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Med Careers > Epithlium Tissue > Flashcards

Epithlium Tissue Flashcards

1
Q

Characteristics of Epithelium Tissue

A

Always has a free too or Apex (nothing sits on top of it)
Cellularity- Made up of tightly packed cells
Avascular- but has nerves (innervation)
Frequently replaced (regenerative)
Can have Cilia and Microcilli

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2
Q

Simple Squamous Location

A

Line inside of all blood vessels (endothelium, endo=inside)
Lines inside of the heart
Lines the walls of capillaries and are responsible for feeding tissue and alveoli

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3
Q

Simple Squamous Function

A

Diffusion

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4
Q

Simple Cuboidal Location

A

Kidney tubulesand ducts of some glands (salivary, thyroid, pancreas, and liver)
Glands
ABSORPTION AND EXCRETION

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5
Q

Simple Cuboidal Function

A

Secretion and sometimes absorption

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6
Q

Simple Columnar Function

A

A big absorber, and cilia help move things

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7
Q

Simple Columnar Location

A

Line uterus/Fallopian tubes, stomach, and intestines

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8
Q

Psudostratified Columnar Function

A

Sweep debris out of lungs, goblet cells produce mucin (white, runny, clear), histamine (released by WBCs causes goblet cells to increase activity)

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9
Q

Psudostratified Columnar Location

A

ONLY found in lining of upper respiratory tract (trachea, bronchi, and bronchioles)

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10
Q

Stratified Squamous Function

A

Wear and tear tissue, made to take lots of low energy friction, exposure to the environment, protect us from fluid loss and invasion

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11
Q

Stratified Squamous Location

A

Outer layer of skin, and lines the mouth, throat, vagina, and Anal canal

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12
Q

Connective tissue characteristics

A 
Most common tissue
More matrix than cells
Fibers running through matrix
Holds things together and provides structure and support
Vascularity varies
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13
Q

Cartilage characteristic

A 
Firm matrix 
Avascular
Chondrocytes live in little pools because of the firm matrix called lacunae
No room for nerves 
Perichondrium surrounds cartilage
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14
Q

Hyaline cartilage characteristics

A

Toughest cartilage there is
Wear and tear cartilage
Found between
White and leaded with collagen fiber

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15
Q

Hyaline cartilage location

A

Nose, trachea, bronchioles tubes, and connecting ribs to sternum

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16
Q

Fibrocartilage Characteristics

A

Alternating rows of cells, matrix, and fibers

Forms disc of the knee mechanisms, intervertebral discs, and pubic symphysis

17
Q

Elastic Cartilage

A

Strong like hyaline but can return to its original shape after extreme bending
External ears, epiglottis

18
Q

Ring of cells

A

Lamella

18
Q

Tony canals that carry nutrients from one lacunae to another

A

Canalicali

18
Q

Haversian Canal

A

Carries blood vessels and nerves to the group of Lamella

18
Q

Volkmann’s Canal

A

Travel at right angles connecting medullary cavity

18
Q

Loose areolar

A

Lots of space for blood vessels
Very vascular
Can take in edema
Found under skin (cushions)

18
Q

Adipose

A

Vacuole stores triglycerides

Very vascular

18
Q

Loose reticular

A

Makes up framework of non-hollow organs like spleen, liver, lymph nodes
Lots of WBCs
VERY VASCULAR
PART OF LYMPH SYSTEM

18
Q

Dense Irregular

A

Packed w/ fibers
Fibers running in all directions
Found wrapping bone (periosteum), cartilage (Perichondrium)
GI TRACT

18
Q

Dense regular

A

Very packed
All fibers in same direction
Makes up tendons, ligaments, and fibrous membrane

19
Q

Dense elastic

A

Has some give to it
Found in transitional epithelium , wall of respiratory pathways, walls of BVs
Also in elastic ligaments around vertebrae

20
Q

Skeletal muscle

A 
Striated 
M+ cells can only contract 
Align parallel so they can pull together 
VOLUNTARY 
Permanent go
Vascular 
Many mitochondria
21
Q

Cardiac Muscle

A 
Only in heart 
Only one nuclei 
Cells are short and branched 
INVOLUNTARY 
use FFA and Lactase 
Interacted discs help beat as a unit 
Permanent go
22
Q

Smooth muscle

A

Not striated
Tapered ends
Involuntary but sensitive to autonomic and hormone stimulation

Med Careers (7 decks)

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