lymphatic system

Question 1

what are the functions of the lymphatic system

Answer 1

• reabsorbs excess interstitial fluid
• transport dietary lipids
• lymphocyte development, and the immune response

Question 2

what is a lymph ?

Answer 2

tissue fluid (interstitial fluid) that enters the lymphatic vessels

Question 3

what are the components of the lymphatic system

Answer 3

lymph
lymphatic vessels
lymphatic organs
lymphatic cells

Question 4

what are your lymphatic vessels

Answer 4

lymphatic capillaries
lymphatic vessels
lymphatic trunks
lymphatic ducts

Question 5

what are your lymphatic organs ?

Answer 5

thymus
lymph nodes
spleen
tonsils

Question 6

lymphatic capillaries

Answer 6

tiny thin micro vessels located in spaces btw cells (not CNS) and drains extracellular fluid

Question 7

lymphatic collecting vessels

Answer 7

like blood vessels but thinner. Lymph is propelled by the movement of skeletal muscles, pulsing of nearby arteries and tunica media (smooth muscle).movement

Question 8

lymphatic trunks

Answer 8

carries lymph and then emptied into ducts

Question 9

lymphatic ducts

Answer 9

vessels that empties lymph into one of the subclavian veins. Two ducts- the right lymphatic duct and the thoracic duct

Question 10

lympahtic capillaries lacteals

Answer 10

located in the small intestine these capillaries are called lacteal
they pick up dietary lipids and lipid-soluble vitamins
The lymph of this area has a milky color due to the lipid and is also called chyle.

Question 11

drainage pattern

Answer 11

right lymphatic duct
Receives lymph from right half of head, neck, thorax and right upper limb, right lung, right side of heart, right surface of liver
thoracic duct

Thoracic duct
Drains lymph from lower limbs, pelvic cavity, abdominal cavity, left side of thorax, and left side of the head, neck and left upper limb

Question 12

movement of lymph

Answer 12

changes in pressure gradients and compression of lymphatic vessels help to move lymph towards the thorax and back into central circulation
skeletal muscle contraction
thoracic pressure changes due to breathing

Question 13

lymphatic cells

Answer 13

macrophages
epithelial cell
dendritic cells
lymphocytes

Question 14

what is the primary lymphatic organ

Answer 14

red bone marrow

thymus gland

Question 15

what are the secondary lymphatic organ

Answer 15

lymph nodes
lymph nodules
spleen

Question 16

lymph nodes

Answer 16

small, round or oval
located along the pathways of lymph vessels,
have an afferent vessel and efferent lymph vessels
act as a filter to remove debris and pathogens from the lymph (liquid)

Question 17

regional lymph node

Answer 17

is the lymph node where the lymph of the organ or part of the body drainage to firstly

Question 18

sentinel lymph node

Answer 18

cancer spread

Question 19

spleen

Answer 19

located on the lest epigastric region
largest lymphatic organ in the body
functions- blood storage
lymphocyte proliferation, blood filtration

Question 20

thymus

Answer 20

consist of two elongated lobes
is a large organ in the fetus
occupies the thoracic cavity behind the sternum
secretes lymphopoietin

Question 21

lymphangitis

Answer 21

inflammation of the lymph vessels
commonest cause bacteria called streptococcus pyogenes (most common)
red streaks through the skin

Question 22

lymphadenopathy

Answer 22

means a disease of the lymph nodes

lymph nodes become swollen/enlarged and may be painful to touch

Question 23

lymphomas

Answer 23

cancer originating either from the lymphocytes or the lymphatic tx in organs

Question 24

splenomegaly

Answer 24

enlarged spleen

various causes