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Parallel
fasicles parallel to longitudinal axis of muscle - terminate at either end in flat tendons
Circular
fascicles in concentric rings from sphincter muscles that enclose an oriface
fusiform
fasicles nearly parallel to longitudinal axis of muscle - terminate in flat tendons - muscle is fat in middle and tapers toward tendons
triangular
fascicles spread over broad area converge at thick central tendon - gives muscle triangular appearance
Pennate
Unipennate
Bipennate
Multipennate
Pennate - short fasicles in relation to toal muscle length - tendon extends entire length of muscle
Unipennate - fasicles arranged on one side of tendon
Bipennate - fascicles on both sides of tendon
Multipennate - fascicles attach obliquely from many directions to several tensons
Rectus
Parallel to midline
Transverse
perpendicular to midline
Oblique
diagonal to midline
Maximus
largest
Minimus
smallest
Longus
long
brevis
short
latissimus
widest
longissimus
longest
magnus
Large
major
larger
minor
smaller
vastus
huge
deltoid
triangular
trapezius
trapezoid
serratus
sawtoothed
rhomboid
diamond-shaped
orbicularis
cricular
pectinate
comblike
piriformis
pear-shaped
platys
flat
quadratus
square, four sided
gracilis
slender
flexor
decreases joint angle
extensor
increases joint angle
abductor
moves a bone away from midline
adductor
moves bone toward midline
levator
raises or elevates a body part
depressor
lowers a body part
supinator
turns palm anteriorly
pronator
turns a palm posteriorly
sphincter
decreases the size of an opening
tensor
makes a body part rigid
rotator
rotates a bone around its longitudinal axis
biceps
two origins
triceps
three origins
quadriceps
four origins
Author
cswett
ID
43895
Card Set
Muscle Shapes
Description
Table 11.1
Updated
2010-10-21T03:16:03Z
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