Histology Flashcards

1
Q

What is the composition of the extra cellular matrix?

A

Protein fibers- collagen, reticular and elastic

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2
Q

What does epithelial tissue do?

A

Forms boundaries, protects, secretes, absorbs, filters

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3
Q

What is the difference bettween cutaneous, mucous and serous membranes?

A

Cutaneous= skin
Mucous=lines hollow organs that open onto body surface
Serous=lines closed cavities

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4
Q

Function of stratified squamous epithelium?

A

Protects underlying tissue

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5
Q

Where are simple squamous epithelium found?

A

Kidney glomeruli, alveoli, lining of heart

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6
Q

What is transitional epithelium?

A

Dome like surface cells which stretch readily and permits distension of urinary organs

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7
Q

Functions of connective tissue

A

Structure
Protection
Storage
Transportation
Defence

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8
Q

What is ehlers danlos syndrome

A

Due to abnormal collagen gene
Causes hypermobile joints and hyperelastic skin

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9
Q

How would u describe the structure of hyaline cartilage?

A

It has a firm matrix

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10
Q

Where would you find fibrocartilage

A

Invertebral discs, public symphysis

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11
Q

What does elastic cartilage allow for?

A

Flexibility

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12
Q

Striated vs non striated

Skeletal muscle tissue?
Smooth muscle tissue?
Cardiac muscle tissue?

A

Skeletal=striated
Smooth=non striated
Cardiac=striated

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13
Q

What is the function of smooth muscle? Is this a voluntary or involuntary action?

A

It propels objects or substances under involuntary control

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14
Q

Difference between unipotent and pluripotent stem cells?

A

Unipotent=can give rise to only one cell type
Pluripotent=can give rise to several cell types

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15
Q

Example of a pluripotent stem cell

A

Blood stem cell

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16
Q

Examples of non renewable cells(2)

A

Heart muscle, nerve cells

17
Q

What are desmosomes?

A

Desmosomes are a junction between the plasma membranes of cells that seal the junction and allow no movement

18
Q

Describe the structure of cardiac muscle?

A

Striated, branching, uninucleated cells

19
Q

What shaped cells does smooth muscle have?

A

Spindle shaped cells

20
Q

Function of hyaline cartilage

A

Supports and reinforces

21
Q

What is fluid connective tissue made up of

A

Blood and lymph

22
Q

Functions of surface epithelial tissue?

A

Protection
Secretion ie pancreas
Absorption ie SI
Control of permeability ie nephrons in kidneys

23
Q

What cells are general connective tissue made out of

A

Fibroblasts and adipocytes

24
Q

What is the extracellular matrix of general connective tissue made of?

A

Fibres and ground substance

25
Q

What produces the matrix in hyaline cartilage?

A

Chondroblasts