/ic/ - Artwork/Critique

[Anonymous No.2092872]

explain me the back muscle of this pic
please

[Anonymous No.2092888]

>>2092872

glutes.

that is all.

inbe inevitable

>backmusslez
>glutes
>mfw

if you see more than glutes in that picture you probably are homo

[Anonymous No.2092903]

[Anonymous No.2092926]

>>2092872

[Anonymous No.2092938]

>>2092872
i was going to do a diagram too but i'm not very technically minded so me describing anatomy is like "those bits that pull the shoulder back which go under those bony bits, there's three places where they kinda connect. then there's some muscles under there that help to control breathing, etc. etc."

so my diagram was about as helpful as just looking at her back without the contours and arrows.lol

[Anonymous No.2092947]

Can someone explain the booty?

[Anonymous No.2092951]

>>2092947

[Anonymous No.2092952]

>>2092947

[Anonymous No.2093089]

>>2092872
scapula really does this?

[Anonymous No.2093101]

>>2093089
you haven't seen nothing yet

[Anonymous No.2093112]

>>2093101
ain't seen nothin' yet*
git it right

[Anonymous No.2093116]

>>2093112
git fucked

[Anonymous No.2093117]

>>2092903
>>2092926
teres major is so tricky
>>2093089

[Anonymous No.2093123]

>>2092872
>back muscle?
Are you messing with me op? I have been looking at it for a while and can only see a nice booty

[Anonymous No.2093162]

whats all these plebs itt, getting horny over a simple picture
i thought people here draw like 100 of sexy naked ladies a day as warm up.

[Anonymous No.2093168]

>>2093089
who is this erector selector?

[Anonymous No.2093175]

>>2093162
>whats all these plebs itt, getting horny over a simple picture

This is because they do not draw at all or they do not draw in a manner where they are deconstructing what they see in the figure and rebuild it to the point you forget it is a person but rather a machine.

[Anonymous No.2093206]

>>2093175
>you forget it is a person but rather a machine
medics are like that too, even worse

[Anonymous No.2093207]

op here
please i want to understand that shadow of the trapezius
with the teres major,
break all logic
thanks

[Anonymous No.2093210]

>>2093206
Well you have to change your mentality when confronting something as complex as the figure; if you simplify it and take away the complexity with a series of steps you will have overcome any fear that you will not succeed in bringing forth an illusion of forms and shape on a flat surface while giving it grace and life.

[Anonymous No.2093213]

>>2093207
No, it's sticking out so you get AO.

[Anonymous No.2093218]

>>2093207
There's so many lines and stuff there I'm not even sure what you are asking...but I think you want to know the shadow on the righthand side that is shown in the topright image of hte four you posted? It's the bottom corner of the scapula that's sticking out a bit from the rib cage, and the serratus muscles coming off it. Then the slight shadow above to the left of that spot is from the rhomboids showing through the traps. Honestly the bottom left image of the one you posted shows it pretty well.

[Anonymous No.2093232]

>>2093218
so the shadow is the serratus muscle ¿right?
this back muscle are really tricky for me

[Anonymous No.2093245]

niggers tongue my anus

[Anonymous No.2093248]

>>2093232
They're tricky because the muscles are very thin so you need to know how they layer and overlap. There is also a lot of variation in superficial appearance based on the individual (how developed the muscles are, how much fat there is) and also how the muscles are beign engaged. In this example the scapula are being pulled towards the spine slightly, so the rhomboids engage and "pop" a bit, and the trapezius is very thin so you can't really see it that much.

Anyways, the shadow there is mostly caused by the actual bone of the scapula being slightly raised off the ribcage. As the shadow descends it is caused by the serratus mussles which attach underneath the scapula on the medial edge and then wrap underneath along the ribcage. The lats are very thin so you can see the serratus through them.

Hopefully this explains it sorta? The diagram I drew may not be 100% accurate since I drew it from memory rather than consult a book (shape of the scapula is slightly off probably and I can't recall how far up the medial edge of the scapula the serratus attach), but it should sorta show what's going on in that area. I suggest buying a good anatomy book and learning the bones and muscles one by one and understanding both their function and their origins and insertions.

Also sorry for the crappiness of this, the drivers on my tablet stopped working and so writing and drawing become very difficult.

[Anonymous No.2093274]

>>2093248
but here are different

[Anonymous No.2093277]

>>2093248
op here
thanks :) i aprreciatte your explain

[Anonymous No.2093280]

>>2093274
Yeah, if you read the first paragraph you would see that I mentioned there is lots of variation depending on factors such as the action being done and the individual's muscle and fat levels. This example you just posted is an extreme example since the person has very developed musculature (possibly on steroids) and very low body fat, and he is also performing a pullup which is engaging certain muscles that weren't engaged in the other image.

All that being said, in this new example the superficial forms are indeed very different. The trapezius and lats are developed enough that the muscles beneath them aren't visible. Also the teres muscles, infraspinatus, and traps are so developed that the scapula presents itself very differently--for example the spine of the scapula is an indentation rather than a prominence.

[Anonymous No.2093287]

>>2093207
that shadow is a cast shadow from the scapula popping out, due to and depending on the position of the arm.

do this posture where one of your arm is used to support the body and try to feel the scapula with your other, you can see it's pop out.

[Anonymous No.2093299]

>>2093089
blue is the spine of the scapula, right? but what is red?

[Anonymous No.2093302]

>>2093299
Red is the medial edge of the scapula (though drawn on slightly incorrectly for the angle). As you raise your arms your scapulas will rotate.

[Anonymous No.2093314]

>>2093302
I forget all the terms for the movements, but there are quite a lot of ways that the scapula can move. It's basically a freefloating bone with only a single anchor point (acromioclavicular joint). So it can be raised or lowered vertically, rotate clockwise/anticlockwise, lift off the the ribcage or press against, or slide around the ribs either towards the spine or around to towards the side of the ribs. It also can do several of those movements at once. And the amount it can rotate also is affected by the position of the humerus since when the arm is raised the bone will push up and lift the scapula rotating it further than if the arm were at rest.

Imo, when dealing with the back, you should identify the position of the scapulas as soon as you can, since they will dictate what the muscles and surface forms will be.

[Anonymous No.2093341]

>>2093168
underrated post.

[Anonymous No.2093355]

>>2093287
That's a winged scapula and not typical in the least

[Anonymous No.2093375]

>>2093314
thanks. it seems upper back is the one thing i'll never be able to do without reference

>>2093168
some teen dancer/model /tv/ is obsessed with. and who wouldn't really? (you can't see the erector. do you?)

[Anonymous No.2093621]

>>2093375
>it seems upper back is the one thing i'll never be able to do without reference
Honestly it's not so bad. Once you know the anatomy really well you should be able to identify everything you see in ref. At this point you can do various studies and figure out how the backs of different bodytypes tend to look at various positions and stuff. I find life drawing is really helpful for this area since the forms are more clear than in a photo and you can also see how the forms change as they move.

[Anonymous No.2094429]

>>2093168
barely out of puberty by the looks of it