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Anatomy 2 > Lymphatic System > Flashcards

Lymphatic System Flashcards

1
Q

What does the “Lymphatic System do”?

A

returns fluids that have leaked from the vascular system back to the blood

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2
Q

What does the “Lymphatic System” consist of?

A
  • Lymphatic Vessels
  • Lymph
  • Lymph Nodes
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3
Q

What are some organs and tissues in the Lymphatic system?

A
  • Spleen
  • Thymus
  • Tonsils
    and other tissues scattered through out the body
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4
Q

What is Interstitial Fluid

A

Tissue fluid, that is a solution that bathes and surrounds the tissue cells of multicellular animals/ main component of extracellular fluid

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5
Q

Lymphatic Vessels

A
  • Control networks of drainage vessels that collect excess proteins and return it to the bloodstream (for blood volume regulation)
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6
Q

What is interstitial fluid called once it enters the “lymphatic vessels”?

A

“Lymph”

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7
Q

Transportation of Lymph to the blood stream

A
  • Lymphatic capillaries
  • Collecting Vessels
  • 6 Lymphatic trunks
  • 2 collecting Ducts
  • Subclavian veins
  • Right atrium
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8
Q

3 functions of the lymphatic system

A
  1. Fluid Recovery
  2. Immunity
  3. Lipid absorption
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9
Q

What is Lymph

A

Recovered fluid

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10
Q

Lymphatic vessels

A

Transport the Lymph

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11
Q

Lymphatic tissue

A

composed of aggregates of Lymphocytes and macrophages that populate many organs of the body

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12
Q

Lymphatic organs

A
  • These cells are especially concentrated and which are set off from surrounding organs by connective tissue capsules
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13
Q

What are the Lymphatic Trunks?

A
  1. The jugular
  2. Subclavian
  3. Bronchomediastinal
  4. Intercostal
  5. Intestinal
  6. Lumbar trunks
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14
Q

When fluid pressure is greater (inside) the lymph capillary,

A

it forces valves flaps to shut, preventing lymph from leaking back out.

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15
Q

Lymphatic capillaries called “Lacteals”-

A
  • transport absorbed fat from small intestine to the bloodstream.
  • It’s a milky white lymph that drains through them.
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16
Q

What is “chyle”?

A
  • “fatty lymph” that Drains from the finger like villi of intestinal mucosa
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17
Q

Lymphatics in the skin travel along

A

Superficial veins

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18
Q

Lymphatic vessels of the “trunk” and “digestive viscera” travel deep with

A

arteries

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19
Q

The Largest vessels unite to form

A

Lymphatic Trunks

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20
Q

Right Lymphatic Duct

A
  • Formed by : convergence of the right jugular subclavian and bronchomediastinal trunks
  • Located: Right Thoracic Cavity
  • RECIEVES : Lymphatic drainage from right arm and right side of the thorax and head and EMPTIES into the right subclavian vein
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21
Q

Thoracic Duct

A
  • Larger and Longer
  • Location: Just below the Diaphragm
  • Drains all of the body below the diaphragm and the left upper limb and left side of the head, neck, and thorax.
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22
Q

Lymphoid Tissues

A
  • are aggregations of lymphocytes in the connective tissues of mucous membranes and various organs
23
Q

Diffuse Lymphatic tissue:

A

lymphocytes are scattered, prevalent in body passages that are open to the exterior—the respiratory, digestive, urinary, and reproductive tracts—

24
Q

What is MALT? And where is it found?

A
  • mucosa-associated lymphatic tissue

- the respiratory, digestive, urinary, and reproductive tracts

25
Q

Lymphatic nodules

A

dense masses of lymphocytes and macrophages,

26
Q

Where are Lymphatic Nodules located?

A

lymph nodes, tonsils, and appendix

27
Q

What are Peyer’s Patches? and Where are they located?

A
  • Lymphatic Nodules

- In the ileum, the distal portion of the small intestine

28
Q

What are the Primary Lymphatic organs?

A
  • Red bone marrow

- Thymus

29
Q

Evolution of Red Bone Marrow?

A

RBM to Primary Lymphatic Organ to Maturation of B cells

30
Q

Evolution of Thymus?

A

Thymus to Primary Lymphatic Organ to Maturation of T cells

31
Q

What are the Lymphatic organs?

A
  • RBM
  • Thymus
  • Lymph Nodes
  • Tonsils
  • Spleen
32
Q

Red Bone Marrow

A

-composed of multiple tissues, meeting the criteria of an organ, even if a very soft one

33
Q

2 kinds of RBM

A
  1. Yellow (adipose tissue)

2. Red involve in (hemopoiesis) and (immunity)

34
Q

What systems are the Thymus a Part of ?

A

-endocrine, lymphatic, and immune systems

35
Q

What does the Thymus do ?

A

-Houses developing lymphocytes and secretes hormones that regulate
their later activity
-Bilobed organ located between the sternum and aortic arch in the superior mediastinum

36
Q

What does the Thymus have in the medulla?

A
  • Each lobule has a light central medulla populated by T lymphocytes, surrounded by a cortex
  • Degenerate (involute) with age
37
Q

What are Lymph Nodes Function?

A
  1. To cleanse the lymph

2. To act as a site of T and B cell activation

38
Q

What are Lymph Nodes?

A

-Is an elongated or bean-shaped structure,
with the hilum on one side, enclosed in a fibrous capsule
• The gland consists mainly of a stroma of reticular connective tissue and a parenchyma of lymphocytes and antigen-presenting cells
• Lymph nodes are the only organs that filter lymph as it flows along its course

39
Q

Cervical Lymph Nodes ?

A

lymph from the head and neck

40
Q

Axillary lymph nodes

A

upper limb and breast

41
Q

Thoracic lymph nodes

A

mediastinum, lungs, and airway

42
Q

Abdominal lymph nodes

A

urinary and reproductive systems

43
Q

Intestinal and mesenteric lymph nodes

A

digestive tract

44
Q

Inguinal lymph nodes

A

entire lower limb

45
Q

Popliteal lymph nodes

A

the leg proper

46
Q

What is Lympphadenitis?

A

when a lymph node is under challenge by an antigen, it may become swollen and painful to the touch

47
Q

lymphadenopathy

A

Collective term for all lymphnode diseases

48
Q

Lymph nodes are common sites of

A

metastatic cancer

49
Q

What are Tonsils?

A

patches of lymphatic tissue located at the entrance to the pharynx, where they guard against ingested and inhaled pathogens

50
Q

What are the Tonsils covered by ?

A

epithelium and has deep pits called tonsillar crypts lined by lymphatic nodules

51
Q

What do Tonsils often contain?

A

contain food debris, dead leukocytes, bacteria, and antigenic chemicals

52
Q

The 3 main sets of tonsils

A
  1. pharyngeal tonsil
  2. palatine tonsils
  3. lingual tonsils
53
Q

Pharyngeal Tonsils

A
  • single median, -(adenoids) on the wall of the pharynx just behind the nasal cavity

Anatomy 2 (3 decks)

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