Histology and Human Development - Connective Tissue

These flashcards cover key concepts related to connective tissues, including definitions, functions, cell types, and classifications.

What is the definition of connective tissue?

Connective tissue is a type of basic tissue of mesodermal origin that provides structural and metabolic support for other tissues and organs throughout the body.

What are the major functions attributed to connective tissues?

The functions include structural support, partitioning, defense, and nutrition supply.

What types of cells are found in connective tissue?

Connective tissue contains resident cells like fibroblasts and chondrocytes, and wandering cells such as lymphocytes and neutrophils.

What is the extracellular matrix (ECM)?

The ECM is the dominant component of supporting tissues that contains fibers and ground substance.

What are the main types of collagen and their locations?

Type I is found in skin, tendons, and bones; Type II in hyaline cartilage; Type III in reticulin fibers; Type IV in basement membranes.

What can cause difficulties in collagen synthesis?

Insufficient or abnormal collagen synthesis can result from genetic mutations or nutritional deficiencies, like vitamin C deficiency leading to scurvy.

What is the role of elastin in connective tissue?

Elastin provides elasticity and stretching properties to tissues such as skin, lung, and blood vessels.

What are glycosaminoglycans?

Glycosaminoglycans are long unbranched polysaccharides that attract water and contribute to the hydrophilic nature of ground substance.

What are the subtypes of connective tissue proper?

Connective tissue proper is classified into loose connective tissue and dense connective tissue, which can be regular or irregular.

Describe adipose tissue and its function.

Adipose tissue contains adipocytes adapted for fat storage and is considered an energy reservoir with a rich blood supply.

How does connective tissue respond to damage?

Connective tissue regenerates in response to damage, filling spaces with scar tissue, and healing relies on fibroblast activity.