spinal erectors and abdominal muscles

Muscle Assignment #2 
due:
Friday, Feb. 12, for 301-001 and 
Thursday, Feb. 11, for 301-002

quadratus lumborum,
vol. 5: pp. 60-61
make sure you build both triangles of this muscle.

external obliques,
vol. 5: pp. 78-79
pay extra attention to the digitations along the rib cage. each point should land on a rib.

rectus abdominis,
vol. 5: pp. 72-73
indicate navel and tendinous inscriptions.











Muscle Assignment #1 (due Monday, Feb 7 [301-001] and Tuesday, Feb. 8 [301-002])
 

spinal erectors

spinalis
-cervicis, vol. 1: pp. 94-95
note the space here between the spinous processes and the transverse processes--the muscle is on the spinous processes, far back on the dorsal surface

-capitis, vol. 1: pp. 96-97
note this muscle's relation to the nuchal ligament and remember that ligament on your maniken is already there (the plastic behind the cervical vertebrae on your manikens)

-thoracis, vol. 1: pp. 98-100
same as the cervicis--look at the space between this muscle and the surface of the rib cage. keep the muscle away from the surface of the rib cage.


longissimus
look at how all these sections twist together, like three pieces of a rope

-capitis, vol. 1: pp. 106-107

-cervicis, vol. 1: pp. 108-109

-thoracis, vol.1: pp. 110-111
look here at how rounded out the thoracis is from side to side, also how there is space behind it, how it doesn't glue itself to the rib cage. also make sure to build the lumbodorsal fascia.


iliocostalis
this muscle is similar to longissimus in how its pieces twist
-cervicis, vol. 1: pp. 116-117
this segment appears to come out quite far. this appears this way because it is wrapping next to the longissimus, not really sticking out in space.

-thoracis, vol. 1: pp. 118-119

-lumborum, vol. 5: pp. 62-63
remember this is in book number five. it will also connect to the lumbodorsal fascia.

clay assignment #2: abdominals

abdominals
(due Tuesday, October 12)

quadratus lumborum,
vol. 5: pp. 60-61
make sure you build both triangles of this muscle

external obliques,
vol. 5: pp. 78-79

rectus abdominis,
vol. 5: pp. 72-73
indicate navel and tendinous inscriptions

Rib Cage and Abdominals

 

image: Michelangelo Buonarotti (1475- 1564)

Male Nude with Proportions Indicated

red chalk, 11 1/2" x 7 1/8" (289 x 180 mm)

The Royal Collection © 2010, Her Majesty Queen Elizabeth II RL 12765

Click HERE for a chapter on the rib cage and abdominal muscles from Anatomy Lessons from the Great Masters by Robert Beverly Hale.

spinal erectors, abdominals

here is a link (click here) to an earlier blog post on the spinal erectors and abdominal muscles. you should have your spinal erectors well under way and revised by now. we will begin abdominal muscles tomorrow and thursday.

the society of figurative arts

this is a beautiful and helpful website with tons of examples of structural drawing, line work, and anatomy








here are examples of the torso, rib cage, and pelvis (note the muscles included in the drawings like we've been working on in class):

assignment for tuesday, october 7 (part two)

this assignment is for the 301-002 (11:15 - 2:20) class

post images of
1) one 10-minute pose from thursday, oct. 2 and
2) the 50-minute pose from thursday, oct. 2.

with the 10-minute pose, include the three points you noticed that were different between your drawing and my 10-minute drawing. (i'll post this here as soon as i get to a camera--you can copy it to your blog if you'd wish)

also, for the 10-minute drawing and the 50-minute drawing, write a minimum of 200 words for each drawing addressing the following issues/questions:

structure
can you see long axis lines and cross contour lines in the drawing? do they function to show the length and direction of each of the main forms of the figure? if you have outlines in the drawing, are the outlines somewhat open and varied in value and character? or too similar in value, weight? are there outlines in the drawing that create a flat, coloring-book feel?

anatomy
can you see an egg-like form indicating the rib cage? are there cross-contour lines indicating pelvic landmarks? does the drawing have anatomical landmarks we've studied so far? (for the 10-minute pose write about skeletal landmarks, for the 50-minute pose also include muscles--spinal erectors, external obliques, and rectus abs).

line
is there line variation in the drawing? variation of value? character? thickness/thinness? for the 50-minute pose write about how line functions to create atmospheric perspective.

composition
for each drawing describe the relationship between the drawing of the figure and ground. how does the figure fit within the picture plane? is there enough space around the figure to make it feel like it's not too crowded? is the whole figure (10-minute pose) or whole torso (50-minute pose) included? is the figure cropped? if so, how and why? what is the scale of the figure in relation to the picture plane? is it a tiny figure in the middle of a large page? does the drawing of the figure take full advantage of the space of the page?

muscle assignment

1. spinal erectors

spinalis
-cervicis, vol. 1: pp. 94-95
note the space here between the spinous processes and the transverse processes--the muscle is on the spinous processes, far back on the dorsal surface

-capitis, vol. 1: pp. 96-97
note this muscle's relation to the nuchal ligament and remember that ligament on your maniken is already there (the plastic behind the cervical vertebrae on your manikens)

-thoracis, vol. 1: pp. 98-100
same as the cervicis--look at the space between this muscle and the surface of the rib cage. keep the muscle away from the surface of the rib cage.






longissimus
look at how all these sections twist together, like three pieces of a rope

-capitis, vol. 1: pp. 106-107

-cervicis, vol. 1: pp. 108-109

-thoracis, vol.1: pp. 110-111
look here at how rounded out the thoracis is from side to side, also how there is space behind it, how it doesn't glue itself to the rib cage. also make sure to build the lumbodorsal fascia.


iliocostalis
this muscle is similar to longissimus in how its pieces twist

-cervicis, vol. 1: pp. 116-117
this segment appears to come out quite far. this appears this way because it is wrapping next to the longissimus, not really sticking out in space.

-thoracis, vol. 1: pp. 118-119

-lumborum, vol. 5: pp. 62-63
remember this is in book number five. it will also connect to the lumbodorsal fascia.




2. abdominals

quadratus lumborum,
vol. 5: pp. 60-61
make sure you build both triangles of this muscle

external obliques,
vol. 5: pp. 78-79

rectus abdominis,
vol. 5: pp. 72-73
indicate navel and tendinous inscriptions