How to approach histology for Human Anatomy students. Using a key will help get you through it! Add some penguin fairy dust will help too!

Please note: I mis-spoke and said "striated" instead of "stratified epithelium" a couple of times... apologies!

There are lots of histology keys out there, but the one I showed in the video is here: http://www.penguinprof.com/upl....oads/8/4/3/1/8431323

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Details:

Tissue in the human body:

Epithelial: Is made of cells arranged in a continuous sheet with one or more layers, has apical & basal surfaces.

A basement membrane is the attachment between the basal surface of the cell & the underlying connective tissue.

Two types of epithelial tissues: (1) Covering & lining epithelia and (2) Glandular Epithelium.

The number of cell layers & the shape of the cells in the top layer can classify epithelium.

Simple Epithelium - one cell layer
Stratified epithelium - two or more cell layers
Pseudostratified Columnar Epithelium - When cells of an epithelial tissue are all anchored to the basement Membrane but not all cells reach the apical surface.
Glandular Epithelium -- (1) Endocrine: Release hormones directly into the blood stream and (2) Exocrine - Secrete into ducts.


Connective: contains many different cell types including: fibroblasts, macrophages, mast cells, and adipocytes. Connective Tissue Matrix is made of two materials: ground substance - proteins and polysaccharides, fiber -- reticular, collagen and elastic.

Classification of Connective Tissue:
Loose Connective - fibers & many cell types in gelatinous matrix, found in skin, & surrounding blood vessels, nerves, and organs.
Dense Connective - Bundles of parallel collagen fibers& fibroblasts, found in tendons& ligaments.
Cartilage - Cartilage is made of collagen & elastin fibers embedded in a matrix glycoprotein & cells called chondrocytes, which was found in small spaces.
Cartilage has three subtypes:
Hyaline cartilage -- Weakest, most abundant type, Found at end of long bones, & structures like the ear and nose,
Elastic cartilage- maintains shape, branching elastic fibers distinguish it from hyaline and
Fibrous Cartilage - Strongest type, has dense collagen & little matrix, found in pelvis, skull & vertebral discs.


Muscle: is divided into 3 categories, skeletal, cardiac and smooth.
Skeletal Muscle -- voluntary, striated, striations perpendicular to the muscle fibers and it is mainly found attached to bones.
Cardiac Muscle -- involuntary, striated, branched and has intercalated discs
Smooth Muscle -- involuntary, nonstriated, spindle shaped and is found in blood vessels & the GI tract.


Nervous: Consists of only two cell types in the central nervous system (CNS) & peripheral nervous system (PNS):
Neurons - Cells that convert stimuli into electrical impulses to the brain, and Neuroglia -- supportive cells.
Neurons -- are made up of cell body, axon and dendrites. There are 3 types of neurons:
Motor Neuron -- carry impulses from CNS to muscles and glands,
Interneuron - interpret input from sensory neurons and end responses to motor neurons
Sensory Neuron -- receive information from environment and transmit to CNS.
Neuroglia -- is made up of astrocytes, oligodendrocytes, ependymal cells and microglia in the CNS, and schwann cells and satellite cells in the PNS.

Wedge Resection of a gastric GIST

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Fremale to male gender reassignment surgery

The spleen plays multiple supporting roles in the body. It acts as a filter for blood as part of the immune system. Old red blood cells are recycled in the spleen, and platelets and white blood cells are stored there. The spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis

With ECT, electrodes are placed on the patient's scalp and a finely controlled electric current is applied while the patient is under general anesthesia. The current causes a brief seizure in the brain. ECT is one of the fastest ways to relieve symptoms in severely depressed or suicidal patients.

Thanks to a new, state-of-the-art procedure for total knee replacement developed by surgeons at the Detroit Medical Center's Sinai-Grace Hospital, the rehabilitation time for patients has been reduced from six months to six weeks. ~ Detroit Medical Center

In this video, we have explained the procedure of total #knee #replacement #surgery in patient in 3D animation.
Learn more: https://ecgkid.com
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Knee replacement, commonly known as complete knee replacement or knee arthroplasty, is a surgical treatment that resurfaces a knee that has been destroyed by arthritis. The extremities of the bones that make up the knee joint, as well as the kneecap, are capped with metal and plastic pieces. Someone with severe arthritis or a major knee injury may benefit from this procedure.

The knee joint can be affected by a variety of arthritis forms. The degradation of joint cartilage and neighboring bone in the knees can be caused by osteoarthritis, a degenerative joint disease that primarily affects middle-aged and older persons. Rheumatoid arthritis produces pain and stiffness by inflaming the synovial membrane and resulting in an excess of synovial fluid. Traumatic arthritis, or arthritis caused by an injury, can harm the joints.
The purpose of knee replacement surgery is to resurface damaged areas of the knee joint and cure knee discomfort that has not responded to prior therapies.

High definition video showing laparoscopic appendectomy operation

Cleft palate is among the most common birth defects affecting children in North America. The incomplete formation of the roof of the mouth can occur individually, or in addition to cleft lip. Cleft palate repair is a type of plastic surgery to correct this abnormal development both to restore function and a more normal appearance. This video explains what to expect for families scheduled for cleft palate surgery at the Craniofacial Anomalies Program at University of Michigan C.S. Mott Children's Hospital.

Learn more about our program at http://www.mottchildren.org/craniofacial

Arterial Blood Gas Sampling

Canker sores (Aphthous ulcer) are small, painful ulcers on the inside of the mouth, tongue, lips, or throat.Canker sores are white or yellow and surrounded by a bright red area. They are not cancerous.

Vaginal Hysterectomy Procedure of a 42 years old female patient with a 3 months history of symptomatic vaginal bulge

Removal of Infected Hernia Mesh

Lewy body dementia, also known as dementia with Lewy bodies, is the second most common type of progressive dementia after Alzheimer's disease dementia. Protein deposits, called Lewy bodies, develop in nerve cells in the brain regions involved in thinking, memory and movement (motor control). Lewy body dementia causes a progressive decline in mental abilities. People with Lewy body dementia may experience visual hallucinations, and changes in alertness and attention. Other effects include Parkinson's disease-like symptoms such as rigid muscles, slow movement and tremors.

how do you know if I have a clogged duct or mastitis? You'll always have a clogged duct before you have mastitis and sometimes mastitis can be prevented if you jump on it fast enough. A clogged duct may be red, it can be a tender lump on one side or the other, just feel a little bit painful in one area when you nurse, and the best thing to do is apply warm compresses especially before nursing, massage the area from your armpit down towards the nipple, and then nurse your baby. The goal is to unclog that duct, get your baby to fully empty the breast, and hopefully it will prevent an infection. An infection or mastitis develops if the clogged duct isn't unclogged and bacteria start to harbor and grow and then you have an infection. Symptoms can be the same as a clogged duct as far as how the breasts feel. You might notice a red tender area or a lump. In addition to that you usually do have a fever or flu-like symptoms or just have generalized malaise, and fatigue, and aches. If you feel this way, call your doctor as soon as possible because it requires treatment. An antibiotic is the treatment as well as drinking lots of fluids and nursing your baby as frequently as possible. The milk that comes from the clogged duct is not harmful for your baby but sometimes it tastes a little extra salty and babies refuse it. If that's the case be sure to pump so that you're emptying your breast frequently. The more frequently you empty your breast the quicker you'll get over the infection. Also, of course, taking the antibiotics your doctor has prescribed and be sure to finish the entire course. If you have any other questions for me in the future feel free to ask them on our Facebook page at Facebook.com/IntermountainMoms and recommend us to your friends and family too.

Tension pneumothorax develops when a lung or chest wall injury is such that it allows air into the pleural space but not out of it (a one-way valve). As a result, air accumulates and compresses the lung, eventually shifting the mediastinum, compressing the contralateral lung, and increasing intrathoracic pressure enough to decrease venous return to the heart, causing shock. These effects can develop rapidly, particularly in patients undergoing positive pressure ventilation.

A Lecture Presented by Dr. Mostafa Yakoot to Vascular Surgery Congress. TITLE: SAFETY & EFFICACY OF A NEW HONEY OINTMENT (PEDYPHAR) FOR DIABETIC FOOT ULCERS. Based on the original article in JWC by: Yakoot M, Abdelatif M, Etman M.