Tissue Level of Organization Flashcards

1
Q

A tissue is a group of _____ working together to perform a ________ ________.

A

cells, specific function

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2
Q

What are the 4 main types of tissue?

A

Epithelial, connective, muscle & neural

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3
Q

Epithelial tissue is a continuous _____ of closely bound cells.

A

sheet

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4
Q

What are the 3 possible shapes of epithelial tissue?

A

squamous (long & thin), cuboidal (squares), columnar (tall & thin)

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5
Q

What are the 3 possible arrangements of epithelial tissue?

A

simple (1 layer), stratified (multiple layers), pseudostratified (1 layer that looks like many)

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6
Q

Where can you find simple squamous epithelial cells?

A

Alveoli, capillaries & serous membranes (very thin & permeable).

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7
Q

Where can you find stratified squamous epithelial cells?

A

Skin, mouth, esophagus, etc. (areas often exposed to abrasion or trauma).

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8
Q

Where can you find simple cuboidal epithelial cells?

A

Kidneys, thyroid.

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9
Q

Where can you find stratified cuboidal epithelial cells?

A

Sweat glands.

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10
Q

Where can you find simple columnar epithelial cells?

A

Digestive system (stomach & intestines), female reproductive system.

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11
Q

Where can you find stratified columnar epithelial cells?

A

Salivary glands.

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12
Q

Where can you find pseudostratified ciliated columnar epithelial cells?

A

Urethra, trachea, bronchi, male reproductive system.

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13
Q

__________ epithelial cells can change shape.

A

Transitional.

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14
Q

Where can you find transitional epithelial cells?

A

Bladder, uterus & other structures that often stretch/extend.

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15
Q

The ______ side of epithelial tissue is exposed to an internal or external environment.

A

apical

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16
Q

Epithelial tissue is rich in _______ ______ but has no _____ _______.

A

Sensory nerves (well innervated), blood vessels (avascular).

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17
Q

How do epithelial tissue get their nutrients if they don’t have blood vessels?

A

Nutrients are diffused or absorbed from the apical or basilar surface.

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18
Q

What are the 4 functions of epithelial tissue?

A
  1. Protect underlying surfaces (stratified squamous).
  2. Control permeability (simple squamous).
  3. Provides sensation.
  4. Produces secretions (glandular epithelia).
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19
Q

Where can you generally find epithelial tissue?

A

Covers all exposed surfaces, internal passages, hollow organs, cavities & ducts.

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20
Q

What are the 3 components of connective tissue?

A

Cells, extracellular fibres & ground substance.

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21
Q

What are the 3 types of extracellular fibres in connective tissue?

A

Collagen, elastic fibres & reticular fibres.

22
Q

_____________ ______ and ______ _________ make up the matrix between cells.

A

Extracellular fibres, ground substance.

23
Q

What are the 4 functions of connective tissue?

A
  1. Provide structure to the body.
  2. Transport (blood).
  3. Supports & protects organs (bone).
  4. Interconnects other types of tissues.
24
Q

What are the 6 different types of connective tissue?

A

Loose, dense (connective tissue proper).
Blood, lymph (fluid connective tissue).
Cartilage, bone (supporting connective tissue).

25
Q

Where can you generally find connective tissue?

A

Everywhere in the body, between other tissue.

26
Q

What are the 3 types of muscle tissue?

A

Skeletal, cardiac & smooth.

27
Q

Is skeletal muscle tissue mono- or multi-nucleated?

A

Multinucleated.

28
Q

Skeletal muscles are usually under _________ control.

A

voluntary

29
Q

Is skeletal muscle tissue striated or non-striated?

A

Striated (due to actin & myosin).

30
Q

Are cardiac muscle tissues mono- or multi-nucleated?

A

Mononucleated.

31
Q

Is cardiac muscle tissue striated or non-striated?

A

Striated.

32
Q

Cardiac muscle cells are under ___________ control and the heart has its own _________.

A

involuntary, pacemaker

33
Q

Is smooth muscle tissue mono- or multi-nucleated?

A

Mononucleated.

34
Q

Is smooth muscle tissue striated or non-striated?

A

Non-striated.

35
Q

Smooth muscles are usually under ___________ control.

A

involuntary

36
Q

What are 3 functions of muscle tissue?

A

Movement, heat & posture.

37
Q

Where is skeletal muscle tissue found?

A

Anywhere there is movement.

38
Q

Where is cardiac muscle tissue found?

A

The heart.

39
Q

Where can smooth muscle tissue be found?

A

Around hollow organs (bladder, stomach, bowel) & passageways to the exterior (respiratory & digestive tracts).

40
Q

What is neural tissue made out of?

A

Neurons.

41
Q

What is the function of neural tissue?

A

Transmits electrical impulses between different regions of the body.

42
Q

Where can you find neural tissue?

A

Throughout the entire body.

43
Q

Membranes are made up of a layer of __________ tissue over a layer of __________ tissue.

A

epithelial, connective

44
Q

What are the 4 types of membranes in our bodies?

A

Mucous, serous, cutaneous & synovial membranes.

45
Q

Where can you find mucous membranes?

A

Respiratory & GI tract.

46
Q

What types of tissue are mucous membranes made of?

A

Simple columnar epithelial cell & loose connective tissue.

47
Q

Where can you find serous membranes?

A

Ventral body cavity (parietal) & organs (visceral).

48
Q

What types of tissue are serous membranes made out of?

A

Simple squamous epithelial cells & loose connective tissue.

49
Q

What is the main cutaneous membrane in the body?

A

Skin.

50
Q

What is cutaneous membrane made of?

A

Stratified squamous epithelial cells & dense connective tissue.

51
Q

Where can you find synovial membranes?

A

Lining of joint cavities.

52
Q

What are the 3 types of cartilage?

A

Hyaline, elastic & fibrous.