BONTRAGER CH 10 BONY THORAX
QUESTIONS AND ANSWERS
The bony thorax is made up of three structures: the sternum, thoracic vertebrae,
and 12 pairs of ribs.
What is the word for the lengthy, central aspect of the sternum? ANSWER body
The most distal portion of the sternum does not ossify until a person is around
___ years of age (answer 40).
The average adult's entire sternum length is around - ANSWER 7 inches (18
cm).
The xiphoid process of the sternum is at the approximate level of ANSWER T9-
T10.
The sternal angle is at the level of - ANSWER T4-5.
What is another name for the sternal angle? - Answer: manubriosternal joint.
The sternoclavicular joint connects the upper limb to the bony thorax.
The term of the cartilage that links the anterior end of the rib to the sternum is
costicartilage.
, What distinguishes true ribs from fake ribs? ANSWER: True ribs link to the
sternum via their own costicartilage. The false ribs link to the sternum via the
seventh rib's costicartilage.
True/false: the eleventh and twelfth ribs are classified as fake and floating ribs.
True or False: the anterior end of the ribs is called the vertebral end. -
ANSWER false (known as sternal end)
Which feature of the ribs corresponds to the transverse process of the thoracic
vertebrae? ANSWER tubercle.
Three structures are located within the costal groove of each rib: artery, vein,
and nerve.
1st sternocostal - Answer: immovable-synarthrodial.
1st-12th costovertebral joints: moveable-diathrodial (plane or gliding).
1st-10th costochondral unions (between costicartilage and ribs) - Answer:
immovable-synarthrodial.
1st-10th costotransverse joints (between the ribs and transverse processes of T-
vertebrae) - ANSWER moveable.-diathrodial (plane or glider).
QUESTIONS AND ANSWERS
The bony thorax is made up of three structures: the sternum, thoracic vertebrae,
and 12 pairs of ribs.
What is the word for the lengthy, central aspect of the sternum? ANSWER body
The most distal portion of the sternum does not ossify until a person is around
___ years of age (answer 40).
The average adult's entire sternum length is around - ANSWER 7 inches (18
cm).
The xiphoid process of the sternum is at the approximate level of ANSWER T9-
T10.
The sternal angle is at the level of - ANSWER T4-5.
What is another name for the sternal angle? - Answer: manubriosternal joint.
The sternoclavicular joint connects the upper limb to the bony thorax.
The term of the cartilage that links the anterior end of the rib to the sternum is
costicartilage.
, What distinguishes true ribs from fake ribs? ANSWER: True ribs link to the
sternum via their own costicartilage. The false ribs link to the sternum via the
seventh rib's costicartilage.
True/false: the eleventh and twelfth ribs are classified as fake and floating ribs.
True or False: the anterior end of the ribs is called the vertebral end. -
ANSWER false (known as sternal end)
Which feature of the ribs corresponds to the transverse process of the thoracic
vertebrae? ANSWER tubercle.
Three structures are located within the costal groove of each rib: artery, vein,
and nerve.
1st sternocostal - Answer: immovable-synarthrodial.
1st-12th costovertebral joints: moveable-diathrodial (plane or gliding).
1st-10th costochondral unions (between costicartilage and ribs) - Answer:
immovable-synarthrodial.
1st-10th costotransverse joints (between the ribs and transverse processes of T-
vertebrae) - ANSWER moveable.-diathrodial (plane or glider).
