Chapter 11: Characteristics used in naming skeletal muscles Flashcards
What 7 characteristics are used in naming skeletal muscles?
1) direction/orientation of muscle fasicles relative to body’s midline
2) size
3) shape
4) action
5) number of (tendons) of origin
6) location
7) origin and insertion
The _____ is parallel to the midline
rectus
the _____ is perpendicular to the midline
transverse
the ____ is diagonal to the midline
oblique
largest
maximus
longus
long
maximus
largest
latissimus
widest
magnus
large
major
larger
minor
smaller
minimus
smallest
brevis
short
longissimus
longest
vastus
huge
rectus
parallel to midline
transverse
perpendicular to midline
oblique
diagonal to midline
deltoid
triangular
trapezius
trapezoid
serratus
saw-toothed
rhomboid
diamond
orbicularis
circular
pectinate
comblike
piriformis
pear
platys
flat
quadratus
square, 4-sided
gracilis
slender
flexor
decreases joint angle
extensor
increases joint angle
abductor
moves bone away from midline
levator
raises/elevates body part
adductor
moves bone closer to midline
depressor
lowers/depresses body part
supinator
turns palm anteriorly
pronator
turns palm posteriorly
sphincter
decreases size of an opening
tensor
makes body part rigid
rotator
rotates bone around longitudinal axis
biceps
2 origins
triceps
3 origins
quadriceps
4 origins
The serratus anterior muscle has what muscle shape?
serratus; saw-tootehd
the orbicularis oculi muscle has what shape?
circular
the platysma muscle has what shape?
flat
the quadratus femoris muscle has what shape?
square
The flexor carpi radialis muscle performs what action?
decreases joint angle
The abductor pollicis longus muscle performs what sort of action?
moves bone away from midline
the adductor longus muscle performs which sort of action?
moves bone toward midline
The levator scapulae:
a) decreases a joint angle
b) moves bone closer to midline
c) decreases the size of an opening
d) raises or elevates a body part
e) rotates a bone along the longitudinal axis
d
The tensor fasciae latae muscle:
a) turns palm posteriorly
b) is a slender muscle
c) makes a body part rigid
d) raises or elevates a body part
e) is a triangular muscle
c
The pronator teres muscle performs what action?
it turns the palm posteriorly
The gluteus maximus muscle is the ____ muscle whereas the gluteus minimus muscle is the ___ muscle
largest
smallest
the adductor longus muscle is a ___ muscle whereas the adductor brevis muscle is a _____ muscle
long
short
the latissimus dorsi muscle is the ____ muscle, whereas the longissimus capitis muscle is the ____ muscle
widest
longest
the adductor magnus muscle is a ____ muscle
large
the pectoralis major muscle is ____ than the pectoralis minor musle
larger
the vastus lateralis muscle is:
a) longest
b) widest
c) huge
c) large
c