Lymphatic System and Circulation Quiz

<p>It becomes part of the interstitial fluid within the tissue spaces. (B)</p> Signup and view all the answers

<p>Glucose, amino acids, electrolytes, and white blood cells. (C)</p> Signup and view all the answers

<p>Is the primary site of erythrocyte production in adults (B)</p> Signup and view all the answers

<p>Posterior end of the oral cavity (D)</p> Signup and view all the answers

<p>Reticular connective tissue (B)</p> Signup and view all the answers

<p>Proliferation of B lymphocytes (D)</p> Signup and view all the answers

<p>Loose arrangement of lymphoid cells (C)</p> Signup and view all the answers

<p>Transporting lymph fluid out of the spleen (D)</p> Signup and view all the answers

<p>Lymphoid tissue (B)</p> Signup and view all the answers

<p>Hilum (A)</p> Signup and view all the answers

<p>Chyle (A)</p> Signup and view all the answers

<p>Lymphatic capillaries → First collecting vessels → Trunks → Ducts (B)</p> Signup and view all the answers

<p>They possess fewer internal valves compared to veins. (B)</p> Signup and view all the answers

<p>Intestinal trunk (C)</p> Signup and view all the answers

<p>The right upper limb and the right side of the head and thorax (A)</p> Signup and view all the answers

<p>Anterior to the first two lumbar vertebrae (D)</p> Signup and view all the answers

<p>Thymus (B)</p> Signup and view all the answers

<p>Pluripotent stem cells, lymphocytes, plasma cells, monocytes, megakaryocytes, connective tissue, stromal cells and adipocytes (A)</p> Signup and view all the answers

<p>To collect excess interstitial fluid and proteins (D)</p> Signup and view all the answers

<p>Overlapping endothelial cells forming minivalves (D)</p> Signup and view all the answers

<p>Valves present in lymphatic vessels (B)</p> Signup and view all the answers

<p>The heart's pumping action (D)</p> Signup and view all the answers

<p>To anchor endothelial cells and prevent collapse (A)</p> Signup and view all the answers

<p>The small intestine (B)</p> Signup and view all the answers

<p>They open, allowing fluid to enter the capillary (C)</p> Signup and view all the answers

<p>The Heart (B)</p> Signup and view all the answers

<p>Towards the heart from the tissues (D)</p> Signup and view all the answers

<p>Thin walls and low pressure (B)</p> Signup and view all the answers

<p>Filtration of lymph and immune system activation (B)</p> Signup and view all the answers

<p>It does not directly fight antigens and lacks B cells (D)</p> Signup and view all the answers

<p>Near the body surface where collecting vessels converge forming trunks (D)</p> Signup and view all the answers

<p>To divide the node into compartments (D)</p> Signup and view all the answers

<p>Site of B-cell proliferation (D)</p> Signup and view all the answers

<p>In the deeper cortex (B)</p> Signup and view all the answers

<p>Afferent lymphatic vessels (B)</p> Signup and view all the answers

<p>Lymphocytes, macrophages and plasma cells (D)</p> Signup and view all the answers

The lymphatic system is a network of vessels, tissues, and organs that help maintain fluid balance in the body, remove waste products, and fight infections.

Interstitial fluid is the fluid that surrounds cells in tissues. It contains water, nutrients, and waste products.

The leaky capillaries allow some blood fluid to escape into the surrounding tissues, forming interstitial fluid.

Lymphatic vessels are thin tubes that collect interstitial fluid and transport it back to the bloodstream. They have valves to prevent backflow.

The lymphatic system helps return excess fluid from the tissues back to the bloodstream, maintaining blood volume and preventing fluid buildup.

Milky white fluid that drains from the small intestine, containing absorbed fats and lymph.

A network of vessels that transport lymph throughout the body, starting with lymphatic capillaries and ending with larger ducts.

Small, bean-shaped organs that filter lymph, removing pathogens and debris, and house immune cells.

Large, soft organ located in the upper left abdomen, involved in filtering blood, storing platelets, and housing immune cells.

The site of production of all immune cells, including B cells and pre-T cells, located in flat bones and the epiphyses of long bones.

A gland located in the superior thorax, essential for the development and maturation of T cells during early life.

The larger of the two lymphatic ducts, collecting lymph from most of the body and emptying it into the venous system.

The smaller lymphatic duct, draining lymph from the right upper limb, right side of the head and thorax.

A network of vessels, tissues, and organs that functions to return excess fluid from tissues to the bloodstream, support immune responses, and transport fats.

The fluid that circulates within the lymphatic system, composed of interstitial fluid, proteins, and immune cells.

Tiny, blind-ended vessels that collect interstitial fluid and drain into larger lymphatic vessels.

An organ involved in the maturation of T cells, a type of immune cell.

Lymphatic tissues located in the mucous membranes of the digestive, respiratory, and genitourinary systems.

A specialized lymphatic capillary found in the small intestine that absorbs dietary fats and transports them to the bloodstream.

The largest lymphoid organ of the body located on the left side of the abdomen beneath the diaphragm.

The spleen serves as a site where lymphocytes proliferate, ensuring a constant supply of these immune cells.

The spleen plays a crucial role in the body's immune response, responding to foreign invaders and infections.

The spleen is responsible for breaking down aged red blood cells and platelets, ensuring the body only uses healthy components.

The spleen also stores breakdown products from aged red blood cells, providing a readily available source for future use.

During fetal development, the spleen is responsible for producing red blood cells.

A type of loose connective tissue that provides structural support in many lymphoid organs.

These macrophages act like tiny 'vacuum cleaners' within the reticular connective tissue network, engulfing and breaking down foreign invaders.

T lymphocytes mature in the thymus, a specialized organ that provides an environment for their development and selection, ensuring they become immunocompetent and can effectively fight infections.

The thymus lacks B cells and therefore lacks follicles, structures found in other lymphoid organs where B cells are concentrated.

The thymus is unique as it lacks a reticular fiber stroma. Instead, it has a supportive framework made of epithelial cells, which play a crucial role in T cell development.

Unlike other lymphoid organs, the thymus doesn't directly engage with antigens. It provides the environment for T cell maturation, preparing them to encounter and fight antigens later in the immune system.

Lymph nodes are vital for filtering lymph fluid and activating the immune system. By trapping pathogens and antigens, they initiate an immune response, effectively protecting the body from infections.

Trabeculae are connective tissue strands that extend inward from the capsule of the lymph node, subdividing the node into compartments. They support the internal structure and help organize the lymphatic tissue.

The cortex of the lymph node is the outer region containing follicles with germinal centers, where B cell proliferation occurs. The deeper cortex houses T cells in transit.

The medulla of the lymph node contains medullary cords, which are rich in lymphocytes, macrophages, and plasma cells. These cells play a crucial role in immune responses and antibody production.