which of the following is also called a ductless gland?
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The endocrine system is a control system of ductless glands that secrete chemical "instant messengers" called hormones that circulate within the body via the bloodstream to affect distant cells within specific organs. \nPineal gland is a ductless gland\nSalivary glands, sweat glands and glands within the gastrointestinal tract are known as Exocrine glands and they are \nnot ductless glands.\nPlease see the webpages for more details on Pineal gland and endocrine gland.
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Endocrine Pituitary Gland \nThe pituitary gland, or hypophysis, is an endocrine gland about the size of a pea that sits in the small, bony cavity (sella turcica) at the base of the brain. Its posterior lobe is connected to a part of the brain called the hypothalamus via the infundibulum (or stalk), giving rise to the tuberoinfundibular pathway. The posterior lobe is thus derived from neural ectoderm while the anterior lobe is derived from oral ectoderm. The anterior pituitary lobe receives releasing hormones from the hypothalamus via a portal vein system. The pituitary gland secretes hormones regulating a wide variety of bodily activities, including trophic hormones that stimulate other endocrine glands. For a while, this led scientists to call it the master gland, but now we know that it is in fact regulated by hormones released from the hypothalamus. It is physically attached to the brain by the pituitary, or hypophyseal stalk connected with the median eminence.\nThe pituitary gland is divided into two sections: the anterior lobe (adenohypophysis) and the posterior lobe (neurohypophysis). The posterior pituitary is, in effect, a projection of the hypothalamus. It does not produce its own hormones, but only stores and releases the hormones oxytocin and antidiuretic hormone (ADH - also known as vasopressin).\nThe anterior pituitary secretes growth hormone, prolactin, follicle-stimulating hormone, luteinizing hormone, thyroid-stimulating hormone, adrenocorticotropic hormone, endorphins and other hormones. It does this in response to a variety of chemical signals from the hypothalamus, including TRH (thyrotropin-releasing hormone), CRH (corticotropin-releasing hormone), DA (dopamine, "prolactin inhibiting factor"/PIF), GnRH (gonadotropin-releasing hormone), and GHRH (growth hormone releasing hormone), which travel to the anterior lobe by way of a special capillary system from the hypothalamus, down the median eminence, to the anterior lobe. These hormones from the hypothalamus cause release of the respective hormone from the pituitary, i.e. TRH releases TSH, CRH releases ACTH, GnRH releases FSH and LH and GHRH causes the release of GH except for DA, which constantly inhibits the release of prolactin normally. There is also an interaction between the hormones from the hypothalamus, i.e. TRH induces the release of prolactin. The control of release of hormones from the pituitary is in a negative feedback loop. Their release is inhibited by increasing levels of hormones from the target gland on which they act.\nThere is also an intermediate lobe in many animals. In adult humans it is just a thin layer of cells between the anterior and posterior pituitary, nearly indistinguishable from the anterior lobe. The intermediate lobe produces melanocyte-stimulating hormone (MSH), although this function is often (imprecisely) attributed to the anterior pituitary.\nFunctions of the pituitary are:\nThe pituitary gland helps control the following body processes of the pituitary gland are:\nGrowth \nBlood pressure \nSome aspects of pregnancy and childbirth \nBreast milk production \nSex organ functions in both women and men \nThyroid gland function \nThe conversion of food into energy (metabolism) \nWater and osmolarity regulation in the body
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The danglely thing in the back of your throat, that looks like a punching bag is called the "uvula".  The tonsils are the larger glands on either side of the back of your throat.
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The glands are found in and around your mouth and throat. We call the major salivary glands the parotid, submandibular, and sublingual glands
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The pituitary gland is sometimes called the "master" gland of the endocrine system, because it controls the functions of the other endocrine glands. The pituitary gland is no larger than a pea, and is located at the base of the brain. The gland is attached to the hypothalumus (a part of the brain that affects the pituitary gland) by nerve fibers. The pituitary gland itself consists of three sections:\n\nthe anterior lobe \nthe intermediate lobe \nthe posterior lobe \nFunctions of the pituitary gland:\nEach lobe of the pituitary gland produces certain hormones.\n\nanterior lobe:\n\ngrowth hormone \nprolactin - to stimulate milk production after giving birth \nACTH (adrenocorticotropic hormone) - to stimulate the adrenal glands \nTSH (thyroid-stimulating hormone) - to stimulate the thyroid gland \nFSH (follicle-stimulating hormone) - to stimulate the ovaries and testes \nLH (luteinizing hormone) - to stimulate the ovaries or testes\n\nintermediate lobe:\n\nmelanocyte-stimulating hormone - to control skin pigmentation \nposterior lobe:\n\nADH (antidiuretic hormone) - to increase absorption of water into the blood\nby the kidneys \noxytocin - to contract the uterus during childbirth and stimulate milk production
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Hi, Padillo:\n\nSalivary amylase is a digestive enzyme with the purpose to help your body digest food (starches, in particular).  The enzyme exists in saliva.\n\nSaliva isn't produced by an organ, per se.  It's produced by the salivary glands which exist on either side of the mouth.\n\n"The parotid glands are located in front of the ears, the sublingual glands are located under the tongue, and the submandibular glands are located towards the back of the mandible, or lower jaw. Meanwhile, minor saliva glands sit throughout the lips, inner cheeks, and mouth and throat linings."
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A Bartholin's gland cyst is a swollen fluid-filled lump that develops from a blockage of one of the Bartholin's glands, which are small glands located on each side of the opening to the vagina
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No matter what the vocational institute tells you, human skin contains three types of sweat (sudoriferous) glands: sebaceous, eccrine and apocrine. This is what they do:\n\nSebaceous Glands: Moisturizing Skin\nThe sebaceous glands -- or "oil glands" -- are located primarily on the scalp, face, chest and back, numbering approximately 3,000 in each square inch of facial skin. Sebaceous glands produce sebum, a natural skin oil which is a complex mixture of fats and waxes. These glands are present at birth, but begin to secrete sebum actively following the onset of puberty. \n\nLocated at the side of hair follicles, these glands secrete sebum through a small duct inside the hair shaft. The sebum locks in the skin's natural moisture and prevents it from drying out. \n\nEccrine Glands: Body Temperature\nThe average human has between two and three million eccrine glands all over the body, but concentrated in the palms, soles and underarms. Exercise, hot weather, fever and emotional stress stimulate eccrine sweating. The colorless and mainly odorless sweat produced by eccrine glands is mostly water, but also contains inorganic chlorides and low levels of fatty acids. Eccrine sweat aids in regulating body cooling and in the removal of some waste products. \n\nApocrine Glands: The Odor Factor\nApocrine glands are located primarily in the underarm and genital regions. There are approximately 2,000 apocrine glands in the average human body. Like sebaceous glands, apocrine glands secrete their contents to the skin surface through hair follicles. \n\nApocrine glands secrete a milky sweat that is rich in organic materials. This secretion, when broken down by bacteria on the surface of the skin, is the chief cause of body odor. This sweat is produced in response primarily to hormonal stimulation and secondarily to emotional stimuli such as fear and pain. Apocrine glands are present from birth, but do not mature and secrete until the onset of puberty. Therefore, body odor is not usually a problem for children, and is rarely a problem for the elderly as the secretions of apocrine glands are reduced with age.
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The endocrine system is a control system of ductless glands that secrete chemical messengers called hormones that circulate within the body via the bloodstream to affect distant organs. Hormones act as "messengers", and are carried by the bloodstream to different cells in the body, which interpret these messages and act on them. The endocrine system does not include exocrine glands such as salivary glands, sweat glands and glands within the gastrointestinal tract.\n\nThe field of medicine that deals with disorders of endocrine glands is endocrinology, a branch of the wider field of internal medicine.\n\nHypothalamus \nThyrotropin-releasing hormone (TRH) \nGonadotropin-releasing hormone (GnRH) \nGrowth hormone-releasing hormone (GHRH) \nCorticotropin-releasing hormone (CRH) \nSomatostatin \nDopamine \nPituitary gland \nAnterior lobe (adenohypophysis) \nGH (human growth hormone) \nPRL (prolactin) \nACTH (adrenocorticotropic hormone) \nTSH (thyroid-stimulating hormone) \nFSH (follicle-stimulating hormone) \nLH (luteinizing hormone) \nPosterior lobe (neurohypophysis) \nOxytocin \nADH (antidiuretic hormone) \nPineal gland \nMelatonin \nThyroid gland \nThyroxine (T4), a form of thyroid hormone \nTriiodothyronine (T3), a form of thyroid hormone \nCalcitonin \nParathyroid gland \nParathyroid hormone (PTH) \nHeart \nAtrial-natriuretic peptide (ANP) \nStomach and intestines \nGastrin \nSecretin \nCholecystokinin (CCK) \nSomatostatin \nNeuropeptide Y \nLiver \nInsulin-like growth factor \nAngiotensinogen \nThrombopoietin \nIslets of Langerhans in the pancreas \nInsulin \nGlucagon \nSomatostatin \nAdrenal glands \nAdrenal cortex \nGlucocorticoids - cortisol \nMineralocorticoids - aldosterone \nAndrogens (including testosterone) \nAdrenal medulla \nAdrenaline (epinephrine) \nNoradrenaline (norepinephrine) \nKidney \nRenin \nErythropoietin (EPO) \nCalcitriol \nSkin \nCalciferol (vitamin D3) \nAdipose tissue \nLeptin \n\nIn males only\nTestes \nAndrogens (testosterone) \n\nIn females only\nOvarian follicle \nOestrogens \nTestosterone \nCorpus luteum \nProgesterone \nPlacenta (when pregnant) \nProgesterone \nHuman chorionic gonadotrophin (HCG) \nHuman placental lactogen (HPL) \n\nRole in disease\nDiseases of the endocrine system are common, such as diabetes mellitus and thyroid disease.\n\nEndocrineopathies can occur with any of these. Hypofunction can occur as result of loss of reserve, hyposecretion, agenesis, atrophy, destruction, etc. Hyperfunction can occur as result of hypersecretion, loss of suppression, tumor, hyperplasia, etc.\n\nEndocrineopathies are classified as primary, secondary, or tertiary.\n\nPrimary is target organ dysfunction and is normally associated with increased or decreased secretory hormones. Secondary is a dysfunction that originates elsewhere like the pituitary gland and is normally associated with increased or decreased production of trophic factors. Tertiary is associated with dysfunction of the hypothalamus and its releasing hormones.\n\nDiffuse Endocrine System\nOrgans aren't the sole way for hormones to be sent into the body; there are a host of specific cells which secrete hormones independently. These are called the "diffuse" endocrine system, and include myocytes in the heart (atria) and epithelial cells in the stomach and small intestines. In fact, if one were to classify any chemical excretions in the term "hormone," every cell in the human body could be considered a part of the endocrine system.
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Exocrine gland\n\nFrom Wikipedia, \nthe free encyclopedia.\n(Redirected from Exocrine system)\nJump to: navigation, search\nExocrine gland refers to glands that secrete their products via a duct. This is as opposed to endocrine glands that release their products directly into the circulatory system via the capillary network. Typical exocrine glands include sweat glands, salivary glands, mammary glands and many glands of the digestive system.
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Woman have organs on their chest's- large glands, the mammory glands that produce milk when they have a baby. These are the breasts (Slang: Knockers, T!ts, Boobs, Rack). The breasts are considered to be a private part on women, and I am not sure precisely why. By law, your private parts must be covered in public to avoid legal prosecution under indecent exposure laws. Mens breasts, which are much smaller and do not produce milk, are not considered private, so men are permitted so be seen without a shirt.
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Epithelial tissue consists of cells that form membranes, which cover &\nline body surfaces. In addition, epithelial tissue forms glands, which\neither secrete chemicals outside the membrane (exocrine glands) or\nsecrete chemicals (hormones) into the blood (endocrine glands)\n\nThe type found in the trachea of mammals is pseudostratified surface epithelium and is composed of differentiated cell phenotypes including basal, secretory and ciliated cells.
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There is a supporting ligament of the breast known as Coopers ligament. When I studied anatomy the teacher a Phd. in anatomy said the ligament is known as Coopers Droopers. Once it is elongated the breast will sag. Blame it on the weak force gravity.
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It's normal. You don't want them to go away. The bumps are where your milk ducts are so you can breast feed your baby. You can probably notice them more if you are aroused or if your nipples get cold.
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A subsciption to "Penthouse".\nA pet armadillo.\nAn apartment with views overlooking a nuclear waste treatment facility.\n\nThere are an  infinite number of possible answers like that. All perfectly correct. Organsims can continue to live without any of those charcteristics, and most do live without them.\n\nYou haven't given us enough information to answer the question.
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is a ductless, vertebrate gland that is not necessary for life but is closely associated with the circulatory system, where it functions in the destruction of old red blood cells and removal of other debris from the bloodstream, and also in holding a reservoir of blood. It is regarded as one of the centres of activity of the reticuloendothelial system. Until recently, the purpose of the spleen was not known. It is increasingly recognised that its absence predisposes to certain infections.\n\nThe absence of a spleen predisposes to some septicaemia infections. Vaccination and antibiotic measures are discussed under asplenia.\n\nSome people congenitally completely lack a spleen, although this is rare. \nSickle-cell disease can cause a functional asplenia (or autosplenectomy) by causing infarctions of the spleen during repeated sickle-cell crises. \nIt may be removed surgically (known as a splenectomy), and indeed often is. For example, it may be removed following abdominal injuries with rupture and hemorrhage of the spleen, or in the treatment of certain blood diseases (Idiopathic thrombocytopenic purpura, familial jaundice, hereditary spherocytosis, etc.), certain forms of lymphoma or for the removal of splenic tumours or cysts.
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Do you not mean spleen i don't know what a spline is but the human spleen is located in the upper left part of the abdomen, behind the stomach and just below the diaphragm. The spleen is a ductless, vertebrate gland that is closely associated with the circulatory system, where it functions in the destruction of old red blood cells in holding a reservoir of blood. It is regarded as one of the centres of activity of the reticuloendothelial system. Until recently, the purpose of the spleen was not known. It is increasingly recognized that its absence leads to a predisposition to certain infections.