Chapter 4 Flashcards

0
Q

Epithelial

A

Protects, supports, and binds organs, stores energy as fat, provides immunity

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1
Q

Tissues

A

Group of cells that are similar in structure and perform a common related function

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2
Q

Muscular

A

Generated the physical force needed to make body structures move and generate body heat.

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3
Q

Nervous

A

Detect changes in the body and responds by generating nerve impulse

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4
Q

Histology

A

The study of tissues

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5
Q

Germ layers

A

Ectoderm- nervous
Endoderm
& Mesoderm- muscles drive from hereb

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6
Q

Epithelial tissue or epithelium

A

Consists of cells arranged in continuos sheet, in either single or multiple layers

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7
Q

3 major fictions

A

Selective barrier
Secretory
Protective

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8
Q

Selective barrier

A

Regulates the movement of materials in and out of the body

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9
Q

Secretory

A

Release products onto the free surfaces

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10
Q

Protective

A

Line surfaces against the environment

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11
Q

Apical surface

A

Faces the body surface, body cavity, lumen or duct

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12
Q

Lateral surfaces

A

Faces adjacent cells

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13
Q

Basal surface

A

Opposite of apical layer and adhere to extracellular materials

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14
Q

Basement membrane

A

Thin double extracellular layer that serves as the point of attachment and support for overlying ET

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15
Q

Basal lamina

A

Closer to the secreted by the epithelial cells

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16
Q

Reticular lamina

A

Closer to and secreted by the underlying CT

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17
Q

ET

A

Own nerve supply
A vascular or lacks it’s own blood supply
High rate of cell division for renew and repair

18
Q

First name

A

The number of cell layers present

19
Q

2nd name

A

Describes the shape of its cell

20
Q

Simple epithelium

A

Single layer of the cels

Function– diffusion, osmosis, filtration, secretion, or absorption

21
Q

Pseudo stratified epithelium

A

Multiple layers because cell nuclei at different levels, but is only one layer

22
Q

Stratified epithelium

A

Two or more layers of cell

23
Q

Squamous

A

Thin cells arranged like floor tiles

Allows for rapid passage substance

24
Q

Cuboidal

A

As tall as they are wide, shaped like cubes or hexagons

Mainly function in secretion or absorption

25
Q

Columnar

A

Much taller than they are wide, like columns
May have cilia or micro villi
Function for secretion and absorption

26
Q

Transitional

A

Cells change shape, transition for flat to a small size

27
Q

Simple squamous epithelium

A

Single layer of cell resembles a tiled floor on the surfaces

28
Q

Nucleus

A

Is centrally located and appears flattered oval or sphere

29
Q

Endothelium (inner covering)

A

Provides a slick, friction reducing lining in the lymphatic vessels, blood vessels and heart

30
Q

Mesothelium (middle covering)

A

Found in the serous membranes lining the ventral body cavity and covering its or organs

31
Q

Simple cuboidal epithelium

A

Single layer of tall cells

32
Q

Nonciliated

A

Line most of the digestive tract

33
Q

Ciliated

A

Line very small bronchi ( lungs ) and uterine tubes

34
Q

Keratinization

A

The process in which the cytoplasm of the cells is replaced by the protein

35
Q

Keratin

A

Fibrous protein that helps give the epidermis it’s protective properties

36
Q

Basal cells

A

Are more active in mitosis and produce cells that move toward the surface

37
Q

Function

A

Protects underlying tissues in areas subjected to abrasion

38
Q

Keratinized

A

Forms the epidermis of the skin

39
Q

Nonkeratinized

A

Esophagus , mouth ,Hand , vagina

40
Q

Stratified cuboidal

A

Apical layers are cuboidal

Functions in protection

41
Q

Stratified columnar

A

Columnar = apical layer only
Basal layer has shorten
Function is protection and secretion

42
Q

Transitional

A

Found only in urinary system
In relaxed state cells appear cuboidal or columnar
Upon stretching cell appear squamous
Ideal for hollow structure subjective to expiation