Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MHIS 1513 > Session 9: Connective tissue > Flashcards

Session 9: Connective tissue Flashcards

1
Q

What are the 3 characteristics of collagen fibers?

A
  1. Flexible
  2. Strong
  3. Bundles of thread-like subunits
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is an aberration that can develop due to insufficient collagen synthesis?

A

Scurvy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 5 types of soft CT?

A
  1. Aerolar
  2. Adipose
  3. Mesenchymal
  4. Reticular
  5. Gelatinous
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 2 populations/types of CT cells?

A
  1. CT immigrated (wandering/transient) cells

2. CT associated (resident/fixed) cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Name the 5 CT associated cell types/resident cell population types.

A
  1. Macrophages
  2. Mast cells
  3. Adipose (fat)
  4. Fibroblasts
  5. Stem cells
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name the 4 types of CT immigrating cells/wandering cell population.

A
  1. Plasma cells
  2. Lymphocytes
  3. Granulocytes
    • nuetrophils
    • basophils
    • eusinophils
  4. Monocytes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the 3 types of CT according to development?

A
  1. Embryonic CT
  2. CT proper
  3. Specialized CT
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the 2 types of embryonic CT?

A
  1. Mesenchyme

2. Mucous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the function of fibroblasts?

A

Formation of fibers and amorphous ground substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the 4 functions of macrophages?

A
  1. Phagocytic cells
  2. Secretory functions
  3. Immune response
  4. Formation of foreign body giants by
    fusion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the 2 functions of adipose tissue?

A
  1. Source of energy

2. Insulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is adipose surrounded by?

A

Thin cytoplasm layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 2 functions of mast cells?

A
  1. Divide mitotically

2. Secretory granules secrete heparin and histamine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the functions of heparin and histamine respectively?

A

Heparin- anti-coagulant

Histamine- causes vasodilation w/ increase in small vessels permeability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the function of the plasma cells?

A

Produce antibodies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the function of lymphocytes?

A

Immunological function

17
Q

What is the function of granulocytes?

A

Have white blood cells w/ basilophils, eusinophils and neutrophils

18
Q

What are the 3 types of extracellular fibers?

A
  1. Elastic
  2. Collagen
  3. Reticular
19
Q

Describe the 7 steps of protein synthesis.

A 
1. mRNA is produced for every alpha chain 
   @ the nucleus
2. Course ER synthesizes alpha chains 
3. Trans vesicles carry procollagen 
    molecules Golgi Apparatus
4. Procollagen molecules are packed into 
    secretory vesicles in the GA
5. Microtubuli and microfilaments convey 
    secretory vesicles to the surface 
6. Procollagen molecules are released 
    into the extracellular space 
7. Procollagen is transformed into 
    insoluble collagen
20
Q

Compare white and brown adipose (fat)

A

WHITE

  • uniocular
  • lipids stored in 1 large drop
  • cytoplasm arranged in thin ring around periphery
  • flattened nucleus at periphery
  • range from white => dark yellow
  • less and smaller mitochondria in cytoplasm
  • richly vascularized
  • almost all organs, except for eyelids, penis, scrotum, external ear
  • E source
  • Shock absorber
                                    VS

BROWN

  • multiocular
  • lipids stored in numerous vesicles
  • lots of eosinophilic cytoplasm
  • large accentric nucleus
  • brown due to blood capillaries & mitochondria
  • more & larger mitochondria
  • more blood capillaries
  • mainly in embryo & newborn; abundant in hibernating animals
  • produce heat
21
Q

How do mast cells cause an allergy?

A
  • They release vasoactive and immuno-active substances at the mast cell surface after antigen-antibody interaction
  • These substances may cause immediate hypersensitivity reactions, allergy and anaphylaxis.
22
Q

What is the function of a pericyte?

A

Can differentiate into smooth muscle cells, osteoblasts, fibroblasts, adipocytes and endothelium.

23
Q

Name the 5 substances released by basophil during an allergic reaction.

A
  1. Histamine
  2. Heparin
  3. NCF (neutrophil chemotactic factor)
  4. ECF (eosinophil chemotactic factor)
  5. Peroxidase
24
Q

Describe the development of scurvy.

A
  • Lack of certain nutritional factors
  • Lack of Vitamin C results in scurvy
  • Vitamin C is a co-factor for proline-
    hydroxylase , which is essential for
    normal collagen synthesis
  • Absence of Vitamin C: fibroblasts
    synthesize defective collagen
  • General degradation of connective
    tissue
  • Periodontal ligament that holds teeth in
    place degrades and teeth are lost
25
Q

What types of cells produce collagen?

A

Fibroblasts

26
Q

Name the 4 types of cells that produce reticular fibers.

A
  1. Fibroblasts
  2. Reticular cells
  3. Schwann cells
  4. Smooth muscle cells
27
Q

Name the 2 types of cells that produce elastic fibers.

A
  1. Fibroblasts

2. Smooth muscle cells

28
Q

Name the 2 types of connective tissue populations/cell groups.

A
  1. Resident cell population (associated cells)

2. Wandering/transient cell population (immigrating cells)

29
Q

Name the 3 types of diseases caused by mast cells.

A
  1. Immediate hypersensitivity reactions
  2. Allergy
  3. Anaphylaxis
30
Q

What is the function of pericytes?

A

Can differentiate into smooth muscle cells, osteoblasts, adipocytes, fibroblasts, and endothelium.

31
Q

Name 9 substances released by mast cells.

A
  1. Histamine
  2. Heparin
  3. ECF
  4. NCF
  5. Leukotrienes
  6. Serine proteases
  7. Interleukines
  8. Tumor necrosis factor
  9. Prostaglandin D

MHIS 1513 (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions