What are the differences in between male and female skeletons?

Quick web links in this post: skeleton | head | muscle | reproductive | ligaments | conclusion |

There room many biological sex differences, ideal down come the moving level. First, let’s compare the skeletons of males and also females.

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WOMEN space SHORTER, around 9% on average. Nigerians have the smallest recorded elevation difference in between the sexes at 4%, while guys of the UAE room 11% taller 보다 their women.

MALE BONES are BIGGER and STRONGER, in both size and also density. Height male bone fixed is around 50% an ext than women’s, and also women lose bone quicker as we age. Black civilization have significantly stronger bones than whites: black women’s top bone fixed is the very same as white men’s.

WOMEN and also MEN have THE SAME number of RIBS. We have 12 pairs, though some civilization are born with 11 or 13 pairs to no ill effect.

MEN have actually BIGGER HEADS and LONGER ARMS and also LEGS than women, loved one to body size. Resources differ on comparative body length yet they every agree women have actually smaller, lighter heads & necks. Did you understand a human being head weighs around 5kg?

The organic sex of an adult skeleton have the right to be identified with 95% accuracy by measure the hip bones alone, 83% accuracy by the skull, and also 80% accuracy by the lengthy bones (femur & tibia).

Male & female skeletons – sex-related dimorphism

WOMENS ELBOWS and also SHOULDERS are slightly different from men’s. Our arms bend a small further from our bodies and also are an ext mobile in ~ both joints.

FINGER LENGTH: greater exposure come androgens in utero leader to a fourth (ring) finger the is much longer than the second (index), as frequently seen in men.

WOMEN have actually A much longer TORSO. Our skeleton accommodates extra reproductive organs and finds space to press things the end of the means during pregnancy. It makes our legs shorter than men’s.

THE larger FEMALE PELVIS is much better adapted because that childbirth. It’s wider, longer, and also held together by ligaments the soften during pregnancy, enabling the 2 halves to slide apart because of their small pelvis. Women’s slanted thigh bones placed extra pressure on the knee joints, which need to rotate when men’s perform not.

Differences between Male and Female Heads

MEN have actually BIGGER BRAINS by much more than 10% relative to human body size. Women’s brains have more connections between the two hemispheres, utilizing both sides of the brain much an ext often 보다 men.

Men’s brains room bigger, but there’s no IQ advantage

WOMEN’S SKULLS space THICKER by 10% however men have tendency to have actually a bony ridge top top the brow line and a more heavier jaw. The masculine forehead is likely to steep backwards; women’s are much more vertical.

ESTROGEN CORRELATES with higher eyebrows, fuller lips, and a rounder jawline v a an ext pointed chin.

TESTOSTERONE CORRELATES through a square chin & high solution angled mandible, a much more prominent Adam’s Apple, an ext facial hair and also male-pattern baldness v age.

EYESIGHT:: Women’s colour perception and also peripheral vision are better than men’s. Guys do far better on lengthy distance focus. These may be evolution adaptations because that childcare and hunting, respectively.

HEARING Women have much far better high-frequency hearing; we’re an especially well adapted to identify a baby’s cry – this follow me to kittens and other young animals. However, we lose even much more low-frequency hearing v age.

VOICE: Men’s (usually) depths voices space the an outcome of growth in the vocal tract and vocal folds at puberty.

Is there A Difference between Male and Female Muscles?

women are about 30-35% muscle by weight, while guys are 40-50% muscle. This varies a lot by age, health, fitness, body kind and genetics. Any kind of averagely healthy and balanced person can build much more muscle by working out and, come an extent, adjust the composition of your muscles. Yet women can’t complement the mass or strength of men’s skeletal muscle – uneven they artificially raise their androgens through a significant amount, which would certainly be dangerous.

EAST GERMANY’S vicious programme of treating young athletes through steroids won countless medals, yet at tremendous human cost. Hormone doping scandals continue to shake the sporting world, in addition to confusion over natural variations in organic sex and transgender medications. The only clear lesson come be attracted from this is that Testosterone enhances muscle expansion & strength.

IT’S UNFASHIONABLE to say females can’t develop strength & muscles like men – yet it is demonstrably true, so i think it worth supplying a little evidence.


Hand grip is among the many widely-used markers because that strength. The the strongest 10% that females deserve to only win the bottom 10% that men! load for weight (lean human body mass only), women’s grip remains pretty feeble compared to the men. These were big samples that contained plenty that fit, young sportswomen with good upper human body strength. Acquisition the 60 elite females separately, they to be still only as good as an median to weak man.

DateEventSexAchievedNameCategoryHighest male Record below Women’s Maximum
Olympic records in weight Lifting – maximum Lifts
2012SnatchF151kgTatiana Kashirina75kg+
2012Clean & JerkF187kgZhou Lulu75kg+
2012TotalF333kgZhou Lulu75kg+
2016SnatchM216kgBehdad Salimi105kg+
2004Clean & JerkM263kgHossein Rezazadeh105kg+
2016TotalM473kgLasha Talakhadze105kg+
2000SnatchM138kgHalil MutluÓscar FigueroaKim Un-guk

In Olympic weightlifting, the biggest total weight achieved by a mrs was 333kg through Zhou Lulu in the most difficult women’s body weight category, 75kg+. She likewise won the Clean & Jerk v 187kg, when Tatiana Kashirina lifted 151kg in the snatch.

You need to go under to males under 62kg to find a champion Zhou Lulu could beat, and also under 56kg for a male champion Tatiana Kashirina might beat in the Snatch. Ladies of much less than 75kg couldn’t beat any of the masculine winners, not also the the smallest men.

INTENSIVE RESISTANCE TRAINING can elevate steroid secretion in both males & females but, as checked out above, we’re merely not developed for the muscular bulk and explosive toughness of those who were born v a Y chromosome – and the female limit is a long, long way behind the masculine maximum.

MEN HAVE enormous UPPER BODY stamin ADVANTAGE, however women execute (somewhat) far better with our lower-body muscles. Females usually have 40% less skeletal muscle than males on the peak half; 33% less listed below the waist. This data are often wrongly report – it means men have 66% more upper-body muscle than women, and also 50% more lower-body muscle.

MEN additionally HAVE reduced BODY strength ADVANTAGE. A 70kg elite masculine athlete can squat 35% much more weight 보다 a 70kg elite female; this goes up to 57% more when both athletes are 120kg.

MEN’S muscle ARE more SOLID, as result of a greater proportion of form 2 fast-twitch fibres. This type of muscle fibre has a lot of protein however not much blood. It have the right to expand/contract swiftly with good force and also generate its very own energy, however it color etc on the remainder of the body for oxygen. Because of this, form 2 muscle fibres obtain tired more quickly. Return it varies by body kind & genetics, men’s muscles are, proportionally, around 50% more form 2 than women’s.

Women have more form 1 (slow-twitch) fibres, and also use lock better

WOMEN’S kind 1 MUSCLE FIBRES protect HEALTH. Kind 1 (slow-twitch) fibres are an ext loosely packed and have their own capillaries. This way they deserve to keep going for a lengthy time. They interact with other metabolic processes, which helps to protect against insulin resistance and also heart disease, supports the immune system and promotes hormonal functions.

WOMEN ACTIVATE BOTH types OF FIBRE. Olympic athletes aside, both woman & male bodies use kind 1 fibres first, then shift to form 2 once those acquire fatigued – yet women have been discovered to switch between the 2 throughout exertion. This is the secret of our well known endurance: not the slow-twitch fibres themselves, yet neuromuscular activity which provides all the fibres.

WOMEN are 90% AS rapid AS MEN. Across all speed events, ladies consistently achieve 90% that the men’s speeds. This seems to be wherein our multi-tasking muscle fibres come good, but they quiet can’t close the 10% gap.

MUSCLES of THE REPRODUCTIVE SYSTEM. you don’t view much about them in the fitness blogs, carry out you?! These significant organs room lined with muscles so an effective that they deserve to squeeze a infant out, and also so elastic that they have the right to stretch come accommodate the baby & placenta, etc, when holding them for sure – and also then return to shape.

THE VAGINA is no a ‘hole’. It’s a muscular pipe connecting interior organs to the external world. Around the mucosal lining is a folded class of smooth muscle. One more layer wraps lengthways about that, so the vagina have the right to stretch & host in all directions.

THE UTERUS is a thick-walled muscular organ with no under than three layers the folded muscles going in various directions. Together, they’re called the myometrium.

MEN DON’T HAVE any kind of such awesome muscles in their reproductive organs. They feel strong contractions throughout orgasm, as women do, however theirs space localised bursts if our entirety uterus & vagina contract in tide – much more often and also for longer, if we’re lucky.


WOMEN’S space THINNER and also SOFTER 보다 men’s – personally from around our reproductive organs, where they deserve to be phenomenally solid and elastic. In ~ puberty ours ligaments end up being “lax” contrasted to men’s. This would seem to it is in a hormonal result designed come facilitate separation that the pelvic bones for childbirth – pity it weakens every one of the ligaments all of the time, as our “laxity” causes joint instability. It’s responsible for a high number of sporting injuries.

WOMEN ARE an ext FLEXIBLE, as result of that same laxity.

WOMEN’S BACKS need to SUPPORT THE weight OF BREASTS. This offered one bicycle designer a headache, and is the factor for women’s ubiquitous lower back pain.



Well, duh, that’s why we have biological sexes

NATURE DOESN’T CARE that works in ~ the office/factory, who can fight the hardest or how countless different work a person have the right to do. Nature doesn’t treatment if your back hurts. Nature doesn’t care if men obtain diabetes and have heart attacks, or if women’s bones rest in later on life. All nature cares about is propagating the types – the doesn’t also matter if most of the young die (look in ~ turtles!) As lengthy as a species has much more than sufficient young to change itself, and keeps those young lively long sufficient to blee themselves, it’s a job well excellent as far as nature cares.

Humans are very, really successful in this respect.

WOMEN space NOT WEAK. Like all various other mammals, we require a mrs sex and also a male sex since that’s how we save the species going. Females sacrifice some physical pressure in favour that reproductive fitness, due to the fact that it take away a hell that a most specialised strength & stamina come gestate, birth and also nurture young mammals. As it goes, females have developed compensatory tactics (some ~ above this page, an ext in later on posts!) This is a spectacular testimony to the all-round power & awesomeness of women … and of men. As soon as we occupational as a team, we’re unstoppable.

WOMEN room NOT THE WEAKER SEX, simply DIFFERENT. Blokes aren’t constructed to grow live humans out that their very own body tissues, recover almost immediately and also spend the following year feeding stated infant v their own bodily fluid. They’re male. Females are certainly weak once judged against male bone & muscle power – however you try evaluate males against the female performance. It is strange that we’ve characterized physical stamin & weakness in regards to what men’s bodies can do … however that’s patriarchy, ns guess!

Women know all around being ‘born in the not correct body’.

It is the biological sex of our bodies that is in ~ the source of the sexism women have actually to address throughout life. It is why we space at danger of sexual and physical violence native males. It is why women room expected to take on caring roles throughout life. It is why we are paid much less at work. The is why women’s sporting activities aren’t valued prefer men’s are. The is why we have to fight daily versus the sex stereotypes society imposes ~ above us.

It is additionally why ladies have dealt with hard for female-only spaces, female-only prisons, female-only opportunities and also female-only competitive sports. We are various to males and ignoring that distinction ignores the lived experience and needs of females. Equality of possibility is about treating anyone fairly, not the same.

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More and more males space now picking to ‘live in duty as women’. But they can’t actually BE FEMALE. It’s a clinical impossibility. There is not such point as a ‘sex change’. This is simple fact, no prejudice or transphobia. Biological sex affect every component of us, under to the moving level. Our organic sex informs our bodily structure & function, metabolic processes, and health outcomes. However you can be forgiven for reasoning women are similar to men through boobs and also an extra hole! The internet’s full of misinformed nonsense – and, worryingly, even medical science doesn’t know the half of it.