Given below is the structure of the forelimb of humans. Read the information below the diagram and fill in the blanks:

Limbs are a part of the appendicular skeleton system. Humans have one pair of forelimbs which are used for many purposes like - holding, writing, eating and grasping, etc. Each arm consists of a total of thirty bones.

The upper arm consists of a single long bone, called (a) …………… . Two long bones are found in the lower arm, (b) …………… found on the side of the thumb and (c) …………… . Forelimbs have eight (d) …………… in the wrist and five (e) …………… in the palm. Remaining fourteen bones are found in the fingers as phalanges.

Assertion (A): Radius and ulna are the two long bones of the lower arm.

Reason (R): Tibia and fibula are the two long bones of the shank.

1. A is True and R is False.
2. A is False and R is True.
3. Both A and R are True.
4. Both A and R are False.

Ischium and Pubis are two specific bones of the girdles in the human body, belonging to (P) …………… and (Q) …………… girdles respectively.

1. P — Pectoral, Q — Pelvic
2. P — Pectoral, Q — Pectoral
3. P — Pelvic, Q — Pelvic
4. P — Pelvic, Q — Pectoral