Brainscape's Knowledge GenomeTM

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


See full index

HUMAN HISTOLOGY > Epithelial Tissue > Flashcards

Epithelial Tissue Flashcards

1
Q

It is composed of closely aggregated polyhedral cells adhering strongly to one another and to a thin layer of ECM

A

Epithelial Tissue

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

What are the functions of Epithelium?

A
  1. Covering, lining, and protection
  2. Absorption
  3. Secretion
  4. Filtration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What characteristics are these; squamous, cuboidal, and columnar?

A

Shape

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

What characteristics are these; oval, spherical, and flattened?

A

Nuclei

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

What characteristics are these; basal pole, apical pole, and lateral surfaces?

A

Polarity

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

It is a thin extracellular, felt-like sheet of
macromolecules. A SEMIPERMEABLE FILTER for substances reaching epithelial cells from below.

A

Basement Membrane

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

What are the two parts of the Basement Membrane?

A
  1. Basal Lamina
  2. Reticular Lamina
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

It is composed of the cells responsible for the organ’s specialized functions, wherein the CELLS HAVE A SUPPORTING ROLE IN THE ORGAN.

A

Parenchymal and Stroma

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

What are the functions of Basement Membrane?

A
  1. Physical Support
  2. Cell Attachment
  3. Filter
  4. Guide Cell Migration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

SEALS ADJACENT CELLS TO ONE ANOTHER, controlling the passage of molecules between them; separate apical and basolateral membrane domains.

A

Tight Junction (Zonula Occludens)

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

PROVIDES POINTS LINKING THE CYTOSKELETON OF ADJACENT CELLS; strengthens and stabilizes nearby tight junctions.

A

Adherens Junction (Zonula Adherens)

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

Resembles a single “Spot-weld”, PROVIDES POINTS OF STRONG INTERMEDIATE FILAMENT coupling between adjacent cells, strengthening the tissue.

A

Desmosome (Muscula Adherens)

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

ANCHORS CYTOSKELETON to the basal lamina.

A

Hemidesmosome

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

ALLOWS DIRECT TRANSFER OF SMALL MOLECULES and ions from one cell to another.

A

Gap Junction (Nexus)

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

What are the MAJOR TRANSMEMBRANE LINK PROTEINS of Tight Junction (Zonula Occlodens)?

A

Occludins, Claudins, and ZO Proteins

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

What are the MAJOR TRANSMEMBRANE LINK PROTEINS of Adherens Junction (Zonula Adherens)?

A

Cadherin and Catenin

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

What are the MAJOR TRANSMEMBRANE LINK PROTEINS of Desmosome (Macula Adherens)?

A

Desmogleins and Desmocollin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the MAJOR TRANSMEMBRANE LINK PROTEINS of Hemidesmosome?

A

Integrins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the MAJOR TRANSMEMBRANE LINK PROTEINS of Gap Junction (Nexus)?

A

Connexin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

It is SMALL MEMBRANE PROJECTIONS with cores of ACTIN FILAMENTS.

A

Microvilli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Where are Microvilli found in the body organs?

A

Small Intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

It INCREASES THE SURFACE AREA AVAILABLE FOR ABSORPTION; a motion-detecting function best seen on the absorptive epithelial cells lining the male reproductive system.

A

Stereocilia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Where are Stereocilia found in the body organs?

A

Epididymis, Vas Deferens, and the Inner Ear

24
Q

It is LONG, HIGHLY MOTILE APICAL STRUCTURES. It has at least one short projection called a PRIMARY CILIUM.

A

Cilia

25
Q

Where are Cilia found in the body organ?

A

The Respiratory System (Trachea, Lungs, Digestive Tract, etc.)

26
Q

Are classified according to the number of CELL LAYERS and the CELL MORPHOLOGY in the outer layer.

A

Covering or Lining Epithelia

27
Q

A single-layer of FLAT CELLS with DISC-SHAPED NUCLEI wherein molecules can easily pass (diffusion & filtration).

A

Simple Squamous Epithelium

28
Q

Where is Simple Squamous Epithelium located?

A
  1. Renal Corpuscles
  2. Alveoli Lungs
  3. Lining of Heart, Blood, and Lymphatic System
  4. Lining of Ventral Cavity (serosae)
29
Q

A single-layer of CUBE-LIKE CELLS with LARGE, SPHERICAL CENTRAL NUCLEI that can produce secretion and absorption.

A

Simple Cuboidal Epithelium

30
Q

Where is Simple Cuboidal Epithelium located?

A
  1. Kidney Tubules
  2. Secretory Portion of Small Glands
  3. Ovary
  4. Thyroid Follicle
31
Q

A single-layer of COLUMN-SHAPED (rectangular) CELLS with OVAL NUCLEI that can produce ABSORPTION, SECRETION OF MUCUS, ENZYMES, and OTHER SUBSTANCES.

A

Simple Columnar Epithelium

32
Q

Where is Simple Columnar Epithelium located?

A
  1. Digestive Tract
  2. Gall Bladder
  3. Ducts of Some Glands
  4. Small Bronchi
  5. Uterine Tubes
  6. Uterus
33
Q

What does Pseudostratified Columnar Epithelium function?

A
  • All cells originate at basement membrane
  • Only tall cells reach the apical surface
  • It may contain goblet cells and bear cilia
  • Nuclei lie at varying heights within cells
  • Gives a false impression of stratification
  • Secretion of mucus; propulsion of mucus by cilia
34
Q

Where is the Pseudostratified Columnar Epithelium located?

A
  1. Ducts of Male Reproductive Tubes and some Large Glands
  2. Lines of Trachea and most of the Upper Respiratory Tract
35
Q

It consists of MANY LAYERS of cells but the APICAL PART of the tissue is a squamous epithelium.

A

Stratified Squamous Epithelium

36
Q

It contains the PROTECTIVE PROTEIN KERATIN.

A

Keratinized

37
Q

It forms the MOIST LINING of BODY OPENINGS.

A

Non-Keratinized

38
Q

Where is Keratinized located?

A

Epidermis

39
Q

Where is Non-Keratinized located?

A
  1. Esophagus
  2. Vagina
  3. Mouth
40
Q

Transitional Epithelium also known as?

A

Urothelium

41
Q

What do goblet cells produce?

A

Mucus

42
Q

Basal cells are usually CUBOIDAL or COLUMNAR, superficial cells are DOME-SHAPED or SQUAMOUS.

A

Transitional Epithelium

43
Q

Where is Transitional Epithelium located?

A
  1. Ureters
  2. Urinary Bladder
  3. Part of Urethra
44
Q

Epithelial cells that function mainly to PRODUCE and SECRETE various macromolecules may occur in epithelia with other major functions or comprise specialized organs.

A

Glands

45
Q

It REMAINS CONNECTED with the surface epithelium. It HAS DUCTS that lead to another organ or the body surface.

A

Exocrine Glands

46
Q

It LOSES CONNECTION to its original epithelium for PROTEIN or STEROIDS HORMONE SYNTHESIS and it has NO DUCTS.

A

Endocrine Glands

47
Q

It is the MOST COMMON METHOD of PROTEIN or GLYCOPROTEIN SECRETION

A

Merocrine Glands

48
Q

It RELEASES THE PRODUCT and CELL DEBRIS into the GLAND’S LUMENS

A

Holocrine Glands

49
Q

It RELEASES THE PRODUCT together with small amounts of CYTOPLASM and CELL MEMBRANE

A

Apocrine Glands

50
Q

Types of Exocrine Glands

A
  1. Simple
    * Tubular (Simple, Branched & Coiled)
    * Acinar (Simple & Branched)
  2. Compound
    * Tubular
    * Acinar
    * Tubuloacinar
51
Q

Types of Endocrine Glands

A
  1. Autocrine
  2. Paracrine
52
Q

Type of tissue that LINES OF SURFACE or BODY CAVITIES; glandular secretion

A

Epithelial Tissue

53
Q

Type of tissue that SUPPORTS and PROTECTION TISSUES and ORGANS

A

Connective Tissue

54
Q

Type of tissue that is STRONG CONTRACTION; BODY MOVEMENTS.

A

Muscle Tissue

55
Q

Type of tissue that TRANSMITTED TO A NERVE IMPULSE

A

Nervous Tissue

56
Q

What is called the FORMATION of cilia built around a sophisticated microtubule bundle?

A

Axoneme

57
Q

Skin

A

Skin

HUMAN HISTOLOGY (12 decks)

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