Brainscape's Knowledge GenomeTM

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


See full index

Test 2 FTM > DLA 22 + lecture 28 > Flashcards

DLA 22 + lecture 28 Flashcards

1
Q

What are the permanent residents of the connective tissue?

A
  1. fibroblasts
  2. adipose tissue
  3. macrophages / monocytes
  4. mast cells
  5. mesenchymal stem cells
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the transient cell population of the CT?

A
  1. lymphocytes
  2. plasma cells
  3. eosinophils
  4. basophils
  5. neutrophils
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

explain fibroblasts?

A

they are the most common cell in connective tissue

synthesize fibers and ground substance

spindle-shaped

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

What are myofibroblasts?

A

wound healing

presence of contractile filaments

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

explain adipocytes?

A

signet ring cell

large fat inclusion

rich blood supply

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

What is an unilocular adipocyte?

A

One large fat droplet- white fat

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

What is an Multilocular Adipocyte?

A

considered brown fat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is multilocular adipocytes characterized by?

A
  1. many lipid droplets
  2. central nucleus
  3. rich in mito
  4. highly vascular
  5. rich in innervation
  6. lipochrome pigments
  7. heat production
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where is brown fat found?

A

body neck and abdomen of neonates

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

What are macrophages derived from?

A

monocytes

they migrate to CT to differentiate

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

Macrophages in CT?

A

liver - Kupffer cells

brain - microglia

bone - osteoclasts

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

properties of macrophages?

A
  1. irregular cell membrane
  2. have pseudopodia
  3. phagocytic; produce cytokines
  4. antigen presenting cells
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Explain mast cells?

A

they originate in the bone marrow from precursor cells

they proliferate in the lamina propria of CT

mast cells and basophils come from the same progenitor cells

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

Explain lymphocytes?

A

small and spherical
condensed basophilic nucleus

immune cells - B and T

B cells develop into plasma cells

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

Explain plasma cells?

A

come from B lymphocytes

secretes single class of IG

basophilic cytoplasm

clock-face nucleus

negative golgi

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

eosinophils?

A

red granules in the cytoplasm
condensed, bilobed nucleus
phagocytosis of antibody

kills parasitic worms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the classifications of connective tissue?

A
  1. embryonic connective tissue
  2. CT proper
  3. specialized CT
18
Q

What is the embryonic connective tissue

A

mesenchyme- mucous connective tissue

19
Q

What are the types of CT proper?

A

loose connective tissue (areolar) and dense connective tissue

20
Q

What are the subsections of dense connective tissue?

A

regular and irregular

21
Q

What are the specialized connective tissue?

A
  1. cartilage
  2. bone
  3. adipose tissue
  4. blood
  5. hemopoietic tissue
  6. lymphatic tissue
22
Q

What are the components of connective tissue?

A

cells

fibers and ground substance in the ECM

23
Q

Why is CT important?

A
  1. support (stroma- supporting structures)
  2. repair
  3. Defense (immune function)
  4. Nutrition (storage and transport)
24
Q

What are the characteristics of mesenchyme?

A

a lot of ground substance

cells have a tapered spindle appearance

sparsely arranged reticular fibers

25
Q

characteristics of mucous CT?

A

ground substance is a gelatinous consistency

few cells and fibers

mainly ground substance

26
Q

Where is mucous CT found?

A

umbilical card (Wharton’s jelly)

27
Q

features of LCT?

A

large number of cells compared to fibers
rich blood supply

found below most epithelial linings

28
Q

features of Dense irregular CT?

A

fewer cells, more fibers
no orientation of fibers

usually organ capsules, dermis, periosteum

29
Q

features of dense regular CT?

A

specific orientation of fibers

imparts tensile strength

found in: tendons and ligaments

30
Q

components of dense regular CT?

A

fibroblasts and type 1 collagen fibers

31
Q

what is the structure of a tendon?

A

epitendineum- covering the whole tendon

peritendineum - surrounds a group of fascicles

endotendineum- covering around a group of fibers

32
Q

components of reticular CT?

A

fibroblasts

reticular fibers

33
Q

function of reticular CT?

A

forms a framework for tissues
thin branching fibers

Ex: liver, lymph nodes

34
Q

features of elastic connective tissue?

A

elastic fibers (yellow)

they are connected by desmosine and isodesmosine

35
Q

adipose CT?

A

cells nucleus is pushed to the periphery

one big fat droplet

used for storage

36
Q

Brown adipose CT?

A

smaller
central nucleus
heat conduction

more common in babies

37
Q

What is a hypertrophic scar?

A

Scar when more raised than normal, but within original wound boundary (fibrosis)

38
Q

what is a keloid scar?

A

the scar is surrounding into surrounding tissue (keloid)

39
Q

What leads to fibrosis and keloids?

A

increased collagen production

40
Q

What occurs due to a vitamin C deficiency?

A

scurvy due to the decreased production of collagen due to the lack of vitamin C

41
Q

What is anaphylactic shock?

A

increased mast cell release of histamine

42
Q

What is edema?

A

swelling due to increased tissue fluid

Test 2 FTM (28 decks)

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