Question

The lambdoidal suture is found betweenfrontal and parietal bones.temporal and ethmoid bones.parietal and occipital bones.frontal and sphenoid bones.

Answer 1

Answer:

The correct option is C. The lambdoidal suture is found between parietal and occipital bones.

Explanation:

Bones can be described as the white hard parts of the body out of which the skeletons of organisms are made.

Sutures can be described as joints which can only be found in the skull. The suture is kind of a fibrous joint.

The parietal bones and the occipital bones of the skull are connected by a connective tissue joint. This joint or suture is termed as the lamdoidal suture.

Answer 2

Answer:

The lambdoidal suture is found between parietal and occipital bones.

Explanation:

Sutures are fibrous joints. Joint is a structure that provides connections between two or more bones or rigid parts of skeleton. Joints are classified on on the type of substance which provides connection. The types are as follows:

1- Synovial Joints

Joints are connnected by a joint capsule made of fibrous later outside lined inside by a synovial membrane.

They are the most common type of joint and allow free movement.

Examples: Hip joint, Elbow joint, Knee Joint

2- Fibrous Joints

Joints are connected by fibrous tissue. Sutures belong to this category of joints in which skull bones are unites by fibrous membranes.

3- Cartilagenous Joints

Joints are connected by cartilage.

Example: Intervertebral discs in spine.

SUTURES:

Sutures are fibrous joints in the skull. They connect different bones of the skull. They interlock the bones along a wavy line.

Human skull consists of 8 bones. They are

1- Frontal

2- Ethmoidal

3- Sphenoidal

4- Occipital

5- Two sets of Parietal Bones

6- Two sets of Temporal Bones

CORONAL SUTURE:

Separates frontal and two parietal bones.

SAGITTAL SUTURE:

Separates the two parietal bones

LAMBDOIAL  SUTURE (ALSO KNOWN AS LAMDOID SUTURE)

Separates the occipital bone and two parietal bones.

SPHENOFRONTAL SUTURE:

Separates the sphenoid and frontal bones.

Hence if we come back to the question,

• The suture between frontal and parietal bones is coronal suture.

• The is no suture between ethmoid and temporal bones as they do not articulate or unite.

• The suture between parietal and occipital bones is Lamdoidal suture and is the correct answer.

• The suture between frontal and sphenoid bones is Sphenofrontal suture.