Histology and Histopathology
Epithelial tissue histology can be tricky — it’s everywhere around our body. In this video, I’ll teach you most of the different types of epithelium seen under a microscope including squamous, cuboidal, columnar, transitional, and keratinized epithelium.
☠️NONE OF THE INFORMATION IN THIS VIDEO SHOULD BE USED AS MEDICAL ADVICE OR OPINION. IT IS FOR GENERAL EDUCATION AND ENTERTAINMENT☠️
🔗 L I N K S 🔗
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📜 S O U R C E S 📜
A full annotated, fact checked version of the script can be found here:
https://www.patreon.com/posts/45809032
💊A B O U T 💊
Hi, I’m Patrick. I’m a freelance science writer based in the San Francisco Bay Area. I hold a bachelor’s degree in Athletic Training and a master’s in clinical exercise physiology. I used to work in the clinical setting as a certified athletic trainer, physical therapy aide, and a certified strength and conditioning specialist. After working in the clinical setting, I went back to school and became a teacher. The goal of my content is to help normal people, not just pre-med students, learn about the human body. That might mean explaining a topic from an anatomy class or exploring a topic from medical history.
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If you’d like to sponsor a video or have other business inquiries:
patkellyteaches [at] gmail.com
#corporis #anatomy #medicalhistory
The spleen is the largest lymphoid organ. It receives blood from the splenic artery and is the only lymphoid organ that primarily filters blood instead of lymph.
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Medical disclaimer: Knowledge Diffusion Inc (DBA Osmosis) does not provide medical advice. Osmosis and the content available on Osmosis's properties (Osmosis.org, YouTube, and other channels) do not provide a diagnosis or other recommendation for treatment and are not a substitute for the professional judgment of a healthcare professional in diagnosis and treatment of any person or animal. The determination of the need for medical services and the types of healthcare to be provided to a patient are decisions that should be made only by a physician or other licensed health care provider. Always seek the advice of a physician or other qualified healthcare provider with any questions you have regarding a medical condition. © 2023 Elsevier. All rights reserved.
In this episode of Crash Course Anatomy & Physiology, Hank gives you a brief history of histology and introduces you to the different types and functions of your body's tissues.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
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Chapters:
Introduction 00:00
Nervous, Muscle, Epithelial & Connective Tissues 1:23
History of Histology 2:07
Nervous Tissue Forms the Nervous System 5:17
Muscle Tissue Facilitates All Your Movements 7:00
Identifying Samples 9:03
Review 9:48
Credits 10:22
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Video giving an overview of histology, slide preparation, histological stains, and types of microscopy. This video is a part of our Histology Video Course (https://youtube.com/playlist?l....ist=PLnr1l7WuQdDynxT
Specific topics: what is histology, general composition of tissues, histotechnology: how histology slides are prepared, histology stains, immunohistochemistry, light microscopy vs electron microscopy, and pro tips for learning histology
Additional YouTube Content
Anatomy Videos: https://youtube.com/playlist?l....ist=PLnr1l7WuQdDz2dK
Biochemistry videos: https://youtube.com/playlist?l....ist=PLnr1l7WuQdDzCUC
DaVinci Cases Videos: https://youtube.com/playlist?l....ist=PLnr1l7WuQdDyJUl
The DaVinci Hour Podcast: https://youtube.com/playlist?l....ist=PLnr1l7WuQdDwSm9
DaVinci Academy Website: https://www.dviacademy.com/
© 2023 Elsevier. All rights reserved. What are lymph nodes? Lymph nodes are small secondary lymphoid organs that are found along lymphatic vessels throughout the body.
Find our full video library only on Osmosis Prime: http://osms.it/more.
Join over 3 million current & future clinicians who learn by Osmosis, and over 130 universities around the world who partner with us to make medical and health education more engaging and efficient. We have unparalleled tools and materials to prepare you to succeed in school, on board exams, and as a future clinician. Sign up for a free trial at http://osms.it/more. If you're interested in exploring an institutional partnership, visit osmosis.org/educators to request a personalized demo.
Follow us on social:
Facebook: http://osms.it/facebook
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Our Vision: Everyone who cares for someone will learn by Osmosis.
Our Mission: To empower the world’s clinicians and caregivers with the best learning experience possible. Learn more here: http://osms.it/mission
Medical disclaimer: Knowledge Diffusion Inc (DBA Osmosis) does not provide medical advice. Osmosis and the content available on Osmosis's properties (Osmosis.org, YouTube, and other channels) do not provide a diagnosis or other recommendation for treatment and are not a substitute for the professional judgment of a healthcare professional in diagnosis and treatment of any person or animal. The determination of the need for medical services and the types of healthcare to be provided to a patient are decisions that should be made only by a physician or other licensed health care provider. Always seek the advice of a physician or other qualified healthcare provider with any questions you have regarding a medical condition. © 2023 Elsevier. All rights reserved.
A complete organized library of all my videos, digital slides, pics, & sample pathology reports is available here: https://kikoxp.com/posts/5084 (dermpath) & https://kikoxp.com/posts/5083 (bone/soft tissue sarcoma pathology)
Topics discussed:
Epidermis:
Layers of epidermis: 0:10
Melanocytes vs Keratinocytes: 5:16
Langerhans cells: 10:10 & 33:30 & 57:30
Dermis:
Papillary and reticular dermis: 11:50
Three types of white empty spaces on a slide: vessels, glands/ducts/cysts, or artifact: 15:25
Blood vessels & nerves: 18:24 & 48:50 & 58:59
Arrector pili & other dermal smooth muscle: 20:00
Adnexal:
Sebaceous gland: 21:10
Hair follicle 23:14
Eccrine sweat glands and ducts 24:45 & 50:00
Gland/duct vs blood vessel 27:20 & 48:50
Apocrine glands: this video https://kikoxp.com/posts/7837 (at 12:30)
Acrosyringium: this video https://kikoxp.com/posts/7837 (at 10:00)
Three types of pink bundles: smooth muscle, nerve, dense connective tissue: 27:50
Acral skin (palm sole) with contact dermatitis 29:37
Parakeratosis 30:00
Perivascular lymphocytes 30:40
Eosinophils vs neutrophils 31:20
Spongiosis with desmosome keratinocyte spines 32:10
Spongiotic vesicles with Langerhans cells 33:30
Normal acral skin (palm & sole) with stratum lucidum 34:20
Normal glomus body/apparatus (canal of Sucquet-Hoyer) 35:40
Nerve 36:46 & 51:50
Adipose tissue (white fat cells) in subcutis with Lochkern 37:55
Normal scalp skin with large anagen hair follicles: 39:30
Hair follicle anatomy (bulb/matrix, inner root sheath, outer root sheath, hair shaft, isthmus, infundibulum): 40:55 (labeled images):
https://kikoxp.com/posts/3661 & https://kikoxp.com/posts/7899
Pacinian corpuscle 50:40
Meissner corpuscle 1:02:28
Dense regular connective tissue (Fascia/Tendon/Ligament) vs Smooth Muscle 53:00
Basic Normal Skin Immunohistochemistry:
-cytokeratin in epidermis: 55:33
-S100 in melanocytes and Langerhans cells and adipocytes: 57:30
-Desmin in smooth muscle (arrector pili and blood vessels): 58:59
-CD31 in endothelial cells of blood vessels: 59:33
-SOX-10 in melanocytes: 1:00:40
Digit/Finger/Toe histology (amputation for subungual acral melanoma) 1:04:10 & 1:08:30
-bone 1:05:40
-glomus body 1:05:15
-tendon/ligament 1:06:10
-artery 1:06:58
-fingernail/toenail 1:08:54
-acrosyringium 1:10:45
Solar elastosis (what wrinkles look like microscopically!) 1:11:50
Other videos you might like:
Tendon vs Nerve Histology Made Simple with the Ramen Noodle Sign (of Fulton) video: https://kikoxp.com/posts/4466
Melanocytes vs Keratinocytes made easy video: https://kikoxp.com/posts/3802
Blood Vessel vs Gland vs Artifact Made Easy video: https://kikoxp.com/posts/4808
The basic normal structures of the skin discussed and described by a dermatopathologist. This material is intended for use by medical students, junior pathology or dermatology residents, or for anyone else studying normal human histology. Special thanks to two of my medical students at UAMS for helping make this video possible. Miki Lindsey convinced me that I really needed to sit down and record this video. Akash Patel took time to edit the video and make it ready for YouTube. My sincere thanks to both of them for helping me overcome procrastination.
Huge thanks to Abigail Cline, a medical student at Medical College of Georgia, for volunteering to type a transcript of this ENTIRE video (over 14,000 words!) so that I could provide closed caption subtitles for those with hearing impairments and for those who may need assistance in understanding spoken English (particularly given how quickly I speak!). You can access a text version of her transcript of my video here: https://kikoxp.com/posts/5390
Correction - I made a mistake in the video. I said that sebaceous gland secretions are turned into smelly substances by bacteria and that this makes body odor. That is incorrect. That is actually true of APOCRINE gland secretions not sebaceous secretions.
Also, in the past I used "keratinocyte" and "squamous cell" interchangeably (this is because in dermatopathology, we see and talk about squamous cell carcinomas all the time, and those tumors are composed of keratinocytes). But technically, in normal skin histology, "squamous cell" refers only to the flattened keratinocytes in the superficial epidermis. Thankfully, a histology PhD colleague pointed this out to me and corrected my lazy nomenclature!
Please check out my Soft Tissue Pathology & Dermatopathology survival guide textbooks: http://bit.ly/2Te2haB
This video is geared towards medical students, pathology or dermatology residents, or practicing pathologists or dermatologists. Of course, this video is for educational purposes only and is not formal medical advice or consultation.
Presented by Jerad M. Gardner, MD. Please subscribe to my channel to be notified of new pathology teaching videos.
Follow me on:
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The four types of tissue you find in your body are muscles, nervous tissue, epithelial tissue, and connective tissue. But they all look really similar at first glance under a microscope. The goal of this video is to clarify some of those tissue types and give you real world examples.
Check out Kenhub here: http://khub.me/kenhubcorporis
Again, it's not an affiliate link, I just like them.
0:00 Intro
1:09 Divisions of Tissues
1:39 Muscle
3:26 Epithelial
5:41 Nervous
7:03 Connective
☠️NONE OF THE INFORMATION IN THIS VIDEO SHOULD BE USED AS MEDICAL ADVICE OR OPINION. IT IS FOR GENERAL EDUCATION AND ENTERTAINMENT☠️
🔗 L I N K S 🔗
📱Instagram: https://www.instagram.com/patkellyteaches/
🐦Twitter: https://twitter.com/PatKellyTeaches
💰Patreon: https://www.patreon.com/corporis
📽 O T H E R V I D E O S 📽
⚰️Medical History playlist: https://www.youtube.com/playli....st?list=PL2rpvfNeooN
🔬Anatomy Basics playlist: https://www.youtube.com/playli....st?list=PL2rpvfNeooN
💪Kinesiology and Biomechanics playlist: https://www.youtube.com/playli....st?list=PL2rpvfNeooN
📜 S O U R C E S 📜
A full annotated, fact checked version of the script can be found here: https://www.patreon.com/posts/....fact-checked-for-389
💊A B O U T 💊
Hi, I’m Patrick. I’m a freelance science writer based in the San Francisco Bay Area. I hold a bachelor’s degree in Athletic Training and a master’s in clinical exercise physiology. I used to work in the clinical setting as a certified athletic trainer, physical therapy aide, and a certified strength and conditioning specialist. After working in the clinical setting, I went back to school and became a teacher. The goal of my content is to help normal people, not just pre-med students, learn about the human body. That might mean explaining a topic from an anatomy class or exploring a topic from medical history.
💻 C O N T A C T 💻
If you’d like to sponsor a video or have other business inquiries:
patkellyteaches [at] gmail.com
#corporis #anatomy #medicalhistory
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Discover A Simplified Approach to Master the Complexity of Anatomy with me, Dr. David Morton ... The Noted Anatomist!
This video tutorial discusses an Introduction to Histology (study of tissues):
0:00. Intro
0:35. Hierarchical organization of living matter
1:56. H&E stains
3:00. Epithelium overview (characteristics and classifying scheme)
- 9:12. Simple squamous epithelium
- 11:05. Simple cuboidal epithelium
- 12:20. Simple columnar epithelium
- 13:36. Stratified squamous epithelium
- 15:51. Urinary epithelium (transitional epithelium)
- 16:45. Pseudo-stratified ciliated columnar epithelium (respiratory epithelium)
18:55. Connective tissue overview (characteristics and classifying scheme)
- 21.14. Connective tissue proper (loose CT, dense irregular CT, dense regular CT, adipose tissue)
- 24:50. Cartilage (hyaline cartilage, elastic cartilage, fibrocartilage)
- 26:04. Bone (osteoblasts, osteocytes, osteoclasts, calcium ...)
- 27:34. Blood (RBC, WBC, platelet, plasma)
28:54. Muscle tissue (skeletal muscle, cardiac muscle, smooth muscle)
32:54. Nervous tissue (neurons and glial cells)
36:58. In-a-Nutshell
37:07. Acknowledgements
For a more detailed study of histology go to The Histology Wizard: https://www.youtube.com/channe....l/UCAeLLruy9RkUWaW_r
Cells may have slender extensions of the cell membrane to form cilia or the smaller extensions called microvilli. The microscopic microvilli effectively increase the surface area of the cell and are useful for absorption and secretion functions. A dramatic example is the human small intestine. The tissue has small fingerlike extensions called villi which are collections of cells, and those cells have many microvilli to even further increase the available surface area for the digestion process. According to Audesirk & Audesirk, this can give an effective surface area of about 250 square meters for absorption.
Cell Organelles in 3D
http://milagroparaelacne.plus101.com
---Como Quitar Acne Cara. Existe una CAUSA PRINCIPAL DEL ACNÉ. Y no siempre un producto para el acné ataca esta causa. Esto significa que, si bien podrías obtener un beneficio de lociones, u otros productos o terapias, nunca curarás tu acné con ellos.
Es un poco como tener un techo con goteras y "solucionarlo" poniendo recipientes para recoger el agua de lluvia que cae del techo. Para solucionar adecuadamente el techo con goteras, se debe corregir la causa de raíz, que es el agujero en el techo.
Entonces... ¿Cuál Es La Principal
Causa Del ACNE?
La causa del acné es un DESEQUILIBRIO HORMONAL. Esto es algo que las empresas del acné nunca te dirán...
... Sin embargo, saber la causa del acné es una cosa. Descubrir la forma de eliminar eficazmente esta causa es otra cosa...
Como, Quitar, Acne, Cara, manchas de acne, quitar el acne, cicatrices de acne, como quitar granos, como quitar espinillas, cicatrices de acne, eliminar el acne, como eliminar barros, eliminar los barros,
Histology of Uterus
Histology of Thin Skin
Histology of Thick Skin
Histology of Active Breast
Histology of Vas Deferens
Histology of vagina
