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Organ Histology > Exam 1 > Flashcards

Exam 1 Flashcards

0
Q

What are the locations of the merocrine glands

A

goblet cell, salivary glands, pancreas,

all sweat glands in children; many adultsweat glands

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1
Q

Merocrine secretion
cell damage?
odor?

A

None

None

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2
Q

What are some examples of the location of the Halocrine glands?

A

sebaceous glands, tarsal (Meibomian) glands of eyelid

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3
Q

Which type of gland secretes by the disintegration of its cell membrane, and in a sense becomes a secretory vesicle?

A

Holocrine

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4
Q

what are some examples of an apocrine gland?

A

lactating mammary glands, some adult sweat glands,ceruminous glands in external auditory canal,
ciliary (Moll’s) glands in eyelid

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5
Q

Apocrine gland…
cell damage?
odor?

A

little

yes

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6
Q

what is the smallest division of the gland?

A

Ascinus

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7
Q

What is sometimes attached to the mucus ascinus?

A

serous demilune, small caniculi attach to the lumen for secretion

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8
Q

What type of cell are epithelial in origin and are contractile?
Especially found where?
function…

A

Myoepithelial cells
Salivary and Sweat Glands; Lacrimal Glands;
Lactating Mammary Glands
assist in secretion

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9
Q

What do serous glands produce?
What are some examples?
shape and shape of nucleus?

A

Proteins
Pancreas, parotid gland, chief cells in stomach
trapezoid and round

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10
Q

What do mucus glands produce?
What are some examples?
shape and shape of nucleus?

A

mucus (glycoproteins)
Goblet cells, mucus cells in stomach, minor salivary glands in tongue and palate
nucleus is peripheral and flat

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11
Q

Example of a mixed gland…

A

Sublingual and submandibular salivary glands

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12
Q

Where are serous demilunes possible

a. serous
b. mucus
c. mixed

A

mixed gland

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13
Q

What regulates exocrine secretion? (3 things)

A

myoepithelial cells - have ANS innervation
hormones
blood supply

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14
Q

What does an increase in blood supply do to exocrine secretion?

A

an increase in blood supply will mean an increase in exocrine secretion

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15
Q

What are the two main components of connective tissue matrix?

A

Ground substance and fibers

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16
Q

Fibroblasts are usually derived from what type of cell?

A

mesenchyme cell

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17
Q

When will fibroblast tend to divide?

A

during wound healing

18
Q

A fibroblast may turn into another type of cell during what fibrocartilage formation, what type of cell does it form?

A

chondrocyte

19
Q

What three types of cells can a fibroblast become?

A

adipocyte, chondrocyte, osteoblast

20
Q

Scar tissue is classified as what kind of tissue?

A

dense irregular connective tissue

21
Q

What are the two functions of fibroblasts?

Which is the main function?

A

Structural and Defensive

Structural

22
Q

What is a mature fibroblast?

A

fibrocyte

23
Q

What is the function of fibrocytes?

What can it not do that a fibroblast can do?

A

make ground substance

24
Q

Which type of cell appears flat?

a. fibroblast
b. fibrocyte
c. myofibroblast
d. adipocyte

Which doesn,t divide?

Which is responsible for wound healing and tooth eruption?

A

b.

c

25
Q

Adipocytes are usually derived from what type of cell?

A

mesenchyme cells

26
Q

plasma cells are derive from what?

A

B lymphocytes

27
Q

What cells produce antibodies?

A

plasma cells

28
Q

What cells contain residual bodies?

A

macrophages

29
Q

T/F

Macrophages can divide.

A

True

30
Q

T/F

Macrophages are derived from mesenchyme cells

A

F

derived from monocytes

31
Q

Where do macrophages typically come from?

A

bone marrow

32
Q

What are some examples of macrophages?

A

Kupffer cells, alveolar macrophages, monocytes, microgliaLangerhans cells, osteoclasts

33
Q

What kind of granules do mast cells contain?

A

cytoplasmic

34
Q

Do mast cells divide?

A

yes

35
Q

Mast cells are derived from what?

What where they originally thought to be derived from?

A

bone marrow

basophils

36
Q

Mast cells mediate what events?

A

A. Inflammation
B. Immediate Hypersensitivity Response
C. Anaphylaxis
D. Asthma – most types

37
Q

What are the four primary mediators that mast cells release?

A

Histamine, Heparin, ECF, NCF

38
Q

T/F

Heparin increases blood flow to affected area by vasodilating arteriole and small vessels

A

false

Histamine is the on switch

39
Q

Histamine causes the contraction of any __________ __________ muscle

A

smooth visceral

40
Q

What does ECF do?

A

attracts eosinophil

41
Q

What are the effects of eosinophil?

A
  • Inhibit leukotrienes
  • Produce a factor that inhibits mast cell degranulation
  • Phagocytize IgE-allergin complexes and mast cell granules
  • Secretes histaminase
42
Q

Eosinophils limit the effect of what two primary mediators?

A

histamine and leukotrienes

43
Q

Leukotrienes amply the effect of what?

A

histmine

Organ Histology (2 decks)

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