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HWN Suggests

Looking Ahead: It Would Be Much Better If We Had 3 Arms

Did you ever wonder why humans have not developed a third arm? I have. We’re a unique species. In a very short amount of time we have evolved into who we are today, and it could have continued on, but it didn’t. It just sort of stopped. It’s an issue.

How often have you thought, while carrying groceries into your house, fumbling with a half-eaten muffin, two small children and your house keys, how wonderful it would be to have a third arm? I have. There are lots of things we could do if we had a third arm. We could drive and text at the same time. We could give really good hugs. I have often wondered, while getting a professional massage, what it would be like if the masseuse had…

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 The Ultimate Guide to Human Arm Reference: Anatomy, Function, and Common Injuries

In this comprehensive article, we will explore the anatomy, function, and common injuries of the human arm. Whether you're a healthcare professional, an athlete, or simply curious about the human body, this guide will provide you with valuable insights and practical tips to keep your arm healthy and prevent injuries.

Articles of Interest

'My Bionic Arm Is Sexy as Hell'

The bionic arm, Troisi says, changed her life. "I just think it's the sexiest thing ever," she said. "It's really made me rethink prosthetics as not just something that says, 'I'm disabled. I need help.' It's 'I'm disabled, and this is available to me. And it's sexy and it's cool and it's fun and it helps me do things.'"

Anatomy - Human Arm

Human arm study I did in the weekends. Hope you all like it . Cheers

Bionic arms empower kids to express themselves

From pitching a fastball to painting a masterpiece, the human arm is amazing in terms of all the things it can do. But I had a new appreciation for what an incredible feat of engineering—and art—the arm is when I visited a non-profit dedicated to designing bionic limbs for children with disabilities.

Degrees of Freedom of the Human Arm

Have you ever think how many degrees of freedom the human arm has (excluding palm and fingers)?

DOF of the Human Arm

Always remember: Grubler's formula is just an expression of the concept that the number of degrees of freedom of a mechanism is equal to the number of degrees of freedom of the rigid bodies minus the number of independent constraints on the motion of those bodies.

Give praise to the elbow: A bending, twisting marvel

The elbow is an underappreciated joint that brings many daily tasks within your reach.

How Much Is Your Arm Worth? Depends On Where You Work

Each state determines its own workers’ compensation benefits, which means workers in neighboring states can end up with dramatically different compensation for identical injuries.

How the Human Body Evolved to Throw Fastballs

Our shoulder flexibility allows us to hurl things at high speeds compared to other primates—a trait we likely evolved for hunting two million years ago.

How to Grow a Human Arm in a Lab

Tissue engineering researcher Nina Tandon looks at the future of biology and the moral questions new technology encourages.

How Toned Are Your Arms? (And How Many Push Ups Can You Do?)

My arms (like so many women I know) are the weakest part of my body. It's like they're made of mushy noodles, and if I stop doing strength exercises for even two weeks, I see significantly more jiggle.

Human augmentation with robotic body parts is at hand, say scientists

Extra parts, from a thumb to an arm, could be designed to help boost our capabilities.

Humans Keep Growing an Extra Artery in Their Arms, And This Is Why

Picturing how our species might appear in the far future often invites wild speculation over stand-out features such as height, brain size, and skin complexion. Yet subtle shifts in our anatomy today demonstrate how unpredictable evolution can be.

I Would Replace My Right Arm With a Robotic One

Right now, as I write, my arm hurts. I just want to take it off. It's nothing out of the ordinary, just some tendonitis and tennis elbow, due to overuse. But had I been a car, I hope my owner would have changed that faulty part a long time ago.

Mind-controlled prosthetic arm enables patients to feel the objects they grip

The implant system, called e-OPRA, was created by Integrum AB, a Swedish company that was the first to provide bone-anchored prostheses. Called osseointegration, this method anchors the prosthesis to the skeleton in the portion of the arm that remains after amputation, which allows for greater freedom of movement that feels more natural.

New evidence that Lucy, our most famous ancestor, had superstrong arms

In Ethiopia, she is known as “Dinkinesh” — Amharic for “you are marvelous.” It's an apt name for one of the most complete ancient hominid skeletons ever found, an assemblage of fossilized bones that has given scientists unprecedented insight into the history of humanity. You probably know her as Lucy.

The human brain can control a robotic arm

Robotics are typically portrayed as complex mechanical systems that function according to a fixed code. Yet, that is quickly changing; certain robotic parts are now able to update their code in real time. By incorporating engineering and neuroscience research, scientists and physicians have found a way to make robotic pieces function “naturally” like any limb on the human body.

The Industrial Robotic Arm -- An Engineering Marvel

The manufacturing world is full of newly automated robots that are helping increase speeds across the globe. One of the most important tools on the production line is the robot arm. The industrial robot arm is able to increase throughput while also removing workers from dangerous environments.

There’s No Stopping a Determined Human— The Inspiring Story of Hamissi Lugonda

If a man can chop firewood without arms…it’s hard to come up with excuses why we can’t do anything we set our minds to.

These Bones of Mine

In this post we shall focus on the main bones located in the arm. They are the Humerus, Radius & Ulna.

Why Do We Extend Our Arms While Trying To Stay Balanced?

The reason we extend our arms while trying to stay balanced is because it increases our moment of inertia, which makes us more resistant to any rotational movement and helps us maintain our balance.

Why do we get shots in the arm? It’s all about the muscle

It’s worth noting that most, but not all, vaccines are given in the muscle – this is known as an intramuscular injection. Some vaccines, like the rotavirus vaccine, are given orally. Others are given just beneath the skin, or subcutaneously – think of the measles, mumps and rubella vaccine. However, many others are given in the muscle. But why is the muscle so important, and does location matter? And why the arm muscle – called the deltoid – in the top of the shoulder?

Why human societies still use arms, feet, and other body parts to measure things

If you had to estimate the dimensions of a room without the benefit of a tape measure, you might walk its perimeter heel to toe, counting your steps. To estimate the height of a wall, you might count hand spans from floor to ceiling. In doing so, you’d join a long human tradition. Most human societies around the word—perhaps all—have employed similar body-based measurement strategies,

Why You Aren't Able to Lift As Much on Your Left Side (and How to Fix It)

Wondering why you're not able to lift as much with your left hand (or maybe your right)? With the correct workouts, you can conquer those muscle imbalances.

Resources

StatPearls

The terminal branches of the brachial plexus include the axillary, musculocutaneous, radial, ulnar, and median nerves. Each is responsible for specific motor and sensory innervation of the upper extremity.