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Flashcards in Tissues 1 Deck (25)
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1
Q

What 5 things are we made of?

A
Cells
Extracellular Matrix
Tissue fluids
Tissue
Organs
2
Q

What are the 4 tissue types?

A

Epithelia
Connective
Nerve
Muscle

3
Q

What are the features of epithelia tissue?

A
Covers surfaces
Keeps cells connected
Separates compartments
Forms glands
Good adaptive powers
Good regenerative powers
4
Q

Define a desmosome (adhering junction).

A

Stick cells together and help keep the structure of the epithelia intact.

5
Q

Define a tight junction (occulting junction).

A

Seal intercellular spaces and are waterproof so no space for water or other solutes.

6
Q

Define a gap junction (communication junction).

A

For cell to cell communication.

Look like tight junctions but have a rosette of proteins called connectents which allows ions to travel through the cell.

7
Q

Where does the epithelial sit?

A

On the connective tissue basement membrane.

8
Q

What does BL and RL stand for?

A

Basal lamina and reticular lamina.

9
Q

What is cilia?

A

Finger like projection from apical surface. Movement of mucas.

10
Q

Where is the apical surface?

A

Opposite the basal lamina.

11
Q

What is the tubulin skeleton arrangement?

A

9+2 arrangement of tubulin doublets.

12
Q

What is microvilli?

A

Increased surface area of cell, are smaller than cilia and thinner. Supported by microfilaments and used for absorption.

13
Q

What are the 3 types of simple epithelia?

A

Simple squamous
Simple cuboidal
Simple columnar

14
Q

What are the 3 types of stratified epithelia?

A

Stratified squamous
Stratified cuboidal
Stratified columnar

15
Q

What is the odd type of epithelia?

A

Pseudostratified

16
Q

What type of epithelia is the saliva gland made of?

A

Stratified columnar.

17
Q

Where is transitional stratified epithelia found?

A

Urinary bladder and uretha.

18
Q

Define hemidesmosomes.

A

Link one cell to the extracellular matrix.

19
Q

Define glands.

A

Collections of secretory epithelial cells and can be single or multicellular.

20
Q

What are the features of connective tissue?

A

Connects
Structure/function defined by extracellular matrix
Liquid to solid matrix

21
Q

What defines the tissues?

A

Extracellular matrix proteins.

22
Q

Name 3 things made from connective tissue.

A

Blood (filled with alubins)
Bone
Adipose (mainly fat)

23
Q

What are the features of muscle tissues?

A

Cytoplasm is packed with contractile apparatus
Long, thin cells
Shorten lengths, close down spaces

24
Q

What are muscle tissues stuffed with?

A

Myosin, actin and mitochondria.

25
Q

What are the features of nervous tissue?

A
Communication
Nervous and support cells
Receives, generates and transmits electrical signals
Allows emotions
Integrates information