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HISTOLOGY > MODULE 3 : LYMPHATICS > Flashcards

MODULE 3 : LYMPHATICS Flashcards

0
Q

Materials that are carried in the lymph include what.

A

WATER
BLOOD CELLS
PROTEINS

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1
Q

Functions to transport fluid back to the blood and play an essential role in body defense and resistance to disease

A

LYMPHATIC SYSTEM

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2
Q

Harmful materials that enter the lymph vessels include.

A

BACTERIA
VIRUSES
CANCER CELLS
CELL DEBRIS

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3
Q

Components of the so called “immune system”, which are spread in most important parts of the body.

A

LYMPHATIC TISSUE

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4
Q

Characterized by few and irregularly scattered lymphocytes in a loose manner

A

LOOSE LYMPHATIC TISSUE
(Found in :
- LP of upper respiratory and upper alimentary tracts
- internodular and deep cortical &. Edullary sheath of spleen
- internodular regions of the tonils and Peyer’s Patches)

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5
Q

Characterized by lymphocytes that are abundant an closely packed together

A

DENSE LYMPHATIC TISSUE
(Found in :
- LP of lower respiratory and digestive tracts)

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6
Q

Characterized as a compact, circumscribed aggregation of lymphocytes forming follicles or nodules

A

NODULAR LYMPHATIC TISSUE (e.i. Appendix)

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7
Q

A type of Lymphatic Nodule that is widely distributed in the LP of digestive, respiratory and urinary tractsq

A

SOLITARY LYMPHATIC NODULES

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8
Q

A type of Lymphatic Nodule that is found in the walls of the ileum (called Peyer’s Patches) and in the vermiform appendix

A

AGGREGATES OF LYMPHATIC NODULES

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9
Q

Is a central pale staining part of a lymphatic nodule

A

GERMINAL CENTER OF FLEMING (Secondary Nodules)

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10
Q

Site of active production of lymphocytes

A

SECONDARY NODULES

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11
Q

Trap antigen in the presence of antibody to retain antigen-antibody complex

A

SECONDARY NODULE

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12
Q

Peripheral dark staining portion of lymphatic nodules

A

CORONA

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13
Q

Median organ situated in the superior mediastinum, anterior to the great vessels of the heart. Consists of two lobes, arising in the embryo as separate primordia on each side of the midline

A

THYMUS GLAND

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14
Q

A type of lymphatic tissue which After puberty, it undergoes a rapid progressive involution until the organ is largely replaced by adipose tissue in the adult

A

LYMPHATIC TISSUE

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15
Q

The only primary lymphatic organ. It is the first organ to become lymphoid during embryonic life

A

THYMUS GLAND

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16
Q

Thymus Gland is covered by what type of capsule

A

CAPSULE OF LOOSE CONNECTIVE TISSUE

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17
Q

Embryonic origin of thymus gland

A

ENDODERMAL ORIGIN

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18
Q

Part of the parenchyma of Thymus Gland which is the Peripheral zone of dense lymphatic tissue consisting of T lymphocytes

A

THYMIC CORTEX

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19
Q

Part of the parenchyma of thymus gland which is composed of slightly staining central zone of loose lymphatic tissue

A

THYMIC MEDULLA

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20
Q

Spherical or oval bodies composed of concentrically arranged cells of epithelial reticular cells with an acidophilic central area

A

THYMIC CORPUSCLES or HASSL’S BODIES

21
Q

Encapsulated spheroid or kidney-shaped organs along the course of lymphatic vessels

A

LYMPH NODES

22
Q

Part of lymph node that enter the node at its convex surface. Provided with valves that open towards the node

A

AFFERENT LYMPHATIC VESSELS

23
Q

Part of the lymph node which leave the node at the hilus and has valves that point away from the hilus

A

EFFERENT VESSELS

24
Q

Type of capsule surrounding lymph nodes

A

DCT

25
Q

Trace the Lymphatic Pathway and Sinuses

A

Afferent lymphatic vessels  enter the lymph
node  subcapsular sinus  cortical sinus 
medullary sinus  efferent lymphatic vessels
 leave the lymph node

26
Q

The lymphatic sinus are not merely spaces but are lined by what structures?

A

LITTORAL CELLS

27
Q

Type of immunological defense that is the property of B lymphocytes and plasma cells

A

HUMORAL IMMUNE RESPONSE

28
Q

A type of immunological defense that is T lymphocyte differentiation and activation lead to the development and systemic dessimination of lymphokine producing and cytolytic lymphocytes

A

CELLULAR IMMUNE RESPONSE

29
Q

Largest lymphoid organ in the body

A

SPLEEN

30
Q

Has no afferent lymphatic vessels and no lymph sinuses

A

SPLEEN

31
Q

Type of capsule surrounding the spleen

A

FIBROMUSCULAR CAPSULE (dense connective tissue with smooth muscle)

32
Q

PALS consists of what type of cells?

A

T LYMPHOCYTES

33
Q

Site where blood–borne cells and particulate matter first contact the splenic parenchyma

A

TRANSITIONAL ZONE

34
Q

Arteries of the spleen when it enters in the red pulp, they become what structures? Characterized by having a tall endothelium resting on a basal lamina, but lacking an elastic interna

A

PENICILLIARY ARTERIES (or arteries of the red pulp)

35
Q

a characteristic thickening of walls of each penicillary artery when it branches upon entering the red pulp

A

ELLIPSOIDAL or SCHWEIGGER-SEIDEL SHEATH

36
Q

A theory of capillary circulation where Capillaries open directly into the spaces among the reticular cells of the splenic cords

A

OPEN CIRCULATION THEORY

37
Q

A theory of splenic circulation wherein Capillaries communicate directly with the lumen of the venous sinuses

A

CLOSED CIRCULATION THEORY

38
Q

A theory of splenic circulation where both types of circulation are present at the same time

A

COMPRISE THEORY

39
Q

Paired oval shaped bodies located in the oropharynx between the glossopalatine and pharyngopalaltine arches

A

PALATINE TONSILS

40
Q

L.E. of palatine tonsils

A

SSNKE

41
Q

Triggered when body tissues are injured

A

INFLAMMATORY RESPONSE (second line defense)

42
Q

Four cardinal signs of inflammation

A

REDNESS
HEAT
SWELLING
PAIN

43
Q

A characteristic of the immune system (third line of defense) which recognizes and acts against particular foreign substances

A

ANTIGEN SPECIFIC

44
Q

A characteristic of the immune system (third line of defense) wherein it is not restricted to the initial infection site

A

SYSTEMIC

45
Q

A characteristic of the immune system (third line of defense) which recognizes and mounts a stronger attack on previously encountered pathogens

A

MEMORY

46
Q

Type of immunity which is an Antibody-mediated immunity and Cells produce chemicals for defense

A

HUMORAL IMMUNITY

47
Q

Type of immunity which is Cell-mediated immunity and Cells target virus infected cells

A

CELLULAR IMMUNITY

48
Q

Any substance capable of exciting the immune system and provoking an immune response

A

ANTIGENS

49
Q

Occurs when Antibodies are obtained from someone else. An example of which is when it is Conferred naturally from a mother to her fetus

A

PASSIVE IMMUNITY

HISTOLOGY (7 decks)

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