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ANAT 200 > Tissue Types > Flashcards

Tissue Types Flashcards

1
Q

Epithelial Tissue

A

-forms barriers
- covers exposed body
- lines hollow organs,cavities,glands
-forms glands

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2
Q

Characteristics of Epithelia

A
  • continuous
  • avascular
    -rests at basal lamina
    -less extracellular matrix
  • polarized
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3
Q

Simple Squamous Epithelium

A
  • single layer flat cells
  • lines body cavity (mesothelium)
    -lines heart chambers (endothelium)
  • lines lungs (site of gas exchange)
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4
Q

Simple Cuboidal Epithelium

A
  • single cell layer
  • cell heigh equals width (square)
  • found in places of secretion/absorption
    -found in glands
  • lines kidney
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5
Q

simple columnar epithelium

A
  • single cell layer
    -cells taller than wide (rectangle)
  • lines digestive tract, fallopian tube, excretory system
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6
Q

Stratified squamous epithelium

A
  • 2+ layers
  • outermost layer
  • ## found in areas of mechanical stress (anal canal)
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7
Q

stratified cuboidal epithelium

A
  • 2-3 layers
  • outermost layer with equal height/width
  • lines larger ducts (sweat/mammary)
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8
Q

stratified columnar epithelium

A
  • multi cell layer
  • taller than wide
  • large excretory ducts, pharynx, urethra
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9
Q

pseudostratified columnar epithelium

A
  • nuclei appear at many levels
  • all cells touch basal lamina but not surface
  • respiratory system
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10
Q

transitional epithelium

A
  • multi cell layer
  • outermost layer found ONLY in urinary tract
    -dome shaped
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11
Q
A
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12
Q

connective tissue

A

-links tissue and organs
- structural/metabolic support
- stores energy
-forms immune system

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13
Q

Characteristics of connective tissue

A
  • few cells
  • lots of extracellular matrix
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14
Q

Collagen

A
  • provide tensile strength
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15
Q

Reticular fibres

A
  • branching networks–> support cells
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16
Q

Elastic Fibres

A

-think branching fibres function like rubber bands
- move/flex w/o damage

17
Q

Mesenchyme

A

-found in dev. embryo
- remain as stem cells

18
Q

Glands

A
  • formed from epithelial cells
  • cells grow into underlying connective tissue
    Exocrine glands: release secretions through ducts onto epithelial surfaces
    Endocrine glads: no ducts, secrete hormones into blood
19
Q

loose connective tissue (3)

A
  • lots of ground cells, few fibres
    areolar :
    -links other tissues and organs together
  • fill spaces between organs - provides cushion and support
    Adipose:
  • fat tissue
  • forms deposits
  • padding/insulation + engery storage
    Reticular:
20
Q

Dense connective tissue

A
  • lots of fibres
    -little ground substance / cells
21
Q

dense irregular connective tissue

A
  • fibres unaligned, many angles
  • forms dermis, sheath around muscles, nerves, bones (protection in all directions)
22
Q

Dense regular connective tissue

A
  • aligned in one direction
  • formes tendons (muscle–bone)
    -forms ligaments (bone–bone)
23
Q

Membranes

A
  • epithelium and connective tissue
  • line surfaces, cavities and hollow organs
24
Q

Fluid connective tissue (2)

A

Blood:
- blood cells + plasma
-plasma=fluid matrix
Lymph:
- Lymphocytes + lymph fluid
-lymph fluid= proteins and excess intersitial fluid

25
Q

Supporting connective tissue (2)

A

Cartilage and bone
- support soft tissues of body
-incompressible matrix

26
Q

Muscle tissue

A
  • specialized for contraction
  • generates motion for body parts
  • move substances through blood vessels/hollow organ
  • maintains body temp
27
Q

characteristics of muscle tissue

A
  • elongated cells
  • contract and generate force
28
Q

Skeletal muscle tissue

A
  • attaches to bones
    -striated
    -VOLUNTARY contraction -stabilizes and moves skeleton
    -multinucleated tubes
29
Q

Smooth muscle tissue

A

-viscera
-cells short, spindle shaped ONE nucleus
-non striated
-INVOLUNTARY contraction - slow sustained contractios

30
Q

Cardiac muscle tissue

A
  • found only in heart
    -cells short, branches, SINGLE nuclei
    -striated
    -INVOLUNTARY contraction - continuous rhythmic contractions
31
Q

Nervous Tissue

A
  • receives/ processes signals from body and external environement
  • generates/transmits impulses control various functions of body (maintaining homeostasis)
32
Q

Characteristics of nervous tissue

A
  • asymmetrical cells, long processes
    -transmit electrical signals
33
Q
A

ANAT 200 (6 decks)

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