Exam 1 – Lecture 7: Connective Tissue 1

Question 1

What happens in lateral domains?

Answer 1

Cell to cell adhesions/communications

Question 2

What are tight juctions?

Answer 2

Occluding junction

Intercellular barrier

Question 3

What are the 3 portions of tight junctions?

Answer 3

Zonula occludens
Zonula adherens
Macula adherens

Question 4

What portions of the tight junctions are the anchoring junctions?

Answer 4

Zonula adherens

Macula adherens

Question 5

What is the zonula occludence?

Answer 5

The most apical portion of tight junctions which is the barrier for fluid

Question 6

What is the macula adherens portion of tight junctions?

Answer 6

The portion that tightly connects the tight junction

Desmosome

Question 7

What are examples of different cell adhesion molecules?

Answer 7

Cadherins
Integrins
Selectins
Immunoglobulin superfamily

Question 8

What are cell adhesion molecules?

Answer 8

Markers on the surface of the cells

Question 9

What do selectins do?

Answer 9

Help cells migrate from tissue and identify different things

Question 10

What do gap junctions do?

Answer 10

Help cell communicate

Question 11

What is a type of gap junction?

Answer 11

Nexus

Question 12

What is the basal domain?

Answer 12

Attachment to basement membrane

Question 13

What happens in the basal domain?

Answer 13

Cell-matrix interaction

Question 14

What is the basal lamina made of?

Answer 14

Collagens
Laminin
Proteoglycans

Question 15

What does a hemidesmosome do?

Answer 15

Helps with attachment to the underlying basement membrane

Question 16

What are the 2 types of glands?

Answer 16

Endocrine and exocrine

Question 17

What do endocrine glands do?

Answer 17

Release products directly into the blood stream

Question 18

What do exocrine glands do?

Answer 18

Release their product into some other lumen/space

Question 19

What do glands secrete?

Answer 19

Merocrine
Apocrine
Holocrine

Question 20

What is merocrine?

Answer 20

Membrane bound vesicles

Question 21

Where is aprocine?

Answer 21

Apical with cytoplasm

Question 22

What do holocrines do?

Answer 22

Apoptosis, whole cell

Question 23

What are glands lined with?

Answer 23

Epithelium

Question 24

What are glands characterized by?

Answer 24

If they are mucous or serous

Question 25

What do mucous glands release?

Answer 25

A lot of proteoglycans

Question 26

What do serous glands release?

Answer 26

Primarily water

Question 27

What is connective tissue named for?

Answer 27

Matrix

Question 28

What are 3 examples of types of connective tissue?

Answer 28

Fibrous Cartilage Bone

Question 29

What are the different fiber types that make up connective tissue?

Answer 29

Collagen Reticular Elastic

Question 30

What is the most abundant protein in a mammal's body?

Answer 30

Collagen

Question 31

What is collagen made of?

Answer 31

Fibrils

Question 32

What is the structure of collagen?

Answer 32

Triple helix

Question 33

What are the polymers of collagen?

Answer 33

``` Fibrillar Fibril associated Hexagonal network Transmembrane Multiplexins ```

Question 34

What is collagen made by?

Answer 34

Fibroblasts

Question 35

What is collagen used for?

Answer 35

To give strength to a tissue