Can a human flex any of their muscles so hard that they would injure themselves or tear the muscle?

It is very unlikely but not for the reasons that have been put forth so far.Plenty of YouTube videos show that muscles can excerpt enough force to injure/tear but the force requirements for such are very high. Without some sort of external resistance

Can anyone become flexible?

Do you mean ‘flexible' in:our joints and body orour minds and thinking and behavior?In either case, we can become more flexible, but our flexibility is limited by our genes and our environment.In the first hatha yoga class I taught, there was a guy who

Does a person with more bulky muscles have their muscles more enlarged when flexed compared to a person with smaller muscles?

That is a very clever question but a clever answer is not necessarily warranted.I can attempt to answer it from Powerlifting and Olympic Weightlifting perspective.Suppose all these individuals are within the same measurements.The bulky muscle dude ( person) is the Bodybuilder guy. He builds show muscle to pose, while enlarging his muscle mass.The Powerlifting and Olympic Weightlifting trainers lack

How dense are six-pack abs?

Exercises is great way to get six pack abs. For people who want to get six pack abs in short time, you can try Imodstyle 6 Pack Abs (please search on google) . My boyfriend try it and his abs showed clearly within 24 days.Whether you are aiming to accomplish your exercise objectives or only wish to appear

How many parts are there in the human body?

It is hard to answer because I don't know what exactly are you asking for. There are over 206 bones in our body, but they are compoded from 300 different pieces. Every piece has many parts. It has sides, angels,

Why am I so flexible?

It could be a range of reasons such as genetics e.g. your build and the different length of different parts of your body relative to one another, how you respond to stress, lifestyle, age etc. I don't think anyone really knows nor can they predict

Why are my muscles so sore if I have not been physically active?

Becauseyou have not been physically active. Your bones need stress exerted on them to grow, and so do your muscles. A muscle's fibers need to tear for it to rebuild itself larger and stronger. So as you may already know from experience, if you don't use your muscles, you

How are insects' muscles different from muscles in humans and other vertebrates?

There are a number of ways that insect muscle differs from vertebrate muscle. I'll only mention a few ways relating to striated, skeletal, muscle. First,many insects have asynchronous indirect flight muscle to flap the wings. These do not actually connect to the wings but rather to the thorax. Also each contraction is not

How does fat distribute in one's body? Do different fats locate in different parts of the body? Does stress have any effect on this?

Fat accumulation is... lemme double check real quick. Yup, entirely genetic based. All you can do is reduce the amount of fat you accumulate. Your diet and exercise regimen will largely dictate that. Fewer calories in, more calories used. Not too much,

How does the human body lose fat by working out (exercising)? Where does the fat go?

!!! YOU EXHALE YOUR FAT !!!Yeah you heard it right, mass is breathed out as carbon dioxide means it goes into thin air. And these are not my words these are words of Ruben Meerman (former Australian physicist).Excess carbs and proteins are converted into chemical compounds called triglycerides (which

How many parts are there in the human body?

It is hard to answer because I don't know what exactly are you asking for. There are over 206 bones in our body, but they are compoded from 300 different pieces. Every piece has many parts. It has sides, angels, canals, holes, bumps and more. And then there is the inside part of the bone. So

If facultative bipedalism exists, is it possible that facultative quadrupedalism would exist? What is the difference between them?

Facultative bipedalism refers to the ability of a normally quadruped animal to use two legs for movement if required.Facultative quadrupedalism refers to the ability of a normally biped animal to use four legs if required.Yes, it is possible for facultative quadrupedalism to exist and it infact does.Bipeds are seen in only two classes of Vertebrata

What is the difference between anatomy and physiology?

Anatomy and physiology are like two sides of a sheet of paper: they describe the study of different things, but are so closely related that they're offered together most of the time. Simply put, anatomy is the study of the structure of body parts, whereas physiology is the study of the functions and relationships

What is the groove under the nose called?

The groove under the nose huh? Hmm... are you referring to the Philtrum?The philtrum is a narrow groove that may carry dissolved odorants from the rhinarium or nose pad to the vomeronasal organ via ducts inside the mouth. For humans and most primates, the philtrum survives only as a vestigial medial depression between the nose and upper lip.

Why do males like the female body so much?

Since the question is tagged under "Human biology" I will try to deal with this scientifically and psychologically (I am no expert - these are my personal thoughts). Disclaimer : following content may seem adult to some so reader discretion is advised.The female body has a better anatomy :

Why do muscles shake when they're fatigued?

Exercise-related muscle shakiness can happen to anyone, no matter your fitness level, age or gender. It can be caused by a variety of factors and poor choices. Because it can sometimes signal a more serious underlying condition, it is important to understand why shaking muscles can occur during exercise

You are a personal trainer. You work with all body types daily. What are your observations about various body types and how to achieve fitness with each body type?

The idea of somatypes, as proposed by Sheldon, has been soundly debunked. However the names stick around. Maybe because it is easier to talk about someone being endomorphic, mesomorphic, or ectomorphic rather than fat, skinny or average. Beyond that what guides the plans I create for clients are the clients goals, then their

Can a human flex any of their muscles so hard that they would injure themselves or tear the muscle?

It is very unlikely but not for the reasons that have been put forth so far.Plenty of YouTube videos show that muscles can excerpt enough force to injure/tear but the force requirements for such are very high. Without some sort of external resistance

Can anyone become flexible?

Do you mean ‘flexible' in:our joints and body orour minds and thinking and behavior?In either case, we can become more flexible, but our flexibility is limited by our genes and our environment.In the first hatha yoga class I taught, there was a guy who wondered why he couldn't do padmasana, the lotus pose. We puzzled

Does a person with more bulky muscles have their muscles more enlarged when flexed compared to a person with smaller muscles?

That is a very clever question but a clever answer is not necessarily warranted.I can attempt to answer it from Powerlifting and Olympic Weightlifting perspective.Suppose all these individuals are within the same measurements.The bulky muscle dude ( person) is the Bodybuilder guy. He builds show muscle to pose, while enlarging his muscle mass.The Powerlifting

Have people's face shapes changed over the last century?

YESThere used to be a very much greater variety.Look at pictures in a 1920 National Geographic.No modern Native American looks like Geronimo, no White President looks like Abraham Lincoln and no Oklahoma farmer looks like photos from the Dust Bowl. We are not lean and gaunt we are round and fat.In 1920 you could tell by looking

How do small intestine and large intestine differ?

The small intestine and large intestine together form a continuous long tube that stretches from the stomach to the anus. Their purpose is to process and absorb nutrients and water from the food that we eat. The small intestine is about 20 feet long and 1 inch in diameter. Because its diameter is smaller, it is called

What is the difference between tendons, ligaments and joints?

Tendons :- they are fibrous connective tissue joint muscles to bones .Ligaments :- they are also fibrous connective tissue but joint bones to other bones .Tendons :- they are made up of white collagen fibres .Ligaments :- they are made up of yellow elastin fibres.Tendon :- responsible

What is the purpose of tendons and ligaments?

Have you ever seen one of those medical skeletons hanging in a classroom, haunted house or doctors office? The string which holds all the bones together, they are like the ligaments, holding each bone together.The tendons are connected to the bone which are then connected to a muscle. When you

What muscles are involved in knee flexion and extension?

Knee Extension:Prime Mover: Quadriceps - vastus lateralis, vastus medialis, vastus intermedius, rectus femorisSynergists: There are no true synergists of knee extension. However, the gluteus maximus and soleus could be viewed as synergists to knee extension during closed chain mechanics.Antagonists: Biceps Femoris, semimembranosus, semitendinosus, popliteus, gastrocnemius, gracilis, sartoriusNeutralizers: Careful balance between medial and lateral stabilizers of the knee must

Why am I so flexible?

Most likely you have hypermobility syndrome. This can be caused by one of several genetic conditions. One of the commonest types is Ehlers–Danlos syndrome, but there are several others.Some people with hypermobility syndrome are at risk of complications, including arthritis and cardiovascular problems.I recommend you visit your doctor for

Why are we born to die?

Life is limited but this does not negate its potential for value or meaning. In fact, the very limit to life is what enables us to give our lives value and meaning.If no one every died, there would also be no particular value to one's life or individual moments in it. After all, you're going to live

Why does stretching feel good?

STRETCH!I want to describe the overall cause of stretching. Our body produces lactic acid to help us in case we cannot get enough oxygen but we need extra amounts of energy to power our muscles. Since this acid forms and supports the muscle to receive oxygen, it causes muscle fatigue and soreness. Stretching after a workout helps

How would the human body look if we were walking in all fours? musculature/ sceletal / general)

Well lets firstly define the criteria that the answer has to follow. My criteria is that evolution does not play a role here and humans just suddenly started walking on all fours. Next I would say that humans walk on their knuckles of their hands and not with their palms touching the ground.Okay so