Chapter 21 lymphatic system

Identify the structures in the pictures.

A - Lymphatic capillary B - Arteriole C - Capillary bed D - Venule

Identify the structures.

A - Lymphatic nodule B - Medullary sinus C - Hilum

Identify each structure in the picture.

A - Splenic vein B - Splenic artery C - Hilum

Identify the lymphatic tissues and organs pictured.

A - Tonsils B - Thymus C - lymph nodes (axillary) D - Spleen E - Malt (mucosa-associated lymphatic tissue) in small intestine

Identify the structures in the picture.

A - right lumbar trunk B - cisterna chyli C - left lumbar trunk D - left intestinal trunk

Identify the lymphatic vessels in the pictures.

A = Right Lymphatic duct B = Thoracic duct C = Cisterna chyli D = Lymphatic trunks E = Lymphatic vessels

Identify each organ in the picture.

A = Thyroid gland B = thymus C = Heart D = diaphragm

Identify the structures in the picture of the lymph node.

A = Valve B = Capsule C = Trabecula D = Hilum

______ vessels carry lymph into a lymph node.

Afferent

Lymph flows through a lymph node in what order?

Afferent lymphatic vessel Lymphatic sinuses Efferent lymphatic vessel

_____ filaments hold lymphatic capillary endothelial cells to surrounding tissues.

Anchoring

True or false: The spleen has an outer cortex and inner medulla.

FALSE

Reed-Sternberg cells are present in ______ lymphoma.

Hodgkin lymphoma

When blood plasma leaks out of the capillaries it is then called ______.

Interstitial fluid

Which of the following are normal constituents of lymph?

Low concentration of protein' Ions water

The function of white pulp in the spleen is to ______.

Monitor the blood for foreign materials

As the interstitial hydrostatic pressure increases, is more or less fluid driven into the lymphatic capillaries?

More

Which of the following are types of tonsils?

Palatine tonsils - each side of the soft palate Pharyngeal tonsils - in the upper part of the throat Lingual tonsils - on the back of the tongue

When tonsils are found in the posterior wall of the nasopharynx?

Pharyngeal tonsil

_____________ lymphatic structures are involved in the formation of lymphocytes.

Primary

Which of the following are considered primary lymphatic structures where lymphocytes are produced?

Thymus red bone marrow

Identify the structures.

a - Pharyngeal tonsil b - Palatine tonsil c - Lingual tonsil

Identify the microscopic structures of the thymus in the picture.

a - trabecula b - cortex c - capsule d - medulla

Identify the lymphatic structures in the picture.

a = Right Lymphatic duct b - Thoracic duct c - Cisterna chyli

The lymph node is surrounded by a tough connective tissue layer called the _________________.

capsule

Non-Hodgkin lymphomas are _______ Hodgkin lymphomas.

more common than

Lymphatic _____ are small cluster of lymphocytes that lack a complete capsule.

nodules

Lymphatic sinuses in the cortex and medulla of the lymph node _________.

provide a pathway for lymphatic flow

The _______ pulp of the spleen acts as a platelet reservoir.

red

Lymph from the green area (area A) drains into the ______________ lymphatic ducts.

right

Adult red bone marrow is found within spongy bone in which locations?

roofing bones of the skull Vertebrae Sternum

The thymus _____ after puberty.

shrinks

The ____ filters blood and acts as a blood reservoir.

spleen

Which of the following is the largest lymphatic organ in the body?

spleen

The surgical removal of the spleen is called a ______________.

splenectomy

Blood flows through the spleen in what order?

splenic artery central artery of white pulp splenic sinusoids of red pulp splenic vein

Blood drains out of the spleen through the

splenic vein

The larger lymph duct, the left lymphatic duct, is more commonly referred to as the _______________ duct.

thoracic

T-lymphocytes migrate to, and mature in the ______________.

thymus

The surgical removal of the tonsils is called a ____________.

tonsillectomy

The ________________ are masses of lymphatic tissue that protect against inhaled and ingested materials and are found within the pharynx.

tonsils

The two lobes of the thymus are divided into lobules by _____, extensions of the outer capsule.

trabeculae

Lymphatic _____ are formed from merging lymphatic vessels.

trunks

Lymph moves only one way through lymphatic vessels because of the presence of what internal structures?

valves

Lymphatic vessels resemble small ______.

veins

The spleen initiates an immune response when antigens are found in the blood. This function is associated with the _____________ pulp.

white

The right lymphatic duct drains which of the following parts of the body?

- right side of chest - right arm - right side of head and neck

The lymphatic system contains ____ lymphatic ducts.

2

Non- Hodgkin lymphomas are usually associated with abnormal _______.

b-lymphocytes

The ____ lymphatic vessels enter the lymph node and the ____ lymphatic vessels exit the lymph node.

afferent efferent

Lymph from the breast travels through the ___________ lymph nodes.

apical axillary and pectoral group

The white pulp of the spleen is associated with the ______ supply of the spleen.

arterial

Lymphoma is a _____ of the lymphatic tissues.

cancer

The lymphatic system aids the ______________ system by transporting excess interstitial fluid.

circulatory

A structure labeled A is the ______________ chyli.

cisterna

The ______ chyli carries chyle from the small intestine to the thoracic duct.

cisterna

Within a lymph node are open spaces called sinuses. In the cortex they are called ____________________ sinuses and in the medulla they are called medullary sinuses.

cortical

When excess interstitial fluid is not reabsorbed, the tissues swell causing a condition called _________________.

edema

The function of this organ is to ____________.

filter the blood for foreign matter

Match each cell type found in the thymus with its description.

immature T lymphocytes = found in the cortex mature T lymphocytes = found in the medulla epithelial cells = secrete thymic hormones

Lymph from the head and neck drains into the _________ trunks.

jugular trunks

Dietary lipids enter the lymphatic system through tiny lymph vessels called ______________.

lacteals

Lymphatic capillaries located in the GI tract are called _________.

lacteals

Lymphatic capillaries are usually ___________ in diameter than blood capillaries.

larger

Which of these secondary lymphatic structures have a complete capsule?

lymph node spleen

Place these structures in the order that lymph travels through them

lymphatic capillaries Lymphatic vessels Lymphatic trunks Lymphatic ducts

Malt Stands for "mucosa-associated ________ tissue".

lymphoid

The medulla of the lymph node is supported by connective tissue fibers called ___________________.

medullary cords

Cancerous cells can travel from one part of the body to another. This process is called.

metastasis