The given figure shows the structure of pectoral girdle and upper arm. Identify the structure marked as "X" and its feature.

Question

The given figure shows the structure of pectoral girdle and upper arm. Identify the structure marked as "X" and its feature. (A) Humerus: Longest bone of upper extremity and is characterized by presence of deltoid tuberosity for the attachment of muscles. (B) Radius: It is a smaller bone and formed by sesamoid bone. (C) Ulna: The bone extending from the elbow to the wrist on the side opposite to the thumb in humans. (D) Femur: Longest and largest bone of body.

Tardigrade Admin · Accepted Answer

The structure marked as X is humerus. Humerus is the longest bone of upper extremity and is characterized by presence of deltoid tuberosity for the attachment of muscles.

Q. The given figure shows the structure of pectoral girdle and upper arm. Identify the structure marked as " $X$ " and its feature.

Humerus: Longest bone of upper extremity and is characterized by presence of deltoid tuberosity for the attachment of muscles.

Radius: It is a smaller bone and formed by sesamoid bone.

Ulna: The bone extending from the elbow to the wrist on the side opposite to the thumb in humans.

Femur: Longest and largest bone of body.

The structure marked as $X$ is humerus. Humerus is the longest bone of upper extremity and is characterized by presence of deltoid tuberosity for the attachment of muscles.

Q. The given figure shows the structure of pectoral girdle and upper arm. Identify the structure marked as "X" and its feature.