Chapter 4 - Tissue

Question 1

What are the four types of tissue?

Answer 1

Epithelial tissue
Connective tissue
Muscle tissue
Nervous tissue

Question 2

Histology

Answer 2

The Study of tissues

Question 3

Fibroblast

Answer 3

A type of cell that contributes to the formation of connective tissue

Question 4

Adipocytes

Answer 4

A cell specialized for storage of fat found in connective tissue

Question 5

Mesenchymal cell

Answer 5

multipotent stem cells found in bone marrow that are important for making and repairing skeletal tissues, such as cartilage, bone and the fat found in bone marrow.

Question 6

Collagen Fiber

Answer 6

the fiber in the extracellular matrix of connective tissues characterized by being elongated and made up of collagen glycoproteins. It is typically arranged in branching bundles of indefinite length. It is a strong insoluble fiber. It occurs in the skin, tendon, ligaments, bone, and cartilage.

Question 7

Elastic Fiber

Answer 7

essential extracellular matrix macromolecules comprising an elastin core surrounded by a mantle of fibrillin-rich microfibrils. They endow connective tissues such as blood vessels, lungs and skin with the critical properties of elasticity and resilience.

Question 8

Reticular Fiber

Answer 8

support the early extracellular matrix during the formation of scar tissue, the healing of wounds, and general development.

Question 9

Adipose Tissue

Answer 9

commonly known as body fat. It is found all over the body. It can be found under the skin (subcutaneous fat), packed around internal organs (visceral fat), between muscles, within bone marrow, and in breast tissue.

Question 10

Areolar Tissue

Answer 10

the type of tissue which connects and surrounds different organs in the human body. The important function of this type of tissue is that it provides nutrition to the cells and also acts as a cushion to protect the organs from various external forces.

Question 11

Reticular Tissue

Answer 11

a specific form of connective tissue predominating in several regions with high cellular content. Due to the distribution of reticular fibres, it exhibits a branching, and mesh-like appearance frequently referred to as reticulum (reticulin). These fibres are type III collagen fibrils.

Question 12

Dense regular connective tissue

Answer 12

a form of dense connective tissue characterized by the large, dense, and robust collagen fibers that are arranged in a parallel fashion. It makes it suitable for binding body parts together. It has great tensile strength resisting pulling forces, particularly from a single direction.

Question 13

Dense regular elastic tissue

Answer 13

Dense elastic tissue contains elastin fibers in addition to collagen fibers, which allows the tissue to return to its original length after stretching. Dense elastic tissues give arterial walls the strength and the ability to regain original shape after stretching (dense CT figure)

Question 14

Dense irregular connective tissue

Answer 14

Dense irregular connective tissue consists of mostly collagen fibers. It has less ground substance than loose connective tissue. Fibroblasts are the predominant cell type, scattered sparsely across the tissue.

Question 15

Dense irregular elastic tissue

Answer 15

dense irregular connective tissue provides strength, making the skin resistant to tearing by stretching forces from different directions.

Question 16

Chondrocytes

Answer 16

a cell which has secreted the matrix of cartilage and become embedded in it.

Question 17

Lacunae

Answer 17

are spaces in which bone cells are present. The main purpose of a lacuna in bone or cartilage is to provide a home for the cells it contains while also keeping them alive and functional. In bones, lacunae encase osteocytes; in cartilage, lacunae enclose chondrocytes.

Question 18

Hyaline cartilage

Answer 18

Hyaline cartilage is the glass-like (hyaline) and translucent cartilage found on many joint surfaces. It is also most commonly found in the ribs, nose, larynx

Question 19

Fibrocartilage

Answer 19

cartilage that contains fibrous bundles of collagen, such as that of the intervertebral disks in the spinal cord.

Question 20

Elastic Cartilage

Answer 20

Elastic cartilage is your most flexible cartilage. It supports parts of your body that need to bend and move to function. Elastic cartilage can bounce back to its original shape, even after a strong force. Your ear is made of elastic cartilage.