Thoracic Cage and Others System Flashcards
is a typical flat bone, is a result of the fusion of three
bones—the manubrium, body and xiphoid process.
Sternum
is the upper segment which in early life is separated
from the body by cartilage but later it fuses with the body.
Manubrium
is that part that extend from the
manubrium to the Xiphoid process.
Body of the sternum or gladiolus
is the lower pointed end below the
body at the level of T10.
Xiphoid or insiform process
is the concave upper border of the manubrium at
the level of T3.
Supra sternal or jugular notch
are depressions found at each lateral border of the supra-
sternal notch.
Clavicular notch
Clavicular notch and the medial end of the clavicle form the
Sterno-clavicular joint
are depressions on each lateral margin of the sternum which
articulate with the costal cartilages.
Costal notches
is the prominent transverse ridge at the junction of the
manubrium and the body of the sternum at the level of T4-T5.
Sternal angle or angle of Lewis
are flat curved bones
that form part of the
posterior wall, the entire lateral wall and part of the anterior wall of the thorax.
Ribs
is the slightly expanded posterior end which articulate with the pits on
the adjacent border of the vertebra.
Head
is the slightly constricted part lateral to the head.
Neck
is a small prominence lateral to the neck. It forms a
joint with the anterior surface of the adjacent transverse process
of a vertebra.
Tubercle
are two pits on the head of the rib that
articulate with a facet on a single vertebral body.
Articular facet
is a long flat, curved part that passes from the neck
around the chest wall.
Shaft
part that articulate with the costal
cartilage.
Anterior or sternal end
are 12 pairs of cartilaginous flat plates on the anterior
chest wall.
Costal cartilages
is an extra rib present on one or both sides
above the normal first rib.
Cervical rib
is a short extra
rib present below the 12th rib, arising from
the first lumbar body.
Lumbar rib
one or more ribs maybe absent on one or both sides.
Absence of a rib
an anomaly wherein the anterior end of the adjacent rib are one.
Fused rib
an anomaly wherein the
sternum maybe depressed and thus decreases the
antero-posterior diameter of the chest.
Pectus excavatum
anomaly
wherein there is protrusion of the sternum.
Pecrtus cariatum / pigeon’s chest
is a hollow, bent
cylinder with bony walls located at the lower end of the vertebral column and is
consist of 3 parts:
Pelvis/Hip Bone/Os Coxae/Os Innominatum/ Innominate Bone
is a cup-shaped cavity or socket
on the outer surface of the Innominate bone at
the junction of its three parts that
accommodate the femoral head and forming the
hip joint.
Acetabulum
is a large opening in the
lower part of the Innominate bone where its margins are formed by the rami of
the ischium and of the pubis. Is the largest foramen in the human skeletal
system.
Obturator foramen
ILIUM, ISCHIUM & PUBIS.
Three fused bone
forms the upper 2/5 of the acetabulum and all the
Innominate bone above this socket.
Ilium
is the thickened part, close to and above the acetabulum
Body of the ilium
is a thin, upper, flat curved part above the body.
Ala or wings
is the upper curved border of
the wing at approximate level of L4. This can be felt
through its entire length through the lateral wall of the
abdomen.
Crest of ilium ir iliac crest
is the prominent anterior end of the iliac
crest and can readily be palpated through the skin.
Anterior superior iliac spine (ASIS)
lies on the front or anterior border about 1 inch
below the ASIS.
Anterior inferior iliac spine
is the
thickened part immediately
below and behind the acetabulum.
Body of ischium