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