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Human Biology > Week 2 (epithelial cells) > Flashcards

Week 2 (epithelial cells) Flashcards

1
Q

what are the four primary tissue classes

A
  • Epithelial
    • Muscle
    • Nervous
      -Connective
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2
Q

Identify the diagram

A
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3
Q

What are the two layers of epithelium

A
  1. Basal lamina (in red) (made by epithelial cells)
  2. Reticular lamina (yellow) (secreted by connective tissue cells)
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4
Q

Classified by arrangement of cells into layers (draw and define)

A

1) Simple: One cell thick
2) Stratified: Multi cell layers thick
3) Pseudo-stratified: single layer of cells (nuclei found at different levels)

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5
Q

Identify

A
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6
Q

Classified by shape of surface cells

A

1) squamous = flat
2) cuboidal = cube-shaped
3) columnar = tall column
4) transitional = shape varies with tissue stretching

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7
Q
A
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8
Q
A
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9
Q

Microvilli

A

Microvilli: Increase the surface area for re-absorption (rigid)

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10
Q

Cilia

A

Cilia: Aids the movement of fluids (non-rigid)

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11
Q

Simple squamous cells (location and function)

A

Location: The lungs, lining of the heart, blood vessels, lymphatic vessels
Function: semi-permeable, secretes lubricating substance

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12
Q

Simple cubodial

A

Location: Ducts, secretory portions of glands in kidneys
Fucntion: absorbs, secretes muscus and enzymes

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13
Q

Simple colmunar

A

Location
1) ciliated: bronchi, uterine tubes, uterus
2) Smooth: digestive tract, bladder

Function: secretes muscus; cilia moves mucus

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14
Q

pseudostratified columnar

A

Location: lining of the trachea, upper respiratory tract

Function: Secretes mucus; cilia move mucus

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15
Q

Stratified squamous

A

Location: lining of esophagu, mouth, vagina

Function: Protection from abrasion

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16
Q

Stratified cubodial

A

Location: sweat glands, salivary glands, mammary glands
Fucntion: Protective tissue

17
Q

Stratified columnar

A

Location: Male urethra, glandualr ducts
Function: secretes, portects

18
Q

Transitional

A

Location: lining of the bladder, urethra, ureters
Function: Expansion and stretch of organs

19
Q

What are the two types of glands

A

Exocrine glands and Endocrine glands

20
Q

Exocrine glands

A
  • Cells that secrete (sweat, ear wax, saliva, digestive enzymes)
    onto body surfaces or into body cavities
  • Connected to the surface by tubes (ducts)
21
Q

2) Endocrine gland

A
  • Secrete hormones which move into the bloodstream or lymphatic
    fluid to travel to target organs
  • Often called ductless glands
22
Q

Merocrine

A

Exocrine gland: Merocrine gland secrete their product by exocytosis ( sweat glands and the salivary glands.)

23
Q

Holocrine

A

The entire secretory cell ruptures, releasing secretions and dead cell fragments (sebaceous glands of the skin and the meibomian glands of the eyelid)

24
Q

Osmosis:

A

The movement of water [SOLVENT (a fluid)] from an area of high concentration an area of high concentration to a low concentration through a semi-permeable membrane.

25
Q

Diffusion

A

The movement of [Solute: iron] from an area of high concentration to low concentration

26
Q

A red blood cell was placed into a solution that was isotonic, hypertonic or hypotonic. what is the affect on the cell and why

A

Hypertonic: High concentration in the red blood cell 2% NaCI (moves
Isotonic: Similar Equilibrium 0.9% NaCI
Hypotonic: Low concentration in the red blood cell 0% NaCI

27
Q

What are the different type of CAMs: Cell Adhesion Molecules

A

Tight Junctions:
Desmosomes:
Gap Junction:

28
Q

What are the different types of muscle

A

skeleton muscle, smooth muscle, cardiac muscle

29
Q

Two type of Connective Tissue Proper

A

1) Loose connective tissue; supports structures that it surrounds
2) Dense Connective tissue: highly fibrous (collagen)’ little vascularization; reinforces and binds structures

30
Q

what are the specialised connective tisssues

A

1) Cartilage
2) Bone
3) Blood

31
Q
A
32
Q
A

skeleton muscle, smooth muscle, cardiac muscle

33
Q
A

skeleton muscle, smooth muscle, cardiac muscle

34
Q
A

skeleton muscle, smooth muscle, cardiac muscle

35
Q

Description of the fibres, voluntary?, Location?

A
36
Q
A
37
Q

Idenitfy the tissue types associated with the structure/function

A
38
Q
A

Human Biology (13 decks)

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