RIBS Flashcards
how pairs of ribs do we have
12
what does the thoracic skeleton comprises of
ribs sternum interconnected by ligaments,true
joints, and synchondroses
source of tension in the thorax
intercoastal muscles
other structures enclosed in the chest cavity
superior aperture and inferior aperture
the symmetry of the twelve pairs of ribs
bilateral
what are true ribs and where are they connected
the first seven ribs connected to the sternum
what are false ribs
last five rib pairs
where are the eighth, ninth, and tenth ribs joined to
the eighth, ninth, and tenth ribs are joined to the cartilage
of the rib directly above, contributing to the
structure of the costal margin
what are floating ribs?
the last two pairs of ribs usually terminate freely between the muscles of the lateral abdominal wall.
what is scoliosis
medical condition present as a right convex curve of the spinal column
what is the sternum
a slightly convex flattened bone with multiple indentation
list the bony parts of the adult sternum
The manubrium
* The body of the sternum
* The xiphoid process
most of the ribs are attached through
synchrodoses
where are joints found in the rib
2nd through 5th rib
segments of the ribs
Head
* Neck
* Costal tubercle
* Shaft (body), which includes the costal angle
what is the acromioclavicular joint
where the two bones of the shoulder girdle are connected
what is the angle between the scapula and coronal plane
30
what is the angle between the scapula and clavicle
60
what is the position of the two shoulder joints
angled slightly forward
what are the two bones of the shoulder girdle
scapula and clavicle
how is the clavicle formed
ossifies directly from connective tissue
how many joints of the shoulder do we have
5
list the five joints of the shoulder
Sternoclavicular joint
2. Acromioclavicular joint
3. Glenohumeral joint and two articulations
subacromial space
scapulothoracic joint
what is the subacromial space
space lined with bursae for gliding between acromion and rotator cuff.
what is the scapulothoracic joint
loose connective tissue between the subscapularis and serratus anterior muscles that allows gliding of the
scapula on the chest wall.
