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Structure and Function > Tissues Of Body > Flashcards

Tissues Of Body Flashcards

0
Q

Purpose of tissues:

A

To help maintain homeostasis

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1
Q

Tissues defined:

A

A group of cells and surrounding material that work together to form a function

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2
Q

Types of tissues:

four total

A
  1. Epithelial tissue
  2. Connective tissue
  3. Muscle tissue
  4. Nervous tissue
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3
Q

Define epithelial tissue:

A

“One free surface” (always)
“bark of a tree”
“Skin”

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4
Q

The two types of epithelial tissue:

A
  1. Membranous
    Covering and lining
  2. Glandular
    Within covering and lining
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5
Q

Purpose of membranous epithelial tissue: (five functions)

A
  1. Protection
  2. Filtration
  3. Secretion (of cells own product)
  4. Absorption
  5. Excretion (of waste)
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6
Q

What type of free surfaces does the membranous epithelial tissue cover?

A
  • Internal and external skin
  • Body cavities
  • Joint capsules
  • Hollow organs
  • Lines ducts
  • Forms glands
  • Interior lining of blood vessels & respiratory, digestive, urinary, and reproductive systems
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7
Q

Simple epithelial tissue

A
  • Single layer
  • -Selective barrier
  • -secretes substances onto free surfaces
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8
Q

Stratified epithelial tissue

A
  • multiple layers
  • -protected surfaces
  • –Keratin
  • –Cilia
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9
Q

Keratin

A

An insoluble protein found in the hair, nails, and other keratinized tissues of the epidermis

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10
Q

Cilia

A

Are numerous, short, hairlike projections that extend from the surface of the cell; helps move substances.

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11
Q

Shapes of epithelial:

Four total

A
  1. Squamous-flat
  2. Cuboidal-square
  3. Columnar-long and narrow
  4. Transitional-flat to cuboidal
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12
Q

Types of glands:

A
  1. Endocrine - secretes into blood

2. Exocrine - takes secretions away

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13
Q

Exocrine gland secretes:

A 
Mucus
Sweat (sudoriferous)
Oil (sebaceous)
Digestive enzymes
Earwax
Saliva
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14
Q

Endocrine gland secretes:

A 
Hormones
--from
---pituitary (master gland)
---thyroid
---adrenal
Directly into blood stream 
Ductless
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15
Q

Connective tissue

A

Supporting fabric of the body

16
Q

Purpose of connective tissue?

A
  1. Major transport sys
  2. Primary location of stored energy
  3. Main source of immune response
  4. Makes compartments for other structures
  5. Binds together, supports & strengthens other body tissues
  6. Protects and insulates internal organs
17
Q

Characteristics of connective tissue?

A
  1. Non-living material between cells aka “matrix”
  2. Cells widely spaced
  3. Usually not found on body surfaces
18
Q

Types of connective tissue?

Four

A
  1. Liquid
    - -matrix; plasma; blood
  2. Soft (semi-matrix)
    - -membranes; fat
  3. Fibrous
    - -tendons (muscle-bone); ligaments (bone-bone); linings (around bone/muscle); coverings; walls (vocal cords)
  4. Hard
    - -cartilage (hyaline, fibro, elastic); bone (early skeleton vs adult.. Ossification)
19
Q

Types of muscle tissue?

A
  1. Skeletal - movement & heat
  2. Cardiac - heart
  3. Smooth - digestive system

2&3 - involuntary

20
Q

Nervous tissue?

A
  • Detects changes in the external and internal environment
  • Initiates movement and/or glandular secretion
  • Neuron (nerve cell) conducts nerve impulse through irritability and conductivity

Structure and Function (5 decks)

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