Biology : Life Processes In Living Organisms

Q 10 / 16

UPSC CSE Prelims 2001

Match List-I with List-Il and select the correct answer using the codes given below

List-I (Bone) List-II (Name)
A. Breastbone 1. Clavicle
B. Collarbone 2. Patella
C. Kneecap 3. Scapula
D. Shoulder blade 4. Sternum

EXPLANATION

Correct Option: (D)

The correct matches are as follows:

  • A. Breastbone: The sternum is a flat bone located in the central part of the chest, forming the anterior portion of the rib cage. It is commonly known as the breastbone.
  • B. Collarbone: The clavicle is a long bone that extends horizontally between the sternum and the scapula. It is commonly referred to as the collarbone.
  • C. Kneecap: The patella is a sesamoid bone situated anterior to the knee joint, commonly known as the kneecap.
  • D. Shoulder blade: The scapula is a large, flat, triangular bone positioned on the posterior aspect of the shoulder. It is commonly known as the shoulder blade.

Thus, the correct sequence is A-4, B-1, C-2, D-3, which corresponds to code 4123.

Incorrect Options:

Options (1), (2), and (3) contain incorrect pairings for one or more of the bones listed. For instance, option (1) incorrectly matches C (Kneecap) with Scapula and D (Shoulder blade) with Patella. Options (2) and (3) incorrectly match A (Breastbone) with Clavicle and B (Collarbone) with Sternum. The anatomical names are distinct and not interchangeable as presented in these options.

SOURCENCERT Class 11 Biology Chapter 20: Locomotion and Movement