6.
Number of Origins:
Some
muscles have multiple origins. As a result, the number
of origins is often used in the muscle's name. Some common
names: the biceps brachii and triceps brachii.
The term bi is of Latin origin and refers to "two"
while ceps, also of Latin origin, refers to "head."
Thus this muscle has two heads that attach to two different
origins. How many heads and origins would thetriceps
brachii have?
7.
Relation of the Muscle to the Bone:
Not
only is a muscle sometimes named because of the bone to
which it attaches, but the name may be even more detailed
to describe where its position is in relation to the bone
or body part. Below are given some Latin terms and prefixes
that describe position.
supra
(L: above or over)
infra (L: below or beneath)
sub (L: below or under)
lateralis (L: the side)
medialis (L: the middle)
inter (L: between or among)
external (L: outer)
internal (L: inner)
superior (L: above or over)
inferior (L: underneath)
dorsi (L: the back)
anterior (L: in front of)
Examples
of muscles that contain some of the above terms include:
supraspinatus, infraspinatus, subscapularis,
vastus lateralis, vastus medialis, intercostals,
external and internal obliques, superior
and inferior rectus muscles of the eye.