Osteology of the Anterior Thorax Flashcards
What separates the manubrium sterni and corpus sterni?
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 causes the appearance of the sternal foramen?
failure of the ossification centers of the sternum to fuse together normally
What attaches to the scalene tubercle of the first rib?
anterior scalene muscle
Which groove on the body (corpus or shaft) of the first rib is close to the vertebral end?
groove for the subclavian artery and first thoracic nerve
Which groove on the body (corpus or shaft) of the first rib is close to the sternal end?
groove for the subclavian vein
What specifically will attach to the crest of the neck of the second rib?
superior costotransverse ligament from the transverse process of T1
What specifically attaches to the back of the neck of the second rib?
inferior costotransverse ligament from the transverse process of T2
What unique feature is present on the body (corpus or shaft) of the second rib?
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 & 2
Which ribs are classified as typical ribs, false ribs, costa spuriae, and vertebrochondral ribs in the typical adult skeleton?
ribs 8 & 9
