Question

A shallow depression in the scapula which receives the head of the upper arm bone is known as the
A. Acetabulum
B. Neural arch
C. Glenoid cavity
D. Olecranon fossa

Answer 1

Hint: The human body consists of an internal framework called the human skeleton. The human skeleton has various functions, including providing support to the body and its organs, providing a framework to the body, protecting the internal organs (rib cage protects the heart and lungs), movement, storage of minerals, production of blood cells, and endocrine regulations.

Step by step answer:The human skeleton is complex and hence is classified into axial skeleton and appendicular skeleton. The vertebral column, the skull. The rib cage and other associated bones from the axial skeleton. The pelvic and shoulder girdles, and the upper and lower limb bones from the appendicular skeleton. The scapula is the shoulder bone in the human skeleton. It is also called the shoulder blade or blade bone. The scapula connects the humerus to the clavicle
-Acetabulum: The concave surface of the pelvis is called the acetabulum. The hip joint is formed at this concave surface as the femur head attaches to the pelvic at the acetabulum. The glenoid fossa is the counterpart of the acetabulum. The articular cartilage is a slippery layer of tissue that lines that acetabulum. The synovial fluid is present here to reduce friction.
-Neutral Arch: The body of a vertebra includes a large anterior middle portion and a posterior portion. The posterior portion is called the neutral arch of the vertebral arch. The anterior middle portion is called the centrum.
-Glenoid cavity: Also known as glenoid fossa, this is a shoulder part. It appears as a shallow depression in the scapula. This shallow depression or cavity forms the joint called the glenohumeral joint. Also known as the ball and socket joint, synovial joint.
-Olecranon fossa: The humerus bone of the forearm contains a deep depression in the shape of a triangle. This is called the olecranon fossa.
It is significant that the shallow depression in the scapula which receives the head of the upper arm bone is known as the glenoid cavity.
Therefore the correct answer is C. Glenoid cavity

Note: The human skeletal system is made up of 206 bones in total. At birth, the infant skeletal system consists of 270 bones, which decrease around adulthood as some bones fuse together. The axial skeleton makes up 80 bones in the human skeleton. Whereas, the appendicular skeleton makes up 126 bones of the skeletal system.