Lymphatic System Flashcards
The function of the lymphatic system acts as a ___ ____ ___, and transports and filters _____ ___ or ____.
secondary circulatory system, interstitial fluid, lymph
Fluid that collects outside and between cells
interstitial fluid / lymph
The lymphatic system removes ____ ___, ___ and ____ outside cells that can’t be taken up by capillaries, through the lymph. It is responsible for returning this tissue fluid to the ___ for use by the body or to be ___ later.
large proteins, particles, fluid, blood, excreted
The lymphatic system also monitors the body for _____ as it circulates interstitial fluid. In other words, it acts as a ___ ___ for pathogens, and plays a critical role in trigger an ____ ___
pathogens, sewer system, immune response
central lymphoid organs are the site of ___ __ and ____.
lymphocyte production, development
The peripheral lymphoid organs hold ____ lymphocytes that can initiate the ___ ___ ____.
mature, adaptive immune response
The thymus is the cite of ____ ____. T cells migrate here from the ___ ___ where they are produced, to undergo ___ and ____ _____. They mature in the __ ___ of the thymus before moving inward to the ___ for final maturation.
t-cell production, bone marrow, positive, negative selection, outer cortex, medulla
encompasses all immune cells
leukocytes
Type of immune cells like B cells and T cells
lymphocytes
The bone marrow produces and _____ ____ and ____. The ___ bone marrow contains ____ ___ cells that produce all the red and white blood cells in the body.
replenishes, lymphocytes, leukocytes, red, blood stem
The lymph nodes contain ____ that filter lymph and can initiate an __ ___. ___ lymph nodes is due to the __ ____ ___ ___ there, and is a sign of illness
leukocytes, immune response, swollen, white blood cells
The spleen ___ ___ and recognizes and removes old or damaged ___ __ ____. In early development, the spleen is where early red blood cells get ____.
filters blood, red blood cells, made
The adenoids are a mass of ___ ___ at the back of the throat. They inspect incoming ___ and ___ for pathogens
lymphatic tissue, food, air
The appendix is a small projection from the ___ ___ that contains lymphoid tissue. It aids in destroying ___ before they breach the ___ __ during absorption
small intestine, bacterial, intestinal wall
The peyer’s patches are large aggregates of lymphoid tissue in the ___ _____. They play an important part in scanning for pathogens in ____. _____, which are lymph vessels surrounded by capillaries, function for __ ____
small intestine, food, lacteals, fat absorption
Lymph is a fluid that starts as ___ __ forced out of the capillaries by ___ ___ by the pumping of the heart. Whatever is not reabsorbed by capillaries is picked by ___ ____.
blood plasma, hydrostatic pressure, lymph vessels
Most lymph is picked up at the ends of the lymph vessels called the ___ ____. The lymph travels in from ____ pressure to ___ pressure through _____ openings that prevent back flow to the ___ ____
lymphatic capillaries, high, low, one-way, interstitial space
When fluid is outside the cells, it is called __ ___, when fluid is inside the lymphatic capillaries it is called ___
interstitial fluid, lymph
The lymphatic capillaries _____ lymph all over the body. However they are absent from ___, __ ___, ___ and the ____. They can be found weaving in and around the capillaries of the ____ ____, to help absorb excess fluid and particles that the capillary beds can’t properly reabsorb
drain, bone, bone marrow, teeth, CNS, circulatory system
Movement of the lymph fluid in the lymphatic capillaries is further assisted by ___ ____ that prevent backflow, like ___. The movement of __ ____ adjacent to the lymphatic vessels will squeeze on them to further push the fluid. Larger lymph vessels are lined with __ ___ that create forces to continue lymph movement. Lymphatic fluid moves progressively to ____ vessels
one-way valves, veins, skeletal muscles, smooth muscles, larger
The lymphatic vessels returns lymph to the ___ to rejoin the circulatory system, where they form part of the ___ _____. This occurs at the ___ ___ __ and _____ ____
blood, blood plasma, right lymphatic duct, thoracic duct
The right lymphatic duct drains all lymph from the ___ ___ ___, and empties into the __ ___.
upper right. area, jugular vein
The thoracic duct drains lymph from the __ of the body and empties into the ___ ___
rest, subclavian vein
Both the right lymphatic duct and the thoracic duct eventually lead to ___ veins that merge with the ___ ___ __, which empties the blood into the heart so it can be circulated throughout the body
large, superior vein cava
Lacteals are ___ ___ in the __ ____, located in the ____ of the small intestine. They absorb ___ after they have been ____ and broken down by digestive enzymes. This is needed because fats are too ____ to be absorbed by the capillaries of the circulatory system. The lacteals will absorb the fats first, then the fats in the ___ ___ are eventually dumped back into the circulatory system where they can be provided to the cells of the body
lymphatic capillaries, digestive system, villi, fats, emulsified, big, lymphatic fluid
During a lymph vessel blockage, such as.a ___ pressing against a lymph vessel, fluid ____ in the tissues instead of being taken back to circulation, and ___ or swelling can further constrain __ and ___ flow.
tumor, pools, edema, blood, lymph
Lymph node biopsy is used to detect ___ and determine where cancer cells have ____. This is because lymphatic system drains from various tissues, and serve as a ____ for the ___ of more aggressive cancers
cancer, travelled, pathway, migration
