Video Praktikum Systema Endocrinon
Summary
TLDRThis video script is a comprehensive guide to the human endocrine system, which regulates metabolism alongside the nervous system to maintain homeostasis. It explains the differences between neurotransmitters and hormones, the latter being produced by endocrine glands with high vascularization to distribute hormones throughout the body. The script delves into the pituitary gland, thyroid gland, and pancreatic islets, highlighting their locations, structures, and functions, including the production of hormones like insulin and thyroid hormones.
Takeaways
- π¬ The video discusses the endocrine system, which controls metabolism and works alongside the nervous system to maintain body homeostasis.
- π Neurons produce neurotransmitters that transmit signals quickly, while endocrine glands produce hormones that act more slowly.
- π©Ί Endocrine glands are invaginations of epithelial tissue with high vascularization, allowing hormones to be released into the bloodstream.
- π Hormones circulate throughout the body, affecting cells far from the gland that produced them.
- π§ The pituitary gland, or hypophysis, is located in the sella turcica of the sphenoid bone and consists of the anterior and posterior parts.
- π The anterior pituitary contains chromophil cells, which are composed of acidophil and basophil cells, and chromophobes.
- 𧬠The posterior pituitary, or pars nervosa, is made up of neural endings from the hypothalamus and contains cells that store hormones.
- π‘οΈ The thyroid gland is located in the neck and is composed of a stroma and parenchyma, which includes thyroid follicles and colloid surrounded by follicular cells.
- π₯ The islets of Langerhans in the pancreas are the endocrine part that produces hormones, visible as dark spots under a microscope.
- π΅ Victoria blue staining can detect the presence of insulin, causing it to appear blue, and can also differentiate between alpha and delta cells.
Q & A
What is the main function of the endocrine system?
-The endocrine system controls the body's metabolism and works alongside the nervous system to regulate the body's homeostasis.
How does the endocrine system differ from the nervous system in terms of action?
-The nervous system produces neurotransmitters that transmit impulses quickly, while the endocrine system produces hormones that act more slowly.
What is the role of vascularization in the endocrine system?
-High vascularization in the endocrine system allows hormones to be released into the bloodstream, affecting cells that are distant from the gland.
Where is the pituitary gland located?
-The pituitary gland is located in the hypophyseal fossa of the sphenoid bone.
What are the main parts of the pituitary gland mentioned in the script?
-The main parts of the pituitary gland mentioned are the anterior pituitary (pars distalis) and the posterior pituitary (neurohypophysis).
What types of cells are found in the anterior pituitary?
-The anterior pituitary contains chromophil cells, which are composed of acidophil and basophil cells, and chromophob cells.
What is the function of the neurohypophysis?
-The neurohypophysis is the neural part of the pituitary gland and contains the axon terminals where hormones are stored.
Where is the thyroid gland located?
-The thyroid gland is located in the anterior region of the neck, behind the cartilaginous thyroid cartilage.
What are the main components of the thyroid gland's structure?
-The thyroid gland's structure includes the stroma, which consists of a capsule and dense connective tissue, and the parenchyma, which is made up of thyroid follicles and parafollicular cells.
What is the role of the islets of Langerhans in the pancreas?
-The islets of Langerhans are the endocrine part of the pancreas responsible for hormone production.
How can Victoria blue staining help in the study of the pancreas?
-Victoria blue staining can detect the presence of insulin, making it possible to visualize the islets of Langerhans as blue-colored structures.
What additional information can Victoria blue staining provide about the islets of Langerhans?
-Victoria blue staining can also differentiate between alpha and delta cells within the islets of Langerhans.
Outlines
π¬ Introduction to the Endocrine System
This paragraph introduces the endocrine system, explaining its role in controlling human metabolism and homeostasis alongside the nervous system. It contrasts the endocrine system with the nervous system, highlighting that while the latter uses neurotransmitters for fast communication, the endocrine system produces hormones that act more slowly. The paragraph also describes the endocrine system as consisting of ductless glands with high vascularization, allowing hormones to be released into the bloodstream and influence distant cells. The focus then shifts to specific endocrine glands like the pituitary, thyroid, and pancreatic islets, detailing their locations and functions within the body.
Mindmap
Keywords
π‘Endocrine System
π‘Hormones
π‘Homeostasis
π‘Pituitary Gland
π‘Thyroid Gland
π‘Insulin
π‘Victoria Blue Staining
π‘Islets of Langerhans
π‘Neurotransmitters
π‘Hypothalamus
π‘Follicular Cells
Highlights
Introduction to the endocrine system and its role in controlling metabolism and homeostasis in the human body.
Difference between the endocrine and nervous systems: the former produces hormones, the latter neurotransmitters.
Hormones act slower and have a widespread effect due to high vascularization of endocrine glands.
Endocrine glands are invaginations of epithelial tissue with high vascularization.
Hormones are released into the bloodstream to affect cells far from the gland.
The pituitary gland (hypophysis) is located in the sphenoid bone's sella turcica.
The anterior pituitary (pars distalis) is the largest part, containing chromophil and chromophobe cells.
The posterior pituitary (neurohypophysis) is an extension of the hypothalamus, storing hormones.
Herring bodies are nerve endings in the posterior pituitary, accumulating hormones.
Pituitary cells (pituisit) support and moisten the axons in the neurohypophysis.
The thyroid gland is located in the anterior neck region, with a soft parenchyma containing follicles and colloids.
Insulin is detected using Victoria blue staining, which turns the islets of Langerhans blue.
Victoria blue staining also differentiates between alpha and delta cells in the islets.
The pancreas has an endocrine function, producing hormones in the islets of Langerhans.
The islets of Langerhans are visible as endocrine tissue within the pancreas under light magnification.
The endocrine system's practical application in understanding metabolism and hormonal regulation.
Transcripts
Hai
[Musik]
selamat datang di praktikum histologi
pada video ini kita akan mempelajari
mengenai Sistem main doktrinal
sistem endokrin merupakan sistem tubuh
yang mengendalikan aktivitas metabolisme
manusia sistem endokrin bersama dengan
sistem refocus berperan dalam
mengendalikan sistem homeostasis tubuh
manusia
Adapun bedanya sistem dan proses
menghasilkan
neurotransmitter yang menghantarkan
impuls saraf dengan cepat sedangkan
endokrin menghasilkan senyawa yang
disebut hormon memiliki aksi yang slow
akting sistem ini merupakan kelenjar
buntu yang merupakan invaginasi dari
jaringan epitel kemudian jaringan
endokrin memiliki vaskularisasi yang
tinggi sehingga memungkinkan hormon
dilepaskan kedalam peredaran darah Hai
peredaran darah dari
sistem tubuh mengakibatkan hormon bisa
mempengaruhi sel yang jauh letaknya dari
glandula tersebut Putu praktikum kali
ini kalian akan mempelajari
hipofisis atau pituitary kemudian
kelenjar tiroid serta insula fun
kreatika
glandula pituitari atau hipofisis
terletak pada fossa hipofisis alis pada
Sela tursika o sphenoidale
pada hipofisis anterior terdapat pars
distalis yang merupakan bagian yang
paling besar
pada pars distalis terdapat sel kromo
feel yang terdiri dari sel asidofil dan
basofil dan kromofob
hipofisis posterior atau partner fossa
terdiri atas neurohipofisis yaitu
akhiran saraf dari hipotalamus terdapat
dua macam sel yaitu badan herring yang
merupakan akhiran saraf tempat akumulasi
hormon Hai dan pituisit yang tersebar
disekitar akson dan berperan untuk
mendukung dan melembabkan akson
glandula thyroidea terletak di Angry or
cartilago thyroidea
pada perbesaran lemah dijumpai stroma
yang terdiri dari kapsula dan rapi Kula
parenkima terdiri dari folikel tiroid
masa koloid yang dikelilingi sel
folikuler dan kapiler darah
pada perbesaran yang lebih besar
terlihat sel parafollicular atau sel
Hai insula pankreatika merupakan pas
endokrin pankreas yang berfungsi
menghasilkan hormon pada perbesaran
lemah terlihat insula pankreatika yang
berperan sebagai endokrin pada pankreas
pewarnaan Victoria blue dapat mendeteksi
keberadaan insulin sehingga untuk pak
sendok linknya akan terlihat berwarna
biru pada selfie tanya dengan pewarnaan
Victoria blue pula juga dapat membedakan
tampakkan Selva beta dan delta H
[Musik]
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