Where is your clavicle in your body
ANATOMY OF THE CLAVICLE (COLLARBONE)
the two clavicles also called your
collar bones
are long bones found between your
sternum and scapulae
they are found just above the first rib
and help hold the scapula in place
this lets the arm hang freely away from
the thorax and have a larger range of
movement
the clavicle and scapula together make
up the shoulder girdle
also called the pectoral girdle the
clavicle forms the anterior portion of
the shoulder girdle
which serves to connect the arms to each
side the shoulder girdle also transmits
physical impacts from the upper limb to
the axial skeleton
which includes bones of the head and
trunk at its medial end
the clavicle articulates with the
manubrium of the sternum at the
sternoclavicular joint
at its lateral end the clavicle
articulates with the acromion of the
scapula at the acromioclavicular joint
the two ends of the clavicle are easily
distinguished the medial end is rounded
or prismatic
and the lateral end is flattened the
inferior
surface of the lateral end is rough and
has a ridge called the trapezoid line
also called the oblique or trapezoid
ridge which attaches to the trapezoid
ligament
medial to the trapezoid ridge is a
slight rounded projection called the
conoid tubercle
also called the coracoid tuberosity
which is over top the coracoid process
of the scapula
note that the coracoclavicular ligament
which connects the clavicle to the
coracoid process
is made up of two fasciculi the
trapezoid ligament
and the conoid ligament the clavicle can
be divided into three parts
the medial or sternal end the shaft and
the lateral or acromial end
the medial end articulates with the
clavicular notch of the manubrium of the
sternum
forming the sternoclavicular joint the
shaft can be divided into the medial
two-thirds
which is thicker and a lateral one-third
the lateral third has two borders and
two surfaces
the borders are the concave thin rough
anterior border
and the convex rough thicker posterior
border
the surfaces are upper and lower
