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Anatomy Chapter 21 > Chapter-21 Lymphatic System > Flashcards

Chapter-21 Lymphatic System Flashcards

1
Q

Lymphatic System

A

Lymph Vesssels
Lymphatic Tissue
Organs

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2
Q

Lymph

A

Inside lymph vessels, the interstitial fluid

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3
Q

Lymphatic Capillaries

A

Smallest lymph vessels
Absorb interstitial fluid
Areolar CT

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4
Q

Anchoring Filaments

A

Help hold endothelial cells to nearby structures

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5
Q

Lacteals

A

Lymphatic capillaries located within the GI tract

Absorb lipid-soluble substance from the GI tract

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6
Q

Lymphatic Vessels

A

Contain 3 vessel tunicas,
Have valves in their lumen
After lymphatic capillaries —> are lymph vessels

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7
Q

Lymphatic trunks?

How many trunks? Names?

A

Lymphatic vessels feed into.
5 trunks
Jugular, Subclavian, Bronchomediastinal, Intestinal, Lumbar,

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8
Q

Lymphatic Ducts?
How many?
Names?

A

Drain into venous blood
2
Right Lymphatic duct
Thoracic Duct

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9
Q

Right Lymphatic Duct

A

Near right clavicle
Receives lymph from; R-Side of head and neck,
R-upper limb
R-side of thorax

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10
Q

Thoracic Duct

A 
Larges
Drains: Left side of head and neck
Left upper limb
Abdomen
Lower Limbs
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11
Q

Cisterna Chyli

A

Inferior to L2 vetebra
Recives lymph from vessels that drain small intestine of GI tract
R and L intestinal and lumbar trunks

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12
Q

Primary lymphatic structures

A

Formation and maturation of lymphocytes
Red Bone Marrow
Thymus

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13
Q

Secondary Lymphatic Structures

A

House lymphocytes and other immune cells

  • Lymph nodes
  • Spleen
  • Tonsils
  • Lymphatic Nodules
  • MALT
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14
Q

Thymus

A

Bilobed organ, located in the superior mediastinum and functions in T-lymphocytes maturation

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15
Q

Thymic Lobes

A

Surrounded by connective tissue capsule

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16
Q

Trabeculae

A

Fibrous extensions of the capsule, which subdivides the thymic lobes into lobules

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17
Q

Capsule composed

A

Dense Irregular Connective tissue, encloses the lymphatic structures

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18
Q

Lymph nodes?

Contain?

A

Filter lymph and remove unwanted substance, encapsulated

  • Cortex (lymphatic nodules, cortical sinus, germinal center, mantle zone)
  • Medulla (Medullary cords, medullary sinus)
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19
Q

Afferent lymphatic vessels

A

Bring lymph into lymph node

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20
Q

Efferent Lymphatic vessels

A

Originates in the hilum, lymph is drained

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21
Q

Trabeculae

A

subdivide the capsule into compartments

22
Q

Cortex

A

Composed of multiple lymphatic nodules

23
Q

Lymphatic Nodules

A

Composed of reticular fibers that support an inner germinal center

24
Q

Germinal Center

A

Houses both poliferating B-lymphocytes and macropphages

25
Q

Mantle Zone

A

Surrounds germinal center,

Contains T-lymphocytes, macrophages, and dendritic cells

26
Q

Medullary Cords

A

Has strands of B-lymphocytes, T-lymphocytes, and macrophages supported by connective tissue fibers called medullary cords

27
Q

Cortical Sinus

Medullary Sinus

A

Open channels, lined with macrophages

28
Q

Spleen

A

Largest lymphatic organ in the human body
Filters blood, not lymph
lacks cortex and medulla

29
Q

Hilum (Spleen)

A

Blood vessels and nerves leave the spleen

30
Q

Splenic Vein

A

Blood is drained

31
Q

Splenic Artery

A

Delivers blood to the spleen

32
Q

White Pulp (Spleen)

A

Consist of spherical clusters of T-lymphocytes, B-lymphocytes, and macrophages

33
Q

Central Artery (spleen)

A

with in white pulp

34
Q

Red Pulp (Spleen)

A

Consist of erythrocytes, platelets, macrophages, and B-lymphocytes

35
Q

Splenic cords

A

Cell in red pulp are house in reticular connective tissue

36
Q

Splenic sinusoids

A

associate with red pulp, drain into small venules that lead into splenic vein

37
Q

Tonsils

A

secondary lymphatic structures not surrounded by connective tissue capsule, found on pharynx(throat)
Help protect against foreign substance that may be inhaled or ingested

38
Q

Pharyngeal Tonsil

A

Found posterior wall of the nasopharynx

39
Q

Adenoids

A

Pharyngeal tonsil becomes enlarged

40
Q

Palatine Tonsils

A

posterolateral region of oral cavity

41
Q

Lingual Tonsils

A

Posterior one third of the tongue

42
Q

Lymphatic Nodules

A

small oval clusters of lymphatic cells, not surrounded by a connective tissue capsule
Found every organ and within wall of appendix

43
Q

MALT
Mucosa-associated lymphatic tissue
Found?

A

many lymphatic nodules grouped together

Found: GI tract, respiratory tract, genital tract, urinary tract,

44
Q

Peyer Patches

A

collection of lymphatic nodules, can become large and bulge into the gut

45
Q

Acute tonsillitis

A

Tonsils inflamed and infected.
Palatine tonsils are most common
can be infected by viruses and adenoviruses or bacteria Streptoccoccus

46
Q

Splenectomy

A

Surgical removal of the spleen.
Caused: sever splenic infection, cyst or tumor s within he spleen
-Rupture of spleen from abdominal injury, Hodgkins lymphoma, cancer

47
Q

Lymphoma

A

Malignant neoplasm that develops from lymphatic structures.
Present non tender, enlarged lymph node, often neck or axillary region.
Or symptoms; night sweats, fever, weight loss

48
Q

Hodgkin lymphoma

A

Characterized by Reed-Sternberg cell, nuclei resembles owls eyes. Affects ages16-35 and people over 60.

49
Q

Non-Hodgkin Lymphomas

A

More common than Hodgkin lymphomas.

Develop from B-lymphocytes, less commonly from T-lymphocytes.

50
Q

Lymphedema

A

accumulation of interstitial fluid that occurs due to interference with lymphatic drainage in a part of the body. Interstitial fluid accumulates and the affected area swells and becomes painful

51
Q

Metastasis

A

Cancerous cells can break fee from primary tumor and trasported to the lymph. Wandering cells may establish secondary tumors that develop in other locations within the body = metastasis

Anatomy Chapter 21 (2 decks)

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