Animal Kingdom Question 500
Assertion : Both true ribs and floating ribs are present in mammals. Reason : By nature, sternal ribs are true ribs as they possess all the characters of ribs.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
All the sternal parts of the thoracic ribs except the last five are attached to the sternum below by hyaline cartilage.
Therefore, they are called true ribs.
Actually, the last two pairs of ribs (11th and 12th) are provided with sternal parts and they are not connected with the sternum, and hence, known as floating ribs.
Rib cage protects the kidney.
BETA
