Lymphatic System (12)

Question 1

the lymphatic system plays a role _______________________

Answer 1

as a circulatory system as well as immune system

Question 2

the lymphatic system consists of:

Answer 2

1. lymph
2. lymphatic vessels
3. lymphatic tissues and organs

Question 3

what is lymph?

Answer 3

connective tissue
fluid matrix

interstitial fluid

Question 4

what is interstitial fluid?

Answer 4

full of lymphocytes and macrophages (specialized cells)

Question 5

what are lymphatic vessels?

Answer 5

network throughout the body that passes through lymphatic tissues and organs to deliver Lymph throughout the system and back to the venous circulation

Question 6

lymphatic tissues and organs consists of:

Answer 6

1. tonsils
2. thymus gland
3. spleen
4. MALT
5. appendix
6. red bone marrow

Question 7

lymphatic vessels and lymph nodes consists of:

Answer 7

1. cervical lymph nodes
2. thoracic duct
3. axillary lymph nodes
4. lymphatics of mammary glands
5. cisterna chyli
6. lymphatics of the upper limb
7. lumbar lymph nodes
8. pelvic lymph nodes
9. inguinal lymph nodes
10. lymphatics of the lower limb

Question 8

what are lymph nodes

Answer 8

small nodules of tissue that contains the white blood cells/lymphocytes

Question 9

lymph nodes are covered by _______ and have little filters that fluid moves through

Answer 9

CT

Question 10

functions of the lymphatic system:

Answer 10

1. produce, maintain, and distribute lymphocytes
2. maintain normal blood volume and normal composition of interstitial fluid
3. facilitate fat absorption in digestive system
4. provide an alternative route for the transport of hormones, nutrients, and waste

Question 11

the primary route of the lymphatic system is:

Answer 11

circulatory system and blood as transporter

Question 12

the thymus sits ______ in the mediastinum and to the ______. it is also _____ to the sternum.

Answer 12

superiorly

heart

deep

Question 13

the thymus is very active during what stage of life?

Answer 13

adolescent/child until puberty

Question 14

function of the thymus decreases and it turns more into _________

Answer 14

fatty tissue and t cell production

Question 15

primary lymphatic organs:

Answer 15

thymus

red bone marrow

Question 16

secondary lymphatic structures:

Answer 16

1. lymph nodes
2. spleen
3. tonsils
4. peyer’s patches
5. MALT

Question 17

the blood pressure in systemic capillaries is :

Answer 17

~ 35 mmHg

Question 18

the ________ capillary pressure forces the interstitial fluid out of the blood plasma and into the ____________

Answer 18

systemic

interstitial fluid

Question 19

the interstitial fluid enters the ______ after being pushed out of the systemic capillaries

Answer 19

lymphatic system

Question 20

what wraps around the arterioles to help them contract?

Answer 20

smooth muscle creates pressure to push blood through the system

Question 21

_________ sits between the arteriole and the venule

Answer 21

capillary bed

Question 22

arteriole is the _________

Answer 22

smallest artery

Question 23

venule is the ________

Answer 23

smallest vein

Question 24

the lymphatic capillary have non-restrictive, loose, and jagged ______ walls because of ______

Answer 24

endothelial

overlap of endothelial cells

Question 25

the overlap of endothelial cells in the lymphatic capillary bed allows for high _________

Answer 25

permeability

Question 26

some of the systemic/blood capillary pressure forces the fluid to go to the interstitial fluid as well as the ______________

Answer 26

lymphatic capillary

Question 27

lymphatic capillaries are found ________

Answer 27

everywhere except the CNS, bone marrow, and epidermis

Question 28

lymphatic capillaries are ______ to the systemic/blood capillaries (location-wise)

Answer 28

adjacent

Question 29

systemic pressure is driven by _______ pressure

Answer 29

arterial

Question 30

lymphatic capillaries are larger in diameter than the __________ but has ______ and an irregular outline

Answer 30

systemic capillaries thinner walls

Question 31

____________ have anchoring filaments that connect them to surround CT that allow for high permeability

Answer 31

lymphatic capillaries

Question 32

lymphatic pressure is reliant to ______ pressure

Answer 32

arteriole

Question 33

systemic capillary pressure pushes fluid out of _______ capillaries into the _________. this is what creates the low pressure in the _________

Answer 33

arteriole interstitial fluid lymphatic system

Question 34

valves keep pressure flow moving _____________ within the lymphatic vessels and help prevent ______

Answer 34

in one direction backflow of lymph

Question 35

veins are _______ valves (multidirectional? one way?)

Answer 35

one way due to little pressure

Question 36

arteries have ____ walls compares to veins

Answer 36

thicker

Question 37

lymphatic vessels are larger than ________________

Answer 37

veins and arteries

Question 38

lymph fluid moves in one direction through the lymphatic system to one of two areas:

Answer 38

1. thoracic duct 2. right lymphatic duct

Question 39

the thoracic duct sits _________ to the thymus

Answer 39

left laterally

Question 40

the thoracic duct collects lymph from ______________________

Answer 40

both sides of the body inferior to the diaphragm (lower extremities + diaphragm) left upper extremities, superior to the diaphragm

Question 41

the right lymphatic duct sits _________ to the thymus

Answer 41

right laterally

Question 42

the right lymphatic duct collects lymph from _________

Answer 42

right side of the body superior to the diaphragm

Question 43

the lymph, passed the two ducts, ultimately ends up in _____________

Answer 43

superior vena cava

Question 44

_______________ are the primary cells of the lymphatic system

Answer 44

lymphocytes

Question 45

lymphocytes responds to:

Answer 45

invading bacteria, viruses, infections, abnormal body cells

Question 46

lymphocytes travel throughout the body via _________

Answer 46

lymph fluid

Question 47

lymphocytes exit the bloodstream to enter the __________ because they are made in ____________

Answer 47

interstitial spaces red bone marrow

Question 48

these are the different types of lymphocytes:

Answer 48

1. t cells 2. b cells 3. NK cells