine soul comes from the air to the left side of the heart, and from here it floods the whole body through the arteries. The right side of the body is dedicated to bodily functions like turning food into blood, nourishing the organs, and removing the excess. The right half of the body is operated by the left half through nerves originating from the brain. In the brain, the two sides merge. The source of the veins in the liver, while the arteries originate from the heart. As part of a close reading of the text, I created a diagram of branches of the blood vessels to facilitate their identification. In many passages of the anatomical description, we only learn that the vessel in question branches in three, four or five directions and travels in a certain direction or towards certain parts of the body. There is always a branch among them, indeed the largest one, and by connecting these largest branches, we get the full path of a given blood vessel from the beginning to the end. Such as the route v. cava superior from the right ventricle (branches in two directions) - v. brachiocephalica (branches to five) - v. subclavia (branches towards 4) - v. axillaris (branches towards 3) - v. basilica (2 branches branch to 4 at the forearm) - v. mediana cubiti (branches towards 2) - v. salvatella from the heart to fingers. In some cases, erroneous conclusions can be identified in Ibn Sīna's description wherever he connects blood vessels with different origins. Sometimes Ibn Sīna begins to describe a route of a blood vessel and then continues to describe another blood vessel as if it were a continuation of the previous one. Alternatively, he also assigns branches belonging to one blood vessel to branches belonging to another one, such as the v. jugularis interna in the description of branches of the v. jugularis externa.


1963 ◽  
Vol s3-104 (65) ◽  
pp. 1-21
Author(s):  
MARTIN GEORGE

Recent studies of the cephalic glands of Campodea have shown previous descriptions to be misleading in several respects. The campodeid salivary glands lie in the posterolateral parts of the head capsule and each is composed of a much-coiled ‘labyrinth’ and a distal end-sac. The histology of the two regions differs greatly, and although a little secretory activity has been observed in the end-sac, the labyrinth appears to be responsible for secreting most of the definitive saliva. The latter is passed to the outside down a median duct which opens between the ‘setigerous plates’ of the labium. Although the salivary glands of Campodea have homologues in other apterygote insects and the myriapods, the homology of the second pair of cephalic organs, the lobulate glands, is obscure. These glands, which are situated in the head and the anterior part of the prothorax, are composed of cells arranged around a system of ducts opening into the cephalic haemocoel. The ducts contain acidophil material which is secreted by the gland cells and numerous small cells which are perhaps haemocytes. The size of the lobulate glands relative to the size of the body increases as the animal matures, and it is possible that they are responsible for secreting some form of growth hormone. The cheek glands are situated beneath the epidermis of the lateral part of the head capsule and are composed of two different types of cells; their homology and function are unknown. The paired lateral sense-organs also lie beneath the cephalic epidermis, but each is a bowl-shaped structure composed of numerous bifid sensory cells. The latter are innervated and each contains a bifid sensory rod. The distal prolongations of the sensory cells are interpolated between accessory cells whose cytoplasm contains granules. The latter may be either proximally or distally situated in the cell but are not composed of pigment. The definitive structure of these senseorgans is only attained in the sexually mature insect and they are only represented by disorganized groups of cells in the nymphs. Preliminary experiments are described which indicate that the lateral sense-organs are not concerned with the perception of optical stimuli and their function and similarities to other insect sense-organs are discussed.


Author(s):  
Roy Skidmore

The long-necked secretory cells in Onchidoris muricata are distributed in the anterior sole of the foot. These cells are interspersed among ciliated columnar and conical cells as well as short-necked secretory gland cells. The long-necked cells contribute a significant amount of mucoid materials to the slime on which the nudibranch travels. The body of these cells is found in the subepidermal tissues. A long process extends across the basal lamina and in between cells of the epidermis to the surface of the foot. The secretory granules travel along the process and their contents are expelled by exocytosis at the foot surface.The contents of the cell body include the nucleus, some endoplasmic reticulum, and an extensive Golgi body with large numbers of secretory vesicles (Fig. 1). The secretory vesicles are membrane bound and contain a fibrillar matrix. At high magnification the similarity of the contents in the Golgi saccules and the secretory vesicles becomes apparent (Fig. 2).


Author(s):  
Anne Phillips

No one wants to be treated like an object, regarded as an item of property, or put up for sale. Yet many people frame personal autonomy in terms of self-ownership, representing themselves as property owners with the right to do as they wish with their bodies. Others do not use the language of property, but are similarly insistent on the rights of free individuals to decide for themselves whether to engage in commercial transactions for sex, reproduction, or organ sales. Drawing on analyses of rape, surrogacy, and markets in human organs, this book challenges notions of freedom based on ownership of our bodies and argues against the normalization of markets in bodily services and parts. The book explores the risks associated with metaphors of property and the reasons why the commodification of the body remains problematic. The book asks what is wrong with thinking of oneself as the owner of one's body? What is wrong with making our bodies available for rent or sale? What, if anything, is the difference between markets in sex, reproduction, or human body parts, and the other markets we commonly applaud? The book contends that body markets occupy the outer edges of a continuum that is, in some way, a feature of all labor markets. But it also emphasizes that we all have bodies, and considers the implications of this otherwise banal fact for equality. Bodies remind us of shared vulnerability, alerting us to the common experience of living as embodied beings in the same world. Examining the complex issue of body exceptionalism, the book demonstrates that treating the body as property makes human equality harder to comprehend.


2013 ◽  
Vol 7 (1) ◽  
pp. 7
Author(s):  
Doni Budiono

The  authority  of justice in Indonesia  is executed by  the Supreme Courts and  the  justice  boards/body under the Supreme Courts, including  the general  justice, religious affairs justice, military justice,  state administration  justice,  and  the Constitution Court. According to  certainty in  the Act of  Tax Court, Article1, clause  (5),  tax  dispute   refers to the legal dispute arising in the  taxation  affairs between the  tax payer or the  body  responsible for the  tax with   the government   executives  ( Directorate General of Tax) as the consequence of   the issue of  the decree for the  appeal  to the Tax  Court in accordance with the  tax Act, including the  charge  against the  execution of collection   in accordance with the  Act of Tax Collection by force. The  formation of Tax Court is  designed by  the Executives, in this case, the  Department of Finance, specifically  the Directorate   General  of Tax  which has the right to issue  law  more technical about  tax accord to Article 14,  letter A,  President Decree  no. 44  year 1974,  concerning the  basic  organization of the Department.  Based on  it,  it  is clear that  in addition to execute the government  rules and policy,  this body  has to execute judicial   rules and policy. This is against the  principles of  Judicative  Power/Authority in Indonesia,  which   clearly states that this body  should be under the Supreme Court.   Therefore. It is suggested that   the Act  No UU no.14 Year 2012 concerning  Tax Court   be revised  in accordance with the system of  Power Division  of Justice  as  stated in 45 Constitutions.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1477-1481
Author(s):  
Ishwari Gaikwad ◽  
Priyanka Shelotkar

The current world situation is both frightening and alarming due to the massive disruption caused by the Covid-19 pandemic. The next few days are censorious as we need to be very precautious in our daily regimen as well as dietary habits. Ayurveda offers knowledge about food based on certain reasoning. Indecent food custom is the chief cause for the rising development of health disorders in the current era. In classical texts of Ayurveda, the concept of diet explained well, ranging from their natural sources, properties and specific utility in pathological as well as physiological manner. In this work, the review of the relevant literature of Ahara (Diet) was carried out from Charak Samhita and other texts, newspapers, articles, web page related to the same.  Every human being is unique with respect to his Prakriti (Physical and mental temperament), Agni (Digestive capacity), Koshtha  (Nature of bowel) etc. For that reason, the specificity of the individual should be kept in mind. Ahara, when consumed in the appropriate amount at the right moment following all Niyamas (Guidelines) given in Ayurveda texts, gives immunity and keeps the body in a healthy state during pandemics such as Covid-19. Ultimately, this will help the human body to maintain its strength for life. This article reviews the concept of diet viz. combination of foods, their quantity and quality, methods of preparation and processing, which are to be followed during pandemics and are essential in maintenance and endorsement of health and preclusion of diseases.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 832-838
Author(s):  
Roshna Sukheoji Bhutada ◽  
Renu Rathi ◽  
Devyani Dasar

WHO declared Covid 19 /SARS -COV-2 as a global pandemic.Till date, there is no medicine for COVID-19. If the Infection arises in the body then the defence mechanism activated against infection. A recent study suggests that temporarily augmenting the body's immune system in the early stages of COVID-19 can help patient to avoid severe symptoms as it is rightly said prevention is better than cure. Ayurveda approaches to develop physiological reactions to facilitate immunity. Planning of diet is most important to boost immunity.As per many researches to provide supplementary food which contains Zinc, Vitamin C,Vitamin D and immunity boosting foodsuch as citrus natural products, custard apple, apple, papaya is among the Fruits. Vegetables include broccoli, onion, garlic and green leafy vegetables. Nuts, ginger, turmeric, pepper, egg yolk, shellfish, mushroom. The need of the hour is a quick boost to immune system to keep it fit, fighting. One should get the right amount of nutrients from the diet, supplementation regimen to boost immune system.In this review, there are few common supplements and super food studies have been included. It might be a torch bearer as sample menu and their alternatives are given for a normal adult. Needy may change contemplated according to age, sex, body mass index and daily physical activities.


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