Question

The joint between the incus and stapes is;
A. Hinge joint
B. Gliding joint
C. Pivot joint
D. Ball and socket joint

Answer 1

Hint:
Incus and stapes are the two smallest bones in the human body and are located in the middle ear. The incus is the anvil-shaped bone that connects the malleus (hammer) bone to the stapes (stirrup) bone. The stapes is a stirrup-shaped bone that transmits sound vibrations from the incus to the inner ear.

Complete step by step answer:
The joint between the incus and stapes is known as a ball and socket joint. It allows for rotation around the long axis of the bone (the horizontal plane). This makes it a good choice for articulating two bones in the head, such as when you hear someone say, "Your jaw pops."
A ball and socket joint is a type of joint that allows for a wide range of movements between two connected parts. It is formed by a round end of one part fitting into a concave socket of another part. Ball and socket joints are found in the shoulder, hip, elbow, and knee, and also in many other parts of the body such as the jaw, wrist, and ankle. The joint allows for greater flexibility than many other types of joints and is able to rotate in many directions. This means that they can accommodate both small movements, like opening your mouth wide, and large movements, like chewing food.

Option ‘D’ is correct

Note:
The Joint Between Incus & Stapes:
The incus is an earless bone located at the front part of your skull, just behind your ears.
The stapes is a thin bone that connects the incus to your middle or inner ear via a nerve cord.
When you move one side of your face up or down, the stapes move along with it because it's connected by a ball-and-socket joint called an articulator, which rotates on its axis (longitudinal plane).