Lymphatic

Question 0

Adaptive immunity

Answer 0

Specific recognition of pathogens as well as specific response to specific pathogen’s lymphocytes are responsible for this

Question 1

Innate immunity

Answer 1

Nonspecific present at birth ask the same against everything I E physical and chemical barriers of skin natural killer cells phagocytes inflammation and fever

Question 2

Function of lymphatic system

Answer 2

Assistant circulating bodily fluids help defend the body against diseases specialized form of reticular connective tissue that contains a large number of lymphocytes

Question 3

Functions of lymphatic system

Answer 3

Drains exes interstitial fluid transports dietary lipids carries out immune response

Question 4

Lymphatic capillaries

Answer 4

Closed at one end and unite to form lymphatic vessels

Question 5

Lymphatic vessels

Answer 5

Resemble small veins but Have thinner walls and more valves

Question 6

Lymph nodes

Answer 6

Located at intervals along lymphatic vessels contain masses of B cells and T cells

Question 7

What lacks lymphatic capillaries

Answer 7

A vascular tissue including cartilage epidermis and cornea of eye. also central nervous system portions of spleen and red bone marrow

Question 8

Specs of lymphatic capillaries

Answer 8

Greater permeability of them blood capillaries can absorb large molecules larger in diameter the blood capillaries have one way structure the permits interstitial fluid to flow in but not out

Question 9

Anchoring filaments

Answer 9

Attached to lymphatic capillaries there elastic and attach lymphatic endothelial cells to surrounding structures when excess interstitial fluid accumulates the tissue swells these anchoring filaments pool long fat capillaries and make opening between cells larger fluid then moves into lymphatic capillaries

Question 10

Lacteals

Answer 10

Special lymphatic capillaries for the small intestine they carry dietary lipids into lymphatic vessels and cause live to look creamy white called Chyle

Question 11

Lymphatic trucks

Answer 11

Lumbar intestinal bronchomediastinal jugular and subclavian

Question 12

Lumbar lymphatic truck

Answer 12

Adrenal gland Abdominal wall lower limbs viscera of pelvis kidney

Question 13

Intestinal emphatic truck

Answer 13

Stomach intestines pancreas spleen liver

Question 14

Bronchomediastinal lymphatic trunk

Answer 14

Thoracic wall lungs heart

Question 15

Subclavian and jugular lymphatic trucks

Answer 15

Subclavian upper limbs and jugular head and neck

Question 16

Lymphatic duct

Answer 16

Thoracic duct and right lymphatic duct. Lymphatic trucks lead to these ducks and these two ducks return lymph back to blood

Question 17

Boracic duct

Answer 17

A.k.a. left lymphatic duct about 15 to 18 inches long begins as a dilation known as the cisterna chyli anterior to second lumbar vertebrae main duct for returning lymph to the blood

Question 18

Thoracic duct received lymph from

Answer 18

Right and left lumbar trucks left jugular trunk left subclavian trunk left bronchomediastinal trunk. Receives live from left side of head from neck and chest upper limbs entire lower body than ribs. Return slip to the blood at the junction of the left internal jugular and left subclavian veins

Question 19

Right lymphatic duct

Answer 19

.5 inches long receives live from right jugular right subclavian right bronco mediastinal trunks upper right side of the body and drains and return slip back to blood at Junction of right internal and right subclavian vein

Question 20

Formation and flow

Answer 20

Blood plasma filter through capillaries to form interstitial fluid more fluid moves out and then back in (about 3 L a day of excess filtered fluid) interstitial space this exit fluid drains into lymphatic vessels and becomes lymph

Question 21

Important function of the vatic vessels

Answer 21

Return plasma proteins lost into the interstitial space back to the bloodstream

Question 22

Formation of lymph pathway

Answer 22

Capillaries interstitial space lymphatic capillaries lymphatic vessels lymphatic ducks junction of internal jugular and subclavian vein

Question 23

Lymphatic movement of fluid

Answer 23

Skeletal muscle pump and respiratory pump lymphatic vessels have valves like veins

Question 24

Primary lymphatic organs

Answer 24

Stem cells red bone marrow and thymus

Question 25

Secondary lymphatic organs

Answer 25

Lymph nodes spleen lymphatic nodules

Question 26

Thymus

Answer 26

Belobed organ in mediastinum located between sternum and aorta. Has connective tissue called trabeculae. penetrate inward and divide each lobe into lobules

Question 27

T cell production

Answer 27

Large number of T cells enter thymus cortex dendritic cells help with maturation. 2% of T cells survive to mature surviving T cells enter medulla

Question 28

Thymus medulla

Answer 28

Mature T cells epithelial cells dendritic cells macrophages. T cells leave dime us via blood and migrate to lymph nodes spleen and other lymphatic tissue

Question 29

Lymph node specs

Answer 29

Located along in Fattic vessels there is about 600 in the body they are superficial and deep and usually occurring groups 1 to 25 mm long covered by capsule dense connective tissue

Question 30

Flow-through lymph node

Answer 30

Enters effort lymphatic vessel penetrates convex surface of node at several points contains valve that open toward the center of the node live then enter sinuses

Question 31

Trabecular sinuses

Answer 31

Extend through cortex parallel to trabeculae

Question 32

Madullary sinuses

Answer 32

Extend through medulla and drain into one or two efferent lympatic vessels. wider and fewer in number then afferent vessels. contain valves open away from center of lymph node. come out of hilum along with blood

Question 33

Function of lymph nodes

Answer 33

Filter lymph. Foreign substances or truck by reticular fibers within the node. Macrophages destroy some and lymphocytes destroy others. With lots of afferent vessels and only a few efferent vessels travel time is slow

Question 34

Spleen

Answer 34

Oval-shaped and is the largest mass of lymphatic tissue in the body it’s 12 cm long below the ribs between the stomach and diaphragm

Question 35

Spleen impressions

Answer 35

Conforms to the concave surface of the diaphragm there is also gastric impression Renal impression and colic impression

Question 36

Hilum

Answer 36

Splenic artery splenic vein and Efferent lymphatic vessels

Question 37

White pulp

Answer 37

Lymphatic tissue full of lymphocytes and macrophages they are arranged around the branches of splenic artery (central arteries)

Question 38

Red pulp

Answer 38

Blood-filled venous sinuses cords of splenic tissue which consist of RBCs macrophages and lymphocytes and plasma cells and granulocytes veins are closely associated with Red pulp

Question 39

Functions of red pulp

Answer 39

Removal of worn out RBCs and platelets. storage of platelets. produce RBCs by hemopoiesis during fetal life

Question 40

Lymphatic nodules

Answer 40

Egg shaped masses of lymphatic tissue that are not surrounded by capsule. Scattered in G.I. tract urinary tract reproductive tract and respiratory airways. Sometimes occur in large aggregations what tonsils peyers patches(small intestine) and appendix