Connective Tissue Quiz

Special cells in the middle layer of the embryo (mesoderm) that have the potential to become many different types of connective tissues.

A type of connective tissue cell that's responsible for creating the 'glue' and 'fibers' that hold tissues together. They are the most common type of connective tissue cell.

The fluid-filled space between connective tissue cells, containing molecules that help support and communicate with the cells.

Strong, rope-like strands found in connective tissue that provide support and structure. They are made up of proteins like collagen and elastin.

A group of cells that are part of the body's immune system and travel through the bloodstream to reach sites of infection or injury.

Connective tissue cells that are long-lived and permanently reside in a specific connective tissue type.

These cells are key players in fighting infections and allergies. They can release chemicals like histamine, which causes inflammation.

Cells that engulf and destroy invading microorganisms and cellular debris. They are important for clearing up infections and damaged tissue.

Active fibroblasts are responsible for producing and secreting collagen and other components of the extracellular matrix.

Inactive fibroblasts, also known as fibrocytes, are smaller and less active than their active counterparts. They have a more ovoid shape and fewer organelles.

Myofibroblasts are specialized fibroblasts that have characteristics of both fibroblasts and smooth muscle cells. They contract to help close wounds and play a role in fibrosis.

Unilocular fat cells are large cells with a single, large lipid droplet. They make up white adipose tissue.

Multilocular fat cells are smaller and more polygonal than white fat cells. They contain multiple, small lipid droplets and form brown adipose tissue.

Heparin is an anticoagulant released by mast cells, preventing blood clotting.

Histamine and Leukotrienes are vasodilators and smooth muscle contractors released by mast cells.

A severe, potentially life-threatening allergic reaction triggered by exposure to an allergen, usually after a second exposure. Symptoms include difficulty breathing, hives, and a drop in blood pressure.

A chemical released by mast cells and other cells involved in inflammation.

The process by which white blood cells leave the bloodstream and enter the tissues to fight infection or injury.

The intense blue staining of a cell's cytoplasm, usually due to the presence of a large amount of ribosomes.

Cells derived from B lymphocytes that produce antibodies, proteins that help the immune system target specific invaders.

The release of granules from a cell, often containing chemicals like histamine, which contributes to inflammation.

A life-threatening condition that occurs when the body's immune system overreacts to an allergen, causing a rapid and severe drop in blood pressure, airway constriction, and swelling.

The largest white blood cell in the blood, characterized by a kidney-shaped nucleus and abundant lysosomes.

A type of white blood cell that is responsible for adaptive immunity, recognizing and attacking specific foreign invaders.

A type of lymphocyte that matures in the bone marrow and produces antibodies to fight infections.

A type of lymphocyte that matures in the thymus and directly attacks infected or cancerous cells.

A group of lymphocytes that include natural killer (NK) cells and other cells that play a role in innate immunity.

A group of identical cells that can recognize and respond to the same specific antigen.

The most numerous white blood cells, accounting for 60-70% of the total leukocyte population. They have a multilobed nucleus connected by chromatin and a pale cytoplasm. In females, their nucleus contains a distinctive 'drumstick' appendage containing the inactive second X chromosome (Barr body).

They are characterized by a bilobed nucleus and eosinophilic granules in their cytoplasm. They phagocytose antigen-antibody complexes and kill parasitic invaders.

They are characterized by an S-shaped nucleus and abundant basophilic granules in their cytoplasm. They mediate allergic and inflammatory reactions by releasing granules containing histamine and heparin.

A type of white blood cell with a single large nucleus and abundant cytoplasm. They engulf and destroy bacteria, viruses, and cellular debris.

A type of agranulocyte responsible for the adaptive immune response. They exist in various forms, including T lymphocytes and B lymphocytes, each with specific roles in recognizing and destroying specific pathogens.

An increase in the number of neutrophils in the blood. It often indicates a bacterial infection.

The process by which neutrophils engulf and destroy bacteria by utilizing the contents of their granules.

The fluid that accumulates at the site of inflammation, often containing dead white blood cells (particularly neutrophils) and bacteria.