Osteology of the Anterior Thorax Flashcards
What separates the manubrium sterni and corpus sterni?
the manubriosternal symphysis
What vertebral levels correspond to the position of the corpus sterni?
T5-T9
How many sternabrae for the corpus sterni?
4 sternabrae
What surface feature on the corpus sterni identifies the location of the synchondroses?
transverse lines
What articular sites for the costal cartilage of ribs will be identified on the corpus sterni?
costal notches II-VII
What feature of the corpus sternis is present in 4-7% of people?
a sternal foramen
What causes the appearance of a sternal foramen?
failure of the ossification centers of the sternum to fuse together normally
What attaches to the scalene tubercle of the first rib?
the anterior scalene muscle
Which groove on the body of the first rib is close to the vertebral end?
the groove for the subclavian artery and the first thoracic nerve
Which groove of the body of the first rib is close to the sternal end?
the groove for the subclavian vein
What specifically will attach to the crest of the neck of the second rib?
the superior costotransverse ligament from the transverse process of T1
What specifically attaches to the back of the neck of the second rib?
the inferior costotransverse ligamet from the transverse process of T2
WHat unique feature is present on the body of the second rib?
the tuberosity for the serratus anterior
Which ribs are classified as typical ribs, true ribs, costa verae, and vertebrosternal ribs in the typical adult skeleton?
ribs 3-7
Which ribs are classified as atypical ribs, true ribs, costa verae, and vertebrosternal ribs in the typical adult skeleton?
ribs 1 and 2
