Bony Thorax
how many pairs of ribs actually articulate with the sternum?
1 Rib 1
joint between the anterior end of the rib and the lateral margin of the costalcartilage
1-10th costochondral joints
which ribs are true ribs? __-__
1-7
what three things make up the bony thorax?
12 pairs of ribs (24 ribs), thoracic spine, and the sternum
what position do we do to get the "AP" sternum
15 degree RAO
cartilaginous, synarthrodial joint between the 1st rib and the sternum
1st sternocostal joint
how long is the manubrium?
2 inches
which pairs of ribs attach to the body of the sternum?
2-7
which ribs have a sternocostal joint?
2-7
the sternal end of the rib sits about ___ - ___ inches inferior to the vertebral end
3-5
the body of the sternum consists of __ segments that fuse at what age?
4 at 25
the first ____ pairs of ribs directly articulate with the sternum
7
the sternum contains how many facets or depressions on the lateral margins?
7
the rib cage is at its widest dimension at the ___th and ____th ribs
8 and 9
which pairs of ribs attach to costocartilage of rib 7?
8-10
false ribs include ___ - ____
8-12
how many bones are in the axial skeleton?
80
what level is the sternal angle at?
T4/5
each rib pair will articulate with what two things?
TSP vertebra and then sternum
true or false: the anterior ends of the ribs do not attach to the sternum
True
what age does the xiphoid tip fully ossify?
age 40
how many ribs have a costal groove?
all 24
found near the axilla and is that part of the rib that curves forward and downward
angle
the manubrium articulates with the ____ to form which joint?
clavicles to form the SC joints
what are two other names for the body of the sternum?
corpus or gladiolus
part of the rib that contains an artery, a vein, and a nerve found on the inferior and inside margin of every rib
costal groove
the body of the sternum has facets for what?
costocartilage
what is the cartilage of the ribs that connect them to the sternum referred to as?
costocartilage
ribs 11 and 12 are referred to as ___ ribs
false floating ribs
ribs that have their own costocartilage but connect to the sternum by way of the 7th costocartilage
false ribs
what classification of bone is the sternum?
flat bone
this is on the vertebral end of the rib and articulates with the body of the TSP to form the costovertebral joint
head
joint at the union of all the costocartilage from ribs 7-10
interchondrial joint
upper portion of the sternum
manubrium
three divisions of the sternum
manubrium, body, and xiphoid process
just lateral to the head of the rib
neck
can you point out the costal groove on an image?
no
at what end of the rib can the tubercle be found? (two ways of saying it)
posterior or vertebral end
what can they take from the body of the sternum if they did a biopsy?
red bone marrow
part of the rib found between both ends
shaft or the body
palpable lanfmark at the union of the manubrium and the body
sternal angle
end of the rib that connects to cartilage and then the sternum
sternal end
two other names for the jugular notch
suprasternal notch or manubrial notch
the sternocostal joint of the first rib is classified as ____
synarthrodial
1-10th costochondral joint- classification
synovial
the SC joints are _____ with what type of movement?
synovial , planar/gliding
what type of joint with what type of movement are the 2-7 sternocostal joints?
synovial with planar/ gliding
interchondral joint- classification, type, movement
synovial, amphiarthrodial, planar/gliding
the costotransverse and costovertebral joints are what classification, type, and with what movement?
synovial, diarthrodial, and planar/gliding
what gland is posterior to the manubrium?
thymus gland
ribs that are directly attached to the sternum by their own costocartilage are referred to as ___ ribs
true
true or false: the xiphoid process consists of cartilage, not hard bone
true
arises from the neck of the rib to form the costotransverse joint
tubercle
posterior end of the ribs that is parallel with the floor
vertebral end
