Subscribe to the Nucleus Biology channel to see new animations on biology and other science topics, plus short quizzes to ace your next exam: https://bit.ly/3lH1CzV

For Employees of Hospitals, Schools, Universities and Libraries: Download 8 FREE medical animations from Nucleus by signing up for a free trial: http://nmal.nucleusmedicalmedi....a.com/free-trial-mem

This animation by Nucleus shows you the function of plant and animal cells for middle school and high school biology, including organelles like the nucleus, nucleolus, DNA (chromosomes), ribosomes, mitochondria, etc. Also included are ATP molecules, cytoskeleton, cytoplasm, microtubules, proteins, chloroplasts, chlorophyll, cell walls, cell membrane, cilia, flagellae, etc.

0:07 What is a cell?




0:35 What are the 2 categories of cells?

1:22 What is an Organelle? DNA, Chromatin, Chromosomes

2:06 Organelles: Ribosomes, Endoplasmic Reticulum

2:59 Organelles: ER function, Vesicles, Golgi Body (Apparatus)

3:50 Organelles: Vacuole, Lysosome, Mitochondrion

4:45 Organelles: Cytoskeleton

5:04 Plant Cell Chloroplast, Cell Wall

5:43 Unique Cell Structures: Cilia

Watch another version of this video, narrated by biology teacher Joanne Jezequel here: https://youtu.be/cbiyKH9uPUw


#cell #nucleus #biology

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Watch other Nucleus Biology videos:
- Controlled Experiments: https://youtu.be/D3ZB2RTylR4
- Independent vs. Dependent Variables: https://youtu.be/nqj0rJEf3Ew
- Active Transport: https://youtu.be/ufCiGz75DAk

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Learn more about the company that created this video: http://www.nucleusmedicalmedia.com/
https://www.instagram.com/nucleusmedicalmedia

This animation won a Platinum Best of Show Aurora Award in 2016.

Knee Examination - Orthopaedic Knee OSCE - Medicine Explained - Clinical Skills - Dr Gill

——-
* error clarification

Varus or valgus deformity depends on the joint you are looking at

Valgus deformity is where the bone DISTAL to a joint is angled outward, ie way from the body's midline

Thus a VARUS deformity of the knee is colloquially “bow-legged”
——-



This Knee Exam Deep Dive looks at the details of the examination of a patient with knee issues, highlighting what is being checked for during special tests and examination findings

In this video, we demonstrate how to perform a clinical examination of the knee for your medical school Clinical Skills OSCE. As orthopaedic exams are core skills when it comes to examining patients, students should assume that a knee assessment is a high yield station for any clinical exams or clinical assessments.

For a passing grade in your Clinical Skills OSCE, in a knee exam follow the approach of:
- Look
- Feel
- Move

HOWEVER, a knee examination OSCE station does not just involve pressing around the joint, as this video also demonstrates some of the specialised examination techniques required in examining patients such as the anterior draw test, checking for sag sign, along with discussion about McMurray's test

Reduction in movement, pain and general concerns about knee issues is a common reason for patients to see a doctor, and in general, practice is probably one of the hardest joints to accurately diagnose a problem in

This video has two other knee demonstration videos associated with it:

https://youtu.be/oyKH4EYfJDM - Knee assessment Demo

https://youtu.be/5qJaf7gW-B0 - Gait, Arms, Legs, Spine - GALS screen

------------

Please note that there is no ABSOLUTE way to perform a clinical examination. Different institutions and even clinicians will have differing degrees of variations - the aim is the effectively identify medically relevant signs.

However during OSCE assessments. Different medical schools, nursing colleges and other health professional courses will have their own preferred approach to a clinical assessment - you should concentrate on THEIR marks schemes for your assessments.

The examination demonstrated here is derived from Macleods Clinical Examination - a recognised standard textbook for clinical skills.

Some people viewing this medical examination video may experience an ASMR effect

#clinicalskills #Knee #DrGill

Shoulder Clinical Examination - Medical School Clinical Skills - Dr Gill

Personally, I find the shoulder examination the most complex examination possibly as there are so many variations and special tests. Some of which overlap and some will relate specifically to a patients presentation.

Often in a medical school syllabus, only select special tests will be used. In this shoulder exam demonstration, we include the Hawkins-Kennedy Test looking for impingement. This is dovetailed with examination for bicipital tendonitis as this is another possible cause of impingement type symptoms.

This shoulder upper limb exam follows the standard "Look, Feel, Move" orthopaedic exam approach, and overall order as set out in MacLeods Clinical Examination

Watch further orthopaedic examinations for your OSCE revision:

The Spine Examination:
https://youtu.be/pJxMHa6SCgU

Knee Examination
https://youtu.be/oyKH4EYfJDM

Hip Joint Clinical Examination
https://youtu.be/JC9GKq5nSdQ
________

Please note that there is no ABSOLUTE way to perform a clinical examination. Different institutions and even clinicians will have differing degrees of variations - the aim is the effectively identify medically relevant signs.

However during OSCE assessments. Different medical schools, nursing colleges, and other health professional courses will have their own preferred approach to a clinical assessment - you should concentrate on THEIR marks schemes for your assessments.

The examination demonstrated here is derived from Macleods Clinical Examination - a recognized standard textbook for clinical skills.


#ShoulderExamination #ClinicalSkills #DrGill

Do you think you have a hernia?
What are hernias?
The hernias we address in this http://DoctorsExpressHartsdale.com Medical Minute are inguinal, or groin, hernias. More common in men than women, an inguinal hernia can occur when part of the small intestine protrudes through a weakness or tear in the area between your abdomen and your thigh- or your groin. It's possible for anyone to get an inguinal hernia, but it is more commonly found in males.

Hernias form a bulge and can be accompanied by pain. Men have an approximate 26% lifetime risk of having hernia at some point in their life, where as women have a much lower chance of one- only about 3% of women will experience a hernia at some point in their life. There are other types of hernias, such as abdominal, or "hiatal" hernias but groin hernias outnumber abdominal hernias by about 3 to 1.

What causes a hernia?
The cause of a hernia is not always known, but hernias are often the result of weak spots in the abdominal wall. Weaknesses can be due to congenital defects (present at birth) or formed later in life. Some risk factors for inguinal hernia include:
• fluid or pressure in the abdomen
• heavy lifting
• straining during urination or bowel movements
• obesity
• chronic cough
• pregnancy

Hernias often form in people with weakened abdominal muscles or in those who do a lot of heavy lifting or straining, which is why we see it quite often in young men. Physiology plays a part: men have testicles and scrotum which descend through the inguinal canal-much larger in men than in women. That is part of the reason men tend to be more susceptible to hernias than women.

Symptoms of hernia

Symptoms of inguinal hernia usually include a bulge in the groin area and pain, pressure, or aching at the bulge—especially when lifting, bending, or coughing. These symptoms usually subside during rest periods. Men may also experience swelling around the testicles.


Screening and Diagnosis of Hernias
If you are having abdominal pain or pelvic bulge and pain, you want to see physician, and he or she will do an exam. They will use their finger, to see if you have a bulge in your scrotum or on your groin and they'll see if its reducible or not. If the exam doesn't give them the answer, they can then perform an ultrasound, an inexpensive test that can tell you the same day whether a hernia is present.


What to do if you think you have a hernia
Most of the time hernias do not cause problems. People often live with hernias their entire life without them becoming aggravated or painful. When they do cause pain though, there is concern that complications may have arisen. Most common hernias are what we call reducible; you can take your finger or you can lie down in bed and due to the effects of gravity, the bulge in the groin will actually disappear, which means the intestinal contents actually go back into the abdominal cavity or to the correct location. If it's not reducible by lying down or using a finger or having a physician trying to reduce it, then there are concerns about complications such as strangulation, or incarceration occurring. If those concerns are there, then you need to see a surgeon, and there may be a need for surgery.

How to Treat a Hernia
As stated earlier, hernias can often be watched for years without being treated. If however, they are causing pain, we generally refer you to a surgeon who can do a very simple laparoscopic surgery.

If you suspect a hernia, but have not been diagnosed, you should see your doctor, and of course, we are happy to see you here at Doctors Express

Learn how the experienced providers at MMP - Orthopedics & Sports Medicine, and the MMC Joint Replacement Center create better outcomes for patients through pre-surgery physical therapy.

Chapters
0:00 Introduction
0:35 Ankle Pumps
1:38 Quad Setting
2:21 Heel Slides
3:04 Hip Abduction
3:49 Short Arc Quad
5:34 Seated Heel Slide
6:13 Seated Straight Leg Raise

Aftercare is equally important as a surgery. In this video, Dr Gopinath talks about the recovery process of the total knee replacement surgery.

Know more about Knee Replacement
https://www.apollospectra.com/....speciality/orthopaed

Dr Nalli R Gopinath is an orthopaedic surgeon specialised in spine surgery and hip and knee replacement working at Apollo Spectra hospitals.

Know more about our Doctor:
https://www.apollospectra.com/....doctors/chennai/mrc-

Lattrell Wells was a perfect candidate for the MACI procedure. Dr. Michael O'Malley is a sports medicine surgeon at Carilion Clinic, "It’s a two stage procedure. So what we do is we actually harvest a small portion of the patient's cartilage and bone cells and we send it to a lab where the lab then that grows additional cartilage cells. It comes back to us in a little sheet and six weeks after that initial surgery, we re-implant the cartilage in a second surgery where we implant that sheet depending on the size of lesion right where his defect. This the only option where there’s virtually no risk of any kind of graft rejection or anything of that nature.

Cholecystectomy means removal of the gallbladder. The most common reasons
your doctor might recommend a cholecystectomy are biliary colic, cholecystitis,
choledocolithiasis, or gallstone pancreatitis. Biliary colic, also known as symptomatic
cholelithiasis, is caused by gallstones, which are hardened deposits of bile. Gallstones are
common in the general population, and gallstones alone are not a reason for gallbladder
removal if they do not cause symptoms. However, sometimes gallstones can get caught at the
neck of the gallbladder, causing pain when the gallbladder contracts against them trying to
release its bile, especially after a fatty meal. With biliary colic, the pain typically resolves within
an hour or so. Occasionally, a stone or some other blockage may prevent the gallbladder from
emptying over a long period of time, causing an increase in pressure and trapped fluid within the
gallbladder. This can cause inflammation and infection of the gallbladder, which we call
cholecystitis. Choledocholithiasis is when there are one or more stones in the bile ducts, which
can cause back up of bile into the liver, and depending on the location of the stones, could
cause pancreatitis, which is inflammation of the pancreas. Other reasons for gallbladder
removal, though less common, are gallbladder polyps and cancer. All of these are reasons for
gallbladder removal.

For more information, visit https://ukhealthcare.uky.edu/doctors.

Following Dr. Eric Skarsgard on his grueling 19-hour day at BC Children's Hospital, we meet several of his patients -- some of who need surgery that day, and some who have chronic conditions and need regular check-ups with him -- and learn how he works with medical students and on research projects as time allows.

"I’m essentially taking care of the baby right now to give them 60 or 70 or 80 years of life so I have to perform my best every time. Every single time. That is a commitment that I have to the parents."

The highest standard. That’s what cardiothoracic surgeon Sergio Carrillo demands of himself every time he steps into the OR. Dr. Carrillo and his Heart Center team at Nationwide Children’s Hospital treat patients with congenital heart disease with the simplest to the most complex procedures.

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Heart & Chest Surgery, What to Expect: http://bit.ly/2LVQr5J
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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

Want more?
Subscribe: http://www.youtube.com/user/ThePenguinProf
FB Page: https://www.facebook.com/ThePenguinProf
Twitter: https://twitter.com/penguinprof
Web: http://www.penguinprof.com/


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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.

This week! The histology of the nervous system!

☠️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
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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.

💻 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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When a ventral hernia occurs, it usually arises in the abdominal wall where a previous surgical incision was made. In this area the abdominal muscles have weakened; this results in a bulge or a tear. In the same way that an inner tube pushes through a damaged tire, the inner lining of the abdomen pushes through the weakened area of the abdominal wall to form a balloon-like sac. This can allow a loop of intestines or other abdominal contents to push into the sac. If the abdominal contents get stuck within the sac, they can become trapped or “incarcerated.” This could lead to potentially serious problems that might require emergency surgery.

This video shows how to insert a chest tube

How to apply and safely remove a plaster cast

the technique of insertion of a tube into the pericardial sac to remove fluid or blood, improving cardiac function