Lymphatic System

Lymphatic System

Define: the system of vessels, cells, and organs that carries excess fluids to the bloodstream and filters pathogens from the blood.

Lymph Nodes

Define: the structures that filters debris and pathogens from lymph.

Lymph

Define: the fluid collected by lymphatic capillaries.

Dietary Fats

The lymphatic system transports ___ from the digestive system.

Lacteals

Define: structures in the small intestine that absorb dietary fats.

Chylomicrons

Define: structures that package absorbed fats for transport.

Interstitium

Lymphatic capillaries are distributed throughout the ___.

Interstitium

Define: the space between cells and tissues where fluid is found.

Simple Squamous

The type of epithelium formed in lymphatic capillaries are __.

Venous

Lymphatic fluid eventually flows back into the bloodstream via ___ circulation.

3

Lymphatic vessels have ___ layers.

Smooth Muscle

The muscle that helps contraction of lymphatic vessels from the inside is ___.

Valves

Lymph vessels contain ___ that ensure one-way lymph flow.

Skeletal Muscle

The muscle that helps contraction of lymphatic vessels from the outside is ___.

Right Lymphatic Duct

Define: a major connection between the lymphatic and circulatory systems at the right subclavian vein.

Thoracic Duct

Define: a major connection between the lymphatic and circulatory systems at the left subclavian vein.

Afferent Vessels

Vessels entering the lymph nodes are ___.

Efferent Vessels

Vessels exiting the lymph nodes are ___.

Cortex

Lymph nodes consist of an outer ___.

Medulla

Lymph nodes consist of an inner ___.

Sinuses

The cortex of lymph nodes have open areas called ___.

Medullary Cords

The medulla of lymph nodes contain __ which are branching structures of lymphatic tissue.

Medullary Sinuses

The medulla of lymph nodes have open areas for ___.

Macrophages

The white blood cells ___ in lymph nodes phagocytize bacteria and debris.

Sinuses

The macrophages in lymph nodes are found in the ___.

Germinal Centers

Lymphocytes are located in ___ of lymph nodes.

Bone Marrow

T and B Lymphocytes are produced in the ___.

Spleen

Define: the lymphatic organ that acts as a blood reservoir.

Thymus

Define: the lymphatic organ that is associated with T Cell development.

MALT

Lymphatic tissues found outside of lymph nodes are organs are called ___.

Spleen

The organ that contains red and white pulp is the ___.

White Pulp

The splenic pulp associates with arteries.

Red Pulp

The splenic pulp associates with veins.

Hilum

The splenic artery and vein enter and exit the spleen through the ___.