_____ is excess __________ ______ that has entered ___________ __________
lymph
interstitial fluid
lymphatic vessels
___________ ________ return fluids that have leaked from the blood __________ system back to the ______
Lymphatic vessels
vascular
heart
____________ ________ and tissues protect the body by removing foreign material from the _______
Lymphoid organs
lymph
_____________ ________ provide a site for __________ _______________
Lymphatic vessels
immune surveillance
the _____ ___________ duct
Drains lymph from the _____ ______ ________ and ______ _____ of _____ and ________ it empties into the blood at the junction of the __________ _________ and __________ ____________ _____
right lymphatic
right upper limb
right side
head
thorax
internal jugular
right subclavian vein
the ____________ _____, drains lymph from the _____ of the ____
, it empties into the blood at the junction of ___________ ___________ and ____ __________ ______
thoracic duct
rest
body
internal jugular
left subclavian vein
The __________ __________ lacks an ________ as a pump and are ___-___________ conduits the same mechanisms that promote blood flow in veins work the
________ action of skeletal muscles, _________ _________ in the thorax during breathing and ______ that prevent backflow
lymphatic system
organ
low-pressure
milking
pressure changes
valves
the pulse of nearby _________ promote lymph flow because __________ __________ are bundled in ___________ ________ sheaths with blood vessels
arteries
lymphatic vessels
connective tissue
_______ ________ in the walls of most ___________ _________ contract rhythmically helping to push lymph along
smooth muscle
lymphatic vessels
_____________ cells consists of ___________ _________ cells found in _________ ________ together with the ________ ________ that act as scaffolding
Lymphoid
immune system
lymphoid tissues
support cells
lymphoid cells
____________________ protects the body against __________, anything that ________ an ____________ ____________
Lymphocytes
antigens
provokes
immune response
lymphoid cells
___ _______________ manage the immune response and some directly attack and destroy infected cells
T lymphocytes
lymphoid cells
__ _______________ protect the body by producing plasma cells
B lymphocytes
lymphoid cells
_________ _____ are daughter cells produced by B-cells that secrete __________ into the blood or other infected cells that mark _________ for destruction
Plasma cells
antibodies
antigens
lymphoid cells
______________ are lymphoid cells that phagocytize foreign substances and helps activate T-cells
Macrophages
lymphoid cells
___________ _______ are lymphoid cells capture antigens and bring them to lymph nodes
Dendritic Cells
lymphoid cells
___________ ____ are lymphoid cells that are fibroblast-like cells that produce reticular fiber stroma to _________ other cell types in lymphoid organs and tissues
Reticular Cells
support
Location of lymph nodes
Cluster along the __________ _________ of the body and are embedded in ______________ __________, large clusters are found near body surface in the __________, __________, and __________ regions or places where collecting lymphatic vessels converge to form trunks
Lymph nodes
lymphatic vessels
connective tissue
inguinal
axillary
cervical
function of lymph nodes
Act as lymph _______, _____________ in the nodes remove and destroy debris that enters the lymph from ________ ____________ ______ it prevents them from being delivered to the ______ and spreading to other parts of the body
filters
macrophages
loose connective tissue
blood
function of lymph nodes
responsible for _________ _________ activation, nodes are placed where lymphocytes encounter ______ and _____________ _______ bring them to the nodes activate _______
immune system
antigens
dendritic cells
t cells
the ________ of lymph nodes possess germinal center contains dividing __ ____
and houses __ ____ in transit that circulate between blood, lymph nodes, and lymph, the also contain _________ _____
cortex
b cells
t cells
dendritic cells
the medulla of __________ _______ contain medullary cords which are thin inward extensions from cortical lymphoid tissue that contains both types of _______________
medullary cords
lymphocytes
the _______ ________ contains large lymphatic capillaries spanned by crisscrossing reticular fibers, it contains _____________ that _____________ foreign material in the flowing lymph
lymph sinus
macrophages
phagocytize
the _______ is a lymph organ is located in the left side of the abdominal cavity beneath the diaphragm
spleen
the ________ provides a site for ___________ proliferation and immune surveillance and response, it ________ aged, defective blood cells and platelets from the blood, the ___________ remove debris and foreign matter
it Recycles the breakdown products of ___ _______ ____ for reuse as well as storing blood _________ and ___________ for release into the blood when needed
Site for erythrocyte production in the fetus
spleen
extracts
lymphocyte
macrophages
red blood cells
platelets
monocytes
the _______ is a lymph organ is found in the inferior neck and extends into the superior thorax
thymus
the _______ allows __ __________________ precursors to mature and become __________________ lymphocytes
thymus
t lymphocyte
immunocompetent
__________ _______ are found at the posterior end of oral cavity they are the largest and most commonly infected
palatine tonsils
_________ _________ are lymphoid follicles at the base of the tongue
lingual tonsils
____________ __________ are found at the posterior wall of the nasopharynx
pharyngeal tonsils
________ _______ surround the openings of the auditory tubes into the pharynx
tubal tonsils
__________ are rings of __________ tissue around the entrance of the __________
tonsils
lymphoid
pharynx
____________ gather and remove many of the pathogens entering the ________ in the food or in inhaled air
tonsils
pharynx
___________ ________ trap bacteria and particulate matter it lets immune cells build a memory for the trapped pathogens to increase longer-term immunity
Tonsillar crypts
____________ are large clusters of lymphoid follicles that are structurally similar to tonsils and located in the wall of the distal portion of the small intestine, the prevents pathogens in passages from penetrating the _______ membrane lining
peyers patches
mucous
Large lymphatics get nutrients from blood of the _____ ________
vasa vavorum
MALT refers to _______ ____________ _______ ________ they protect passages open to the ________ like the walls of ________ or the mucosa of the __ ______
Mucosa associated lymphatic tissue
exterior
bronchi
gi tract
Lymph capillaries increase their _________________ during inflammation
permeability
Lymph returns leaked ________ and excess ______
proteins
fluid
the lymphatic system is absent in the ______ and _____
bones
CNS
__________ are lymph capillaries that absorb ___ from the GI tract
Lacteals
fat
________ is fatty lymph from GI tract
chyle