Connective and Adipose Tissue

Question 1

All Connective Tissue has what two components:

Answer 1

1. ECM
2. Ground Substance

Question 2

There are two classes of cells that make up connective tissue - they are:

Answer 2

1. Permament residents
2. Temporary residents

Question 3

Permanent residents are cells in CT that:

Answer 3

Differentiate within that tissue and live whole life in that tissue

Question 4

Temporary residents are cells in CT that ____________. A big example of these cells are _________-

Answer 4

1. Come in and out as needed
2. WBC’s and their derivatives

Question 5

Connective tissue has what ratio of ECM:Cells?

Answer 5

ECM»»cells

Question 6

Within the ECM, what is the fiber:ground substance ratio?

Answer 6

Fibers»>ground substance

Question 7

Is CT an avascular tissue or a vascular tissue?

Answer 7

Vascular!

Question 8

What are the 3 most common fibers in CT?

Answer 8

1. Collagen I
2. Elastic
3. Collagen III - Reticular

Question 9

Collagen I fibers impart flexibility to mineralized ECM and thus, prevent bone from __________________

Answer 9

Being too brittle

Question 10

Blood vessel walls have structures that are similar to elastic fibers called:

Answer 10

Elastic Laminae

Question 11

Reticular fibers are found in tissues/organs/glands that are (texture) ____________ and have no ____________ and provide (function) ___________

Answer 11

1. Soft/solid
2. Lumen
3. Internal 3D support

Question 12

Some CT have specialized fibers such as blood which contains ______________

Answer 12

Fibrin

Question 13

Some CT have specialized fibers such as hyaline and elastic cartilage which contain:

Answer 13

Collagen II

Question 14

Some CT have specialized fibers such as ________ and ________ which contain Collagen II fibers

Answer 14

1. Hyaline
2. Elastic

Question 15

Ground substance is a component of the ________ and functions in what 3 functions?

Answer 15

1. Lubrication
2. Resist compression (think joints)
3. Physical support

Question 16

The number of cells in permanent resident/fixed cells is ____________

Answer 16

Stable/does not really fluctuate

Question 17

Embryonic connective tissue is called:

Answer 17

Mesenchyme

Question 18

The two cell types that develop elsewhere but are still considered permanent resident/resident/fixed cells are:

Answer 18

1. Mast cells
2. Macrophages

Question 19

The two big examples of permanent resident/resident/fixed cells are:

Answer 19

1. Fibroblasts
2. Adipocytes

Question 20

Transient cells originate in the ________ and spend time circulating in blood

Answer 20

Bone marrow

Question 21

When a CT needs transient cells, that CT will ________________, the cells will do their job and then ____ or _______

Answer 21

1. Send a signal/recruit them
2. Die
3. Leave

Question 22

The population size of transient cells ____________

Answer 22

Fluctuates

Changes depending on damage or illness that tissue is exposed to

Question 23

Transient cells are typically what two cell types?

Answer 23

1. Plasma cells
2. Leukocytes - WBC’s

most CT are WBC’s

Question 24

Mesenchymal cells are relatively undifferentiated, making them what kind of cells?

Answer 24

Pluripotent stem cells

Question 25

Mesenchymal cells give rise and differentiate into ____________ CT cells that make components of the _____________

Answer 25

1. Resident 2. ECM - Fibers and ground substance

Question 26

In bone marrow, ____________ stem cells give rise to most blood cells which makes them permanent or transient cells of CT?

Answer 26

1. Hematopoietic 2. Transient

Question 27

Most CT arises from either ________ or ________ which are both from what embryonic layer?

Answer 27

1. Bone marrow 2. Mesenchyme 3. Mesoderm