Chapter 16 PPT: Lymphatic Flashcards

1
Q

Three functions of lymphatic system?

A

Transport excess fluid away from the intersitital space and return to blood stream

Absorb lipids from digestive system and transport to bloodstream

Defends the body against diseases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Lymphatic Pathway

A

Lymphatic Capilaries

Lymphatic Vessels

Lymph Nodes

Larger Lymphatic Vessels

Lymphatic Trunks

Lymphatic Collecting Ducts

Subclavian Veins in Thorax

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are lacteals?

A

Lymphatic capillaries that absorb fats, and transport them to the blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Lymphatic CApillaries are microscopic,

A

closed-ended tubes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Lymphatic Capillaries networks..

A

parallel blood capillaries throughout the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Lymphatic Capillaries thickness?

A

Thin-Walled

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Lymphatic Capillaries walls formed from

A

simple squamous epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Lymphatic Capillaries tissue fluid enters

A

lymphatic capillaries, fluid is now called lymph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Lymphatic Capillaries merge into

A

lymphatic vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Lymphatic Vessels walls are similar to

A

veins, but thinner

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Lymphatic Vessels composed of what thre layers

A

Endothelial Lining (Inner)

Smooth Muscle (Middle)

Connective Tissue (Outer)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Lymphatic Vessels contains

A

semilunar valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Lymphatic Vessels ; Larger vessels lead to

A

lymph nodes and then to larger lymphatic trunks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Lymphatic trunks drain

A

lymph from lymphatic vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Lymphatic trunks named for the regions

A

they serve.

Examples include lumbar, intestinal, intercostal, bronchomediastinal, subclavian, and jugular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Lymphatic collecting ducts drain

A

lymph from trunks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the two lymphatic collecting ducts?

A

Thoracic Duct (Large) and Right Lymphatic Duct (Small)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The thoracic duct drains a much larger portion of body than

A

right lymphatic duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Breast drains to

A

axillary lymph nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

cancer surgery can disrupt

A

lymphatic flow and cause edema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The large thoracic duct drains into the

A

left subclavian vein near its junction with the left jugular vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The small right lymphatic duct drains into the

A

right subclavian vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Lymphatic Pathway Route

A

Lymphatic Capillary

Afferent Lymphatic Vessel

Lymph Node

Efferent Lymphatic Vessel

Lymphatic Trunk

Collecting Duct

Subclavian Vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Lymph is tissue fluid that has entered

A

a lymphatic capillary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Lymph formation depends on

A

tissue fluid formation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Capillary blood pressure filters

A

water and small molecules form the plasma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Capillary blood pressure that has been filtered results in tissue fluid that has:

A

The same composition as blood plasma

COntains water and dissolved nutrients, gases, hormones

Exception: Tissue fluid does not contain large plasma proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Plasma proteins remain in

A

blood plasma to maintain osmotic pressure necessary to draw fluid back into blood capillaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Tissue fluid =

A

blood plasma - plasma proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Filtration from the plasma normally exceeds

A

reabsorption, leading to the net formation of tissue fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

lymph filtration increases the

A

tissue fluid hydrostatic pressure within interstitial spaces, forcing fluid into lymphatic capillaries and forming lymph

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Lymph filtration prevents accumulation of

A

excess tissue fluid or edema

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Lymph inside lymphatic vessels has low

A

hydrostatic pressure, l ike venous blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Good lymphatic flow requires help from

A

several mechanisms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Muscle activity influences the movement of

A

lymph through the lymphatic vessels

36
Q

Contraction of skeletal muscles ….

A

compresses lymphatic vessels moving the lymph

37
Q

Respiratory process creates low

A

pressure in throax, and high pressure in abdomen during inspiraiton; sends lymph from abdomen to thorax

38
Q

Smooth muscle in larger lymphatic vessels contract to aid in

A

the flow on lymph

39
Q

Valves in lymphatic vessels prevent

A

backflow

40
Q

LYmphatic flow is highest during

A

physical exercise

41
Q

Roles of Lymphatic Capillaries: Absorption of

A

dietary fats

42
Q

Roles of Lymphatic Capillaries: Delivery of

A

absorbed fats to the bloodstream

43
Q

Roles of Lymphatic Capillaries: Return of small proteins filtered by

A

blood capillaries to bloodstream

44
Q

Roles of Lymphatic Capillaries: Collection of

A

excess interstitial fluid

45
Q

Roles of Lymphatic Capillaries: Delivery of

A

excess fluid to the bloodstream

46
Q

Roles of Lymphatic Capillaries: DElivery of foreign particles

A

to the lymph nodes

47
Q

Lymphatic tissue contains several cell types including

A

lymphocytes and macrophages

48
Q

What is Mucosa-Associated Lymphoid Tissue (MALT)

A

Unencapsulated lymphatic tissue of the digestive, respiratory, urinary, and reproductive tracts

49
Q

Tonsils and appendix are composed of

A

lymphatic nodules (conpact masses of lymphatic tissue)

50
Q

Peyer’s patches are

A

aggregates of lymphatic nodules found in ileum

51
Q

Lymphatic Organs consist of

A

encapsulated lymphatic tissue and include

lymph nodes, thymus, and spleen

52
Q

Lymph nodes usual shape?

A

bean shape, <2.5 cm long

53
Q

Lymph nodes located along

A

lymphatic vessels; filter pathogens from lymph

54
Q

Lymph nodes contain lymphocytes to

A

attack viruses, bacteria, and parasitic cells

55
Q

Lymph nodes contain

A

macrophages to engulf and destroy foreign substances, damaged cells, and cellular debris

56
Q

Lymph nodes are found ing roups or chains along the

A

paths of the larger lymphatic vessels throughout the body

57
Q

Lymph nodes not found in

A

central nervous system

58
Q

Major locations of Lymph Nodes

A

Cervical Region

Axillary REgion

Supratrochlear REgion

Inguinal Region

Pelvic Cavity

Abdominal Cavity

Thoracic Cavity

59
Q

2 Primary Functions of Lymph Nodes

A

Filter potentially harmful particles form the lymph

Immune surveillance: Monitor body fluids via macrophages and lymphocytes

60
Q

aLong with the red boen marrow, the lymph nodes are centers for

A

lymphocyte production

61
Q

Lymphocytes ataack various

A

pathogens in lymph nodes

62
Q

Macrophages engulf and digest

A

foreign substances, damaged cells, adn debris

63
Q

Thymus is what type of gland?

A

Soft, bilobed gland

64
Q

Thymus located in

A

mediastinum

65
Q

Thymus divided into

A

lobules

66
Q

Lobules contain

A

lymphocyes derived from progenitor cells in red bone marrow

67
Q

Most thymus cells are

A

inactive, called thymocytes

68
Q

Thymus; some cells mature into

A

functional

69
Q

T CElls do what?

A

Leave thymus to provide immunity

70
Q

What is Thymosins?

A

Hormones produced in thymus; stimulate T Cell Maturation

71
Q

Thymus is large in

A

infancy and early childhood

72
Q

Thymus shrinks at

A

puberty

73
Q

Thymus small in

A

an adult

74
Q

Thymus in elderly , lymphatic tissue is replaced by

A

adipose and other connective tissues

75
Q

Spleen is the largest

A

lymphatic organ

76
Q

Spleen located in

A

upper left part of abdominal cavity

77
Q

Spleenn resembles

A

large lymph node

78
Q

Spleen contains

A

venous sinuses filled with blood

79
Q

Spleen contains two tissue types

A

White Pulp (Lymphocytes)

Red Pulp (Red Blood Cells, Lymphocytes and MacrophageS)

80
Q

Spleen filters

A

blood, like lymph nodes filter lymph

81
Q

Lymph Location

A

In groups or chains along the paths or larger lymphatic vessels

82
Q

Lymph Nodes Function

A

Filter foreign particles and debris from lymph; house lymphocytes and destroys foreign particles in lymph;

house macrophages tht engulf and destroy foreign particles and cellular debris carried in lymph

83
Q

Thymus Location

A

Int he mediastinum posterior to the upper portion of the body of the sternum

84
Q

Thymus Function

A

Houses Lymphocytes; Differentiates Thymocytes into T Lymphocytes

85
Q

SPleen Location

A

Int he upper left portion of the abdominal cavity, inferior to the diaphragm and posteiror and lateral to the stomach

86
Q

SPleen Function

A

Houses macrophages that remove foreign particles, damaged red blood cells, and cellular debris from the blood

contain lymphocytes