Brainscape's Knowledge GenomeTM

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


See full index

Year 1 Cell Biology > Connective tissue > Flashcards

Connective tissue Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What are the embryological derivations of connective tissue?

A
  1. Mesoderm2. Ectoderm (neural crest)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which CT cell possesses the cellular machinery for the synthesis and secretion of fibers and ground substance?

A

Fibroblast (active)

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

Do active fibroblasts typically divide?

A

No

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

Under which circumstances would an active fibroblast divide?

A

Wound healing (fibroplasia)

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

Which is another term for a quiescent fibroblast?

A

Fibrocyte

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is another term for a fibrocyte?

A

Quiescent fibroblast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are some characteristics of a fibrocyte compared to a fibroblast?

A
  1. Smaller2. Spindle-shaped3. Fewer processes4. Eosinophilic cytoplasm5. Elongated and heterochromatic nucleus6. Nucleoli not visible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is a myofibroblast?

A

Cell that possesses characteristics of fibroblasts and smooth muscle cell

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

Where are myofibroblasts commonly found?

A

Sites of wound healing

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

What is a Dupuytren’s contracture?

A

Ischemic damage to palmar aponeurosis, fibroblasts and myofibroblasts replace Type I collagen with Type III. Contracture at MP joints due to excess deposition of Type III collagen crosslinking with myofibroblasts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Which digits are most commonly affected in a Dupuytren’s conracture?

A

4th and 5th digits

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

Unilocular adipocytes are associated with what type of adipose tissue?

A

White adipose tissue

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

Which type of adipocyte has a signet ring appearance?

A

Unilocular adipocytes

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

What hormone is secreted by adipocytes to decrease appetite?

A

Leptin

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

What is the function of leptin?

A

Appetite suppression

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

What type of cell secretes leptin?

A

Adipocyte

17
Q

What is lipodystrophy?

A

Loss of body fat

18
Q

What is the term for loss of body fat?

A

Lipodystrophy

19
Q

Which type of adipocyte contains a single large droplet not bound by a membrane by ensheated by vimentin fibers?

A

Unilocular adipocyte

20
Q

Are multilocular adipocytes smaller or larger than unilocular adipocytes?

A

Smaller

21
Q

Multilocular adipocytes have an abundance of what type of organelle?

A

Mitochondria

22
Q

Is the nucleus displaced in multilocular adipocytes?

A

No

23
Q

Is a mast cell a fixed or migratory CT cell?

A

Fixed

24
Q

From where are mast cells derived?

A

Bone marrow

25
Q

Where are mast cells usually located?

A

CT proper, adjacent to blood vessels and subepithelial layers of respiratory and GI tracts

26
Q

Are mast cells found in nervous tissue?

A

No

27
Q

Is a macrophage a fixed or migratory CT cell?

A

Fixed

28
Q

What are the cytological characteristics of a macrophage?

A
  1. Oval nucleus2. Clumps of heterochromatin along nuclear envelope3. Typically indented4. Eccentrically positioned in cytoplasm
29
Q

Which organelles are abundant in macrophages?

A
  1. Golgi2. rER3. Lysosomes
30
Q

What are two functions of macrophages?

A
  1. Phagocytose cellular debris2. Antigen presentation (to lymphocytes)
31
Q

From what cell lineage are plasma cells?

A

B cells

32
Q

What are the cytological attributes of plasma cells?

A
  1. Large, ovoid2. Eccentrically located nucleus3. Clock face nucleus (heterochromatin dispersed around it)4. Very basophilic (a lot of rER)5. Prominent negative Golgi at light level
33
Q

Which cell type has a clockface nucleus?

A

Plasma cell

34
Q

Are antibodies secreted in a constitutive or regulated way by plasma cells?

A

Constiutive

35
Q

In the ‘first wave’ of leukocyte infiltration, what cell type is most abundant?

A

Neutrophils

36
Q

In the ‘second wave’ of leukocyte infiltration, what cell type is most abundant?

A

Monocytes

Year 1 Cell Biology (40 decks)

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