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DrPhil
40 Views · 2 years ago

This tutorial is an introduction to the histology of the different tissues in the human body and the cells they are made of. Test yourself on our cells and tissue histology quiz at https://khub.me/jnhny

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A tissue is a group of cells that has a similar structure and acts together to perform one or more specific functions. In this tutorial, we will introduce you to the 4 main types of tissues in the human body: epithelial tissue, connective tissue, muscle tissue and nervous tissue. Epithelial tissue creates protective boundaries and is involved in the diffusion of ions and molecules, whereas connective tissue underlies and supports other tissue types.

Muscle tissue contracts to initiate movement in the body and nervous tissue transmits and integrates information through the central and peripheral nervous systems.

In this video tutorial we will take a closer look at the histology of the main cells and tissues under the microscope.

- 0:33 introduction to histology
- 1:22 epithelial tissue histology and types
- 5:45 function of the basement membrane
- 6:20 connective tissue histology and structure
- 10:53 muscle tissue and types of muscle cells
- 13:11 basics of the nervous system

Want to test your knowledge on the cells and tissues of the human body? Take this quiz: https://khub.me/jnhny

Why don't you jump into the introduction of the cell and its components with our free article next? Find it here: https://khub.me/apv1d

For more engaging video tutorials, interactive quizzes, articles and an atlas of Human anatomy and histology, go to https://khub.me/wcyx7

DrHouse
15,562 Views · 2 years ago

A 30 YEAR WOMEN WITH INTRACTABLE BILIARY COLIC

CASE REPORT: This 30 year women developed severe pain right upper quadrant for last 10 days. She sought many consultations and was given intravenous analgesics both (nonnarcortic and narcotic). Pain did not subside and she sought my consultation. Examination revealed her to be in agony with severe upper abdominal pain. General physical examination was otherwise unremarkable. Abdominal examination revealed mild tenderness in right hypochondrium with doubtful Murphy's sign. Urgent abdominal ultrasound showed a linear structure in bile ducts making slow writhing movements. The structure had an anechoic tube (alimentary canal) inside suggestive of a large Ascarid. Urgent ERCP was performed and bile duct and pancreatic duct cannulated selectively. Pancreatic duct was normal. Bile ducts contained a long linear filling defect extending from lower end of common bile duct to right intrahepatic duct (see image gallery for ERCP plate). A basket was introduced in the duct (see video clip) and the linear structure was engaged with soft closure and extracted out of the bile duct. Accompanying the basket was a 25 cm thick highly motile Ascarid. To recover the worm, endoscope was withdrawn along with the basket and the friendly catch. While the endoscope was being withdrawn and the basket was in the duodenum with the worm out of bile duct, patient indicated of relief of abdominal pain. A relook cholangiogram showed no more structures in the duct. She was given antihelmintic therapy and passed hundreds of worms with the feces. The worms recovered form stools were both male and female population and varied in length and size. However the lone worm recovered form bile ducts was the longest and the thickest male worm. The phenomenal behavior of this ubiquitous infection remains unexplained.

samer kareem
9,345 Views · 2 years ago

All forms of heparin (including low-molecular-weight heparin such as enoxaparin) must be stopped immediately in patients with suspected heparin-induced thrombocytopenia (HIT) while awaiting diagnostic confirmation. Patients with HIT remain at high risk of thrombosis even after discontinuation of heparin. Therefore, an alternate, rapidly acting, non-heparin anticoagulant such as direct thrombin inhibitor (eg, argatroban, bivalirudin) must be started immediately.

samer kareem
1,420 Views · 2 years ago

An enlarged spleen may cause: No symptoms in some cases. Pain or fullness in the left upper abdomen that may spread to the left shoulder. Feeling full without eating or after eating only a small amount from the enlarged spleen pressing on your stomach. Anemia. Fatigue. Frequent infections. Easy bleeding.

Scott Stevens
6,936 Views · 2 years ago

DVT Deep Venous Thrombosis

mohamed al emadi
7,623 Views · 2 years ago

laser hair removal in qatar

Scott
11,879 Views · 2 years ago

Overview HIV is a virus that affects the immune system, specifically the CD4 cells. The CD4 cells help protect the body from illness. Unlike other viruses that the immune system can fight off, HIV can’t be eliminated by the immune system. The symptoms of HIV can vary greatly from person to person. No two people with HIV will likely experience the exact same symptoms. However, HIV will generally follow this pattern: acute illness asymptomatic period advanced infection Acute illness Approximately 80 percent of people who contract HIV experience flu-like symptoms within two to four weeks. This flu-like illness is known as acute HIV infection. Acute HIV infection is the primary stage of HIV and lasts until the body has created antibodies against the virus. The most common symptoms of this stage of HIV include: body rash fever sore throat severe headaches Less common symptoms may include: fatigue swollen lymph nodes ulcers in the mouth or on the genitals muscle aches joint pain nausea and vomiting night sweats Symptoms typically last one to two weeks. Anyone who has these symptoms and thinks they may have contracted HIV should consider scheduling an appointment with their healthcare provider to get tested. Symptoms specific to men Symptoms of HIV are generally the same in women and men. One HIV symptom that is unique to men is an ulcer on the penis. HIV may lead to hypogonadism, or poor production of sex hormones, in either sex. However, hypogonadism’s effects on men are easier to observe than its effects on women. Symptoms of low testosterone, one aspect of hypogonadism, can include erectile dysfunction (ED).

samer kareem
12,572 Views · 2 years ago

Spermatogenesis is the process in which spermatozoa are produced from spermatogonial stem cells by way of mitosis and meiosis. The initial cells in this pathway are called spermatogonia, which yield primary spermatocytes by mitosis.

Mohamed Ibrahim
33,354 Views · 2 years ago

Short video of tension free repair of indirect inguinal hernia using a prolene mesh after herniotomy

DrPhil
38 Views · 2 years ago

Histology of all the different types of cartilage. This video is a part of our Histology Video Course (https://youtube.com/playlist?l....ist=PLnr1l7WuQdDynxT

All Histology Videos: https://youtube.com/playlist?l....ist=PLnr1l7WuQdDynxT

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samer kareem
6,108 Views · 2 years ago

Endovascular Aneurysm Repair Endovascular aneurysm repair (or endovascular aortic repair) (EVAR) is a type of endovascular surgery used to treat pathology of the aorta, most commonly an abdominal aortic aneurysm (AAA).

Scott Stevens
8,621 Views · 2 years ago

Posterior Iris Claw Lens Implantataion

Hieder Hieder
8,377 Views · 2 years ago

Arthrocentesis of the Knee

Mohamed Abeid
14,515 Views · 2 years ago

Spurting Gastric Varices (GOV 1), injected Cyanoacrylate (Histoacryl®).

Dr. Mohamed Abeid

From the " Endoscopy Atlas " :
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samer kareem
2,044 Views · 2 years ago

Cinematic Rendering of the Aorta Plus

Scott Stevens
11,025 Views · 2 years ago

Myocardial Infarction 3D Animation

M_Nabil
21,084 Views · 2 years ago

Superficial Palpation of the Abdomen

samer kareem
6,544 Views · 2 years ago

Restrictive cardiomyopathy (RCM) is a rare form of heart muscle disease that is characterized by restrictive filling of the ventricles. In this disease the contractile function (squeeze) of the heart and wall thicknesses are usually normal, but the relaxation or filling phase of the heart is very abnormal.

Doctor
15,128 Views · 2 years ago

H&E stain is a popular staining method in histology. Its a combination of two dyes: the basic dye (hematoxylin) and the alcohol-based dye (eosin). In an H&E stain you will usually see both eosinophilia and basophilia: the nuclei of cells basophilic (blue), while eosinophilia is typical of cytoplasmic constituents (pink). Xylene, alcohols, distilled water are also required.




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