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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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This animation won a Platinum Best of Show Aurora Award in 2016.
Homan’s sign test also called dorsiflexon sign test is a physical examination procedure that is used to test for Deep Vein Thrombosis (DVT). A positive Homan’s sign in the presence of other clinical signs may be a quick indicator of DVT. Clinical evaluation alone cannot be relied on for patient management, but when carefully performed, it remains useful in determining the need for additional testing (like D-dimer test, ultrasonography, multidetector helical computed axial tomography (CT), and pulmonary angiography) [1][2].
Given the success of drugs to treat erectile dysfunction, such as sildenafil (Viagra), tadalafil (Cialis) and vardenafil (Levitra), drug companies have sought a comparable drug for women. Viagra has even been tried as a treatment for sexual dysfunction in women. However, the Food and Drug Administration (FDA) hasn't approved this use of Viagra. Indeed, until recently there were no FDA-approved drugs for treating sexual arousal or sexual desire problems in women. Yet 4 in 10 women report having sexual concerns. A prescription medication known as flibanserin (Addyi) — originally developed as an antidepressant — has been approved by the FDA as a treatment for low sexual desire in premenopausal women. A daily pill, Addyi may boost sex drive in women with low sexual desire and who find the experience distressing. Potentially serious side effects include low blood pressure, dizziness and fainting, particularly if the drug is mixed with alcohol. Experts recommend that you stop taking the drug if you don't notice an improvement in your sex drive after eight weeks.
#dialysis #uvahealth
If your kidney function is declining and medications and other treatments aren’t working, dialysis can offer life-saving care. UVA has one of the largest dialysis programs in the country. Nephrologist Daphne Knicely, MD, explains the types of home dialysis and how they can work to fit your life.
Find out more at: https://uvahealth.com/services/dialysis
Transcript
Dialysis is just a way to replace the kidneys when they're not working anymore. So when the kidneys stop working, they stop getting rid of water, stop balancing the chemistry, stop getting rid of the toxins. Then dialysis does its job by balancing the chemistries, getting rid of the toxins, and help remove fluid. It doesn't fix the kidneys. It just replaces them.
I usually think of dialysis as two components. There's hemodialysis and peritoneal dialysis. So peritoneal dialysis can only be done at home. Hemodialysis can be done in a center, or it can be done at home.
Hemodialysis is where you have some sort of access to the blood. Either some sort of shunt in the arm that connects an artery and vein, or a catheter. And it allows for blood to leave you, go through a machine, get cleaned, chemistries balanced, and then comes back to you.
For home hemodialysis, the patient actually learns how to do that treatment. It's a very simple machine, very user-friendly. Training is usually about anywhere from four weeks up to eight weeks, and you work one-on-one with a nurse. You still see the physician. You come in about once a month, maybe twice a month, to get labs. You'll see a social worker, and a nutritionist at the same time.
Peritoneal dialysis takes place by putting a tube into your abdomen. And we take dialysis fluid that's chemically balanced. When we put it into the abdomen, it uses those little blood vessels to pull toxins out, to balance chemistries, kind of like little filters. Now, after it sits in there for several hours, we drain it out.
Anyone that needs dialysis is a candidate for home dialysis. There's not one type of dialysis that's going to make you live longer. They're all equal. The goal is to pick the type of dialysis that fits with your life.
Body Restorations will do an “Early Assessment” when you come in for physiotherapy; this allows therapists to identify the more complicated cases quickly and get started with treatment right away. If you are feeling pain now, it is best that you seek treatment as soon as possible. Research has proven that people who seek treatment for their pain immediately have less of a chance of it becoming an issue later own. Early intervention is always the best option. Visit - https://stalbertphysiotherapy.com/contact/
If you have an active lifestyle or are often on the go with work, travel or family, then peritoneal dialysis at home may be the right choice. Home peritoneal dialysis offers additional freedom and flexibility as a treatment option that’s closest to natural kidney function and may require fewer dietary restrictions and medications. To learn more about Home PD, visit https://www.FreseniusKidneyCar....e.com/ckd-treatment/
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A peritonsillar abscess forms in the tissues of the throat next to one of the tonsils. An abscess is a collection of pus that forms near an area of infected skin or other soft tissue. The abscess can cause pain, swelling, and, if severe, blockage of the throat. If the throat is blocked, swallowing, speaking, and even breathing become difficult. When an infection of the tonsils (known as tonsillitis) spreads and causes infection in the soft tissues, a peritonsillar abscess may result. Peritonsillar abscesses are generally uncommon. When they do occur they are more likely among young adults, adolescents, and older children.
We are looking for 5 patients with knee pain who want to get significantly better in the next 30 days. Click this link to let me know you're interested and learn more.
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One of the most common knee injuries in contact and collision sports is a medial collateral ligament (MCL) injury. This is a ligament on the medial (side closest to the midline) side of your knee that provides stability against side-to-side stress to the knee. You might injure it by cutting maneuvers in sports like soccer or hockey. You can also suffer an MCL injury if another player hits you on the outside of your knee.
Please note: I don't respond to questions and requests for specific medical advice left in the comments to my videos. I receive too many to keep up (several hundred per week), and legally I can't offer specific medical advice to people who aren't my patients (see below). If you want to ask a question about a specific injury you have, leave it in the comments below, and I might answer it in an upcoming Ask Dr. Geier video. If you need more detailed information on your injury, go to my Resources page: https://www.drdavidgeier.com/resources/
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Unlike tears of the ACL, MCL injuries most often heal without surgery. You might need to wear a hinged knee brace for 2-6 weeks. The length of time you miss from sports or exercise varies depending on the location and severity of the injury.
In this video, I share my thoughts on the nature of an MCL injury, the diagnosis, the treatment options and return to sports.
Please remember, while I appreciate your questions, I cannot and will not offer specific medical advice by email, online, on my show, or in the comments at the end of these posts. My responses are meant to provide general medical information and education. Please consult your physician or health care provider for your specific medical concerns.
Femoral Embolectomy. Back. All emboli of the lower extremity, including a proximal saddle embolus at the aortic bifurcation, can be removed through the common femoral artery using Fogarty catheters. By passing these through the embolus, and by inflating the small balloon, the clot can be withdrawn and the flow restored
When placement of a urethral catheter is contraindicated or unsuccessful, percutaneous suprapubic urinary bladder catheterization is a commonly performed procedure to relieve urinary retention. [1, 2] This topic describes the Catheter over needle technique. The Seldinger technique is described in the Clinical Procedures topic Suprapubic Aspiration.
The Spirotome belongs to the Direct & Frontal type of biopsy systems for taking large core biopsy from virtually every soft tissue in the body. The FDA has approved 13 applications. This video shows how easy it is to take a large core from a thoracic wall tumor mass. The size and quality of the sample allows quantitative molecular biology.