Question

Select the correct option:
A. 8th, 9th, and 10th pairs of the ribs articulate directly with the sternum.
B. 11th and 12th pairs of ribs are connected to the sternum with the help of hyaline cartilage.
C. Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum.
D. There are seven pairs of vertebrosternal, three pairs of vertebrochondral, and two pairs of vertebral ribs

Answer 1

Hint: The ribs have curved, flat bones, the majority of which shape the thoracic frame. They are incredibly light, but highly resilient, referring to the function in the preservation of thoracic vital organs.

Complete answer: There seem to be twelve pairs of ribs, with vertebral column elucidating both of them. The sternum, at seven, has a straightforward articulation. As such, one of three separate forms may be assigned to ribs; true (vertebrosternal) ribs, false (vertebrochondral) ribs, and floating (vertebral, free) ribs. Ribs between one and seven are called true ribs and thus are connected via their own costal cartilage closely to the sternum. Vertebrosternal ribs would be those attaching the manubrium and sternum to the thoracic vertebrae. Ribs 2 to 6 or 7 will be included. From one end and at the other, vertebrochondral is bound to vertebrae with costal cartilage of other ribs; vertebrocostal, but just not vertebrosternal.
So, the correct option is (D)

Additional Information:
One component of the human respiratory system is indeed the human rib cage. The thoracic cavity, which comprises the lungs, is concealed. Whenever the muscular diaphragm stretches and flattens on the floor of the thoracic cavity, and inhalation is carried out, while the contraction of intercostal muscles lifts the rib cage up or out. The 8th, 9th, and 10th rib pairs do not articulate explicitly with the sternum but, with the aid of hyaline cartilage, join the seventh ribs. Vertebrochondral or false ribs are all these. The 11th and 12th ribs really aren't ventrally related and are thus called floating ribs.

Note: By expanding the chest cavity, ribs protect the chest, facilitating the lungs expansion and therefore facilitating breathing. They help shield the thorax's lungs, heart, and other major organs. The rib cage probably accounts for the thoracic wall along with all the skin and associated fascia and muscles and offers connections for the muscles of the spine, thorax, upper abdomen, and back.