Lymphatic System: SmartBook

Dissolved solutes are not common components of lymph.

FALSE

The spleen has an outer cortex and inner medulla.

FALSE

Lacteals pick up dietary

lipids

Lymph vessels transport dietary ______.

lipids

The spleen normally lies ______ to the left kidney.

lateral

In which abdominal quadrant is the spleen located?

left upper quadrant

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

trabeculae

The red pulp of the spleen is where ______ drainage of the blood occurs.

venous

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

white

Lymph flows through a lymph node in what order?

1. Afferent lymphatic vessel 2. Lymphatic sinuses 3. Efferent lymphatic vessel

Large clusters of lymph nodes are found in which of the following regions?

-cervical -inguinal -axillary

Which of these secondary lymphatic structures have a complete capsule?

-lymph node -spleen

Which of the following are normal functions of the adult spleen?

-phagocytosis of bacteria -act as a reservoir for platelets -phagocytosis of old erythrocytes

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

-red bone marrow -thymus

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

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

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

-roofing bones of the skull -vertebrae -sternum

Lymph is moved through lymph vessels by which of the following?

-skeletal muscle pumps -respiratory pump

Which of the following are considered secondary lymphoid structures where lymphocytes are housed after formation?

-spleen -tonsils -lymph nodes

Which of the following vessels have valves?

-veins -lymphatic vessels

Which of the following are normal constituents of lymph?

-water -ions -low concentration of proteins

Blood flows through the spleen in what order?

1. splenic artery 2. central artery of white pulp 3. splenic sinusoids of red pulp 4. splenic vein

The lymphatic system contains ______ lymphatic ducts.

2

On average, how much interstitial fluid becomes lymph each day?

3 liters

Often when a cancerous tumor is surgically removed from a patient, surrounding lymph nodes are removed as well. Why?

Cancers that metastasize will travel to nearby lymph nodes first.

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

Interstitial Fluid

Lymph vessels are found in the ______ system.

Lymphatic

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

Medullary cords

Which lymphocyte matures in the thymus?

T cells

What is the most common reason for a splenectomy?

abdominal injury

There are usually more ______ attached to a lymph node

afferent vessels than efferent vessels

The filaments that hold lymphatic capillary endothelial cells to surrounding tissues are called ________ filaments.

anchoring

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

arterial

Lymph from the breast travels through the ______ lymph nodes.

axillary

The thymus is a ______ organ.

bilobed

Lymph drains from lymphatic trunks into two lymphatic ______

ducts

Lymphoma is a ______ of the lymphatic tissues.

cancer

The lymph vessel network begins with lymphatic

capaillaries

The lobes of the thymus are surrounded by a connective tissue

capsule

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

capsule

The main difference between lymphatic organs and lymphatic nodules is that lymphatic organs have a ______ enclosing them.

capsule

The spleen is surrounded by a ______ made of dense irregular connective tissue

capsule

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

circulatory

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

cisterna

The largest lymph vessels are called lymphatic _____

ducts

Lymphatic capillaries are ______ vessels.

closed-ended

Each thymus lobule is divided into an inner medulla and an outer _______

cortex

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

Lymphoid nodules are also called lymphoid ______.

follicles

mature T lymphocytes

found in medulla

immature T lymphocytes

found in the cortex

Lacteals are located in the ______ tract.

gastrointestinal

The region where blood vessels and nerves enter and leave the spleen is called the

hilum

Excess interstitial fluid is driven into lymphatic capillaries primarily by what type of pressure?

hydrostatic

The cisterna chyli is directly ______ to the thoracic duct.

inferior

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

jugular

Dietary lipids enter the lymphatic system through tiny lymph vessels called _____

lacteals

Valves in lymphatic vessels are especially important in the ______ limbs.

lower

MALT stands for "mucosa-associated ______ tissue".

lymphatic

A buildup of excess interstitial fluid causes

lymphedema

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

The function of white pulp in the spleen is to

monitor the blood for foreign materials

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

Lymphatic sinuses in the cortex and medulla of the lymph node

provide a pathway for lymphatic flow

Lymphoid _____ are small clusters of lymphocytes that lack a complete capsule.

nodules

There are two categories of lymphoma, Hodgkin lymphoma, and __________ -Hodgkin lymphoma

non

Interstitial fluid is found ______ of cells.

outside

The small flaps that allow lymph to enter but not leave in lymphatic capillaries are made from _____

overlapping endothelial cells

The lymphatic nodules in the ileum of the small intestine are called ______ patches.

peyer

The adenoids are also called the _____ tonsils.

pharyngeal

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

pharyngeal tonsils

Which of the following are types of tonsils?

pharyngeal, palatine, lingual

All lymphocytes originate in the ______.

red bone marrow

The pulp of the spleen that acts as a platelet reservoir is the

red pulp

The right lymphatic duct drains lymph from which quarter of the body?

right upper

epithelial cells

secrete thymic hormones

The thymus ______ after puberty.

shrinks

The surgical removal of the spleen is called a

splenectomy

Blood drains out of the spleen through the

splenic vein

Red bone marrow is located within the trabeculae of ______ bone.

spongy

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

thoracic

Lymph from the right leg enters the bloodstream through the

thoracic ducts

T-lymphocytes migrate to and mature in the

thymus

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