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Connective tissue is the most abundant and widely distributed of the primary tissues, including ______________, ______________, ______________, and blood.
Four main classes of connective tissue.
All connective tissue arises from an embryonic tissue called _____________.
Mesenchyme.
Each major class of connective tissue has a fundamental cell type that exists in immature and mature forms. Immature cells are called ___________ cells.
'Blasts' cells.
Ground substance is an unstructured gel-like material that fills the space between the cells. It consists of _____________, _____________, ________________ and protein fibers.
Interstitial fluid, cell adhesion proteins, proteoglycans.
Collagen fibers are strong, flexible bundles of the protein ____________, the most abundant protein in your body.
Collagen.
___________ cartilage provides firm support with some pliability, found at tips of long bones, nose, trachea, larynx, and cartilage of the ribs.
Hyaline.
____________ connective tissue contains closely packed bundles of collagen fibres running in the same direction, making up tendons and ligaments.
Dense regular.
Cartilage has a jelly-like extracellular matrix secreted from _____________ (immature cells) and _____________ (mature cells).
Chondroblasts and chondrocytes.
Blood is classified as a connective tissue because it develops from mesenchyme and consists of blood cells and plasma protein fibres surrounded by _____________.
Blood plasma.
The nonliving extracellular matrix in connective tissue supports cells so that they can bear weight and withstand _____________.
Tension.
____________ connective tissue forms the internal mesh-like stroma that supports the lymph nodes, the spleen, and bone marrow.
Reticular.
Mature '______ ' cells are less active and help maintain the health of the matrix.
'Cyte' cells.
Connective tissue _____________ are extremely strong and provide high tensile strength to connective tissues.
Collagen fibers.
____________ connective tissue contains thick bundles of collagen fibres arranged in two or more different directions and is found in the dermis.
Dense irregular.
____________ connective tissue is a richly vascularized tissue that functions in nutrient storage, protection, and insulation.
Adipose.
Cartilage is a highly resilient, molded tissue that consists mostly of _____________ but contains no blood vessels or nerves.
Water.
__________ fibers contain elastin, which allows them to be stretched and to recoil.
Elastic fibers.
The perichondrium is a layer of dense irregular connective tissue that holds the ____________ together and contains blood vessels to supply nutrients.
Cartilage.
The fibrous connective tissue cell that secretes fibers and ground substance is called a _____________.
Fibroblast.
Fat cells that store nutrients are called _____________.
Adipocytes.
__________ blood cells, such as neutrophils, eosinophils, and lymphocytes, respond to tissue injury.
White blood cells.
______ connective tissue has an exceptional ability to support and protect body structures due to its hardness, which is determined by collagen fibers and _____________.
Bone and calcium salts.
The extracellular matrix of connective tissues consists mainly of nonliving _____________ that separates the cells of the tissue.
Extracellular matrix.
Common characteristics of connective tissue include _____________, _____________, and _____________.
Common characteristics include a rich supply of blood vessels, a high degree of variability in tissue type, and an extracellular matrix.
The structural elements of connective tissue consist of _____________, _____________, and _____________.
The structural elements consist of cells, fibers, and ground substance.
The types of connective tissue found in the body include _____________, _____________, _____________, and _____________.
The types include loose connective tissue, dense connective tissue, cartilage, and bone.
Loose connective tissue primarily serves _____________ and _____________ functions.
Supports and cushions organs.
Adipose tissue primarily functions in _____________ and _____________.
Energy storage and insulation.
Cartilage can be classified into three types: hyaline, _____________, and _____________.
Elastic and fibrocartilage.
The primary function of dense regular connective tissue is to _____________ and _____________.
Withstand tensile forces and provide structure.
Bone serves as a connective tissue that provides _____________ and _____________.
Support and protection.
