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ana 1 > Epithelium & Glands > Flashcards

Epithelium & Glands Flashcards

1
Q

Type of epithelium found in the lining of the blood vessels, plueral cavity, peritoneum, and pericardium.

A

Simple squamous epithelium

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2
Q

Give example of simple cuboidal epithelium

A

Thyroid and ovarian follicle

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3
Q

Where does simple columnar epithelium usually found

A

Intestine, renal collecting tubules

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4
Q

Cell shape that is tall as they are wide. With spherical nucleus.

A

Cuboidal

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5
Q

Elongated cell shape with elongated nucleus

A

Columnar

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6
Q

Type of epithelium that shows an illusion of stratification.

A

Pseudostratified epithelium

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7
Q

Where is stratified squamous Keratinized epithelium found?

A

Epithelia

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8
Q

Where is stratified squamous non keratinized epithelia found?

A

Mouth, vagina, anal canal, larynx, esophagus

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9
Q

Where is pseudostratified found?

A

Nasal cavity, bronchi, trachea

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10
Q

Where is stratified columnar epithelium found?

A

Conjunctiva

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11
Q

Aggregated polyhedral cells

A

Epithelia

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12
Q

Characteristics of epithelium

A

Avascular
Polarity
Presence of basement membrane or basal lamina
Presence of cell juntion

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13
Q

Main intermediate filament of epithelia

A

Keratin

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14
Q

Is keratin made of dead skin cells?

A

T

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15
Q

Diff. Basal lamina with basement membrane.

A

Basal lamina is a part of basement membrane

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16
Q

2 parts of basement membrane

A

Basal lamina

Reticular lamina

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17
Q

What type of collagen is basal lamina made of?

A

Type IV collagen

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18
Q

What type of collagen is reticular lamina made of?

A

Type III collagen

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19
Q

What binds basal and reticular lamina?

A

Type VII collagen

20
Q

Enumerate the Junctions of epithelium

A 
Tight junction
Adherens 
Desmosomes
Hemidesmosomes
Gap junction
21
Q

Tight junction (zonula occludins)

Protein component
Function
Defect

A

Occludin & claudin
Ensure that mol travel transcellularly and not paracelullarly
Compromised BBB. Neurological disorder.

22
Q

Zonula adherens / adherent junction

Protein component
Function
Defect

A

E-cadherin & catenin
Terminal Web
Carcinoma

23
Q

Desmosomes (Macula adherens)

Protein component
Function
Defect

A

Cadherin family
Strong achor
Skin disorder

24
Q

Hemidesmosomes

Protein component
Function
Defect

A

Integrin
Binds the epithelium to the basal lamina
Epidermolysis bullosa (blisters)

25
Q

Gap Junction (nexus)

Protein component
Function
defect

A

Connexin
Transfer mol from one cell to another
Type of deafness & peripheral neuropathy

26
Q

Differentiate exocrine from endocrine

A

Exocrine - w/ ducts. Substances are near to its target site.

Endocrine - ductless. Hormones travel via bloodstream

27
Q

Differentiate simple from compound glands

A

Simple - ONLY the secretory portion is branching

Compound - both secretory and duct is branching

28
Q

3 mechaninsm of cell release

A

Merocrine
Apocrine
Holocrine

29
Q

Most common type and typical release of hormones. Ex: sweat glands

A

Merocrine

30
Q

A part of the APICAL layer of the cell are released along the products.

A

Apocrine

31
Q

The whole cell disintegrates along with its products.

A

Holocrine

32
Q

Example of apocrine. (Pinch)

A

Fat droplets from mammary gland

33
Q

Example of organ that follows holocrine pathway

A

Sebaceous gland

34
Q

Example of simple tubular

A

Intestines

35
Q

Example of branched tubular

A

Stomach and uterus

36
Q

Example of acinar

A

Mucous gland of urethra

37
Q

Branched acinar

A

Sebaceous gland

38
Q

Example of coiled tubular

A

Sweat glands

39
Q

Example of compound tubular

A

Brunner glands of duodenum

40
Q

Example of compound acinar

A

Exocrine pancreas

41
Q

Tubuloacinar

A

Salivary glands

42
Q

Differentiate serous from mucous cell

A

Serous - round nucleus. Pyramidal w/ long base. Shape like a grape.

Mucous - nucleus is oval as it is PRESSED on the periphery. Cuboidal to columnar

43
Q

Possible secretion membranes

A

Purely serous
Mixed glands, predominantly serous
Mixed glands, predominantly mucous

44
Q

Differentiate

Microvili
Steriocilia
Cilia

A

Microvili - non motile. Extends surface area. Absorption. (Intestine)
Steriocilia - non motile. Extends surface area. BRANCHING
Cilia - MOTILE. Lining of respiratory tract.

45
Q

There is NO microvili in the stomach. T/F

A

T

46
Q

Examples of thick and thin skin

A

Thick - palm and soles

Thin - vaginal lining, mouth.

47
Q

Microvili can be found in the small intestine. T/F

A

T

ana 1 (5 decks)

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