Chapter 1 (page 7) Flashcards

1
Q

Type of loose connective tissue called:___________. It dominates all the lymph organs except the __________.

A

Reticular connective tissue

Thymus

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2
Q

What are the two types of lymphoid tissue?

A

Diffuse lymphatic

Lymphatic follicles

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3
Q

Where Diffuse lymphatic tissue can be found?

A

found in almost every body organ. Largely collects in lamina propria of mucous membranes and within lymphoid organs.

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4
Q

___________ - solid, spherical bodies consisting of tightly packed cells.

A

Lymphatic follicles

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5
Q

Where lymphatic follicles can be found?

A

They are found in larger lymphoid organs such as lymph nodes.

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6
Q

Isolated lymphatic follicles occur in the intestine wall as _________ and in the appendix.

A

Peyer’s patches

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7
Q

Consist of the lymph nodes, spleen, thymus, tonsils, and patches of intestine. All composed of reticular connective tissue and helps to protect the body is called:

A

Lymphoid Organs

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8
Q

As lymph is transported back to the bloodstream it is filtered through __________ that cluster along lymph vessels. throughout the body.

A

lymph nodes

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9
Q

What is the shape and size of a lymph nodes?

A

Bean shaped and less than 2.5 cm in length (can vary in size)

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10
Q

They are found in places where the lymph vessels converge to form large trunks such as the inguinal, axillary and cervical regions.

A

lymph nodes

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11
Q

What are the two functions of lymph nodes?

A

Act as lymph filters.

They help activate the immune system.

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12
Q

How lymph nodes acts as lymph filters?

A

Macrophages in nodes remove and destroy micro-organisms that have entered the lymph effectively preventing them from being delivered to the blood
and spreading further in the body.

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13
Q

Lymph nodes help activate the immune system by _________ the lymph stream for presents of antigens and mount an _________ against them.

A

monitoring

attack

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14
Q

A dense fibrous capsule from which connective tissue strands called:__________ extend inward to divide the node into a number of compartments surround each node.

A

trabeculae

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15
Q

Two regions of a node:

A

Cortex

Medullary cords

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16
Q

It contains densely packed follicles (collections of lymphocytes).

A

Cortex

17
Q

__________ - thin inward extensions of cortex (contains phagocytic macrophages).

A

Medullary cords

18
Q

Throughout the node are ____________ . Lymph enters convex side of node through __________________ . It moves through large bag-like sinuses. Then it enters smaller sinuses and into the ___________ .Lymph exits through ____________________________.

A

lymph sinuses
afferent lymphatic vessels
medulla
Hilus via efferent lymphatic vessels

19
Q

Is it TRUE that, there are less afferent vessels then efferent vessels therefore flow of lymph is slow which allows time for the lymphocytes and macrophages to perform their functions.

A

False

20
Q

When nodes become overwhelmed with bacteria they become inflamed and tender. They can also become secondary cancer sites. True or False?

A

True