Chapter 5 Flashcards

1
Q

What are tissues made of?

A

Cells surrounded by matrix

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2
Q

What is a matrix made of?

A

Fibrous proteins and ground substance

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3
Q

What is ground substance made of?

A

Water, gases, and minerals

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4
Q

What is epithelial tissue?

A

Layers of closely spaced cells

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5
Q

Where in the body do you find epithelial tissue?

A

organ surfaces

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6
Q

What is connective tissue?

A

tissues with more matrix then cell volume

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7
Q

What does connective tissue do?

A

Bind together to protect organs

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8
Q

What is nervous tissue?

A

tissue with excitable cells and tranmits coded information

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9
Q

What is simple squamous epithelium?

A

thin, scaly cells

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10
Q

What is simple cubiodal epithelium?

A

square or round cells

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11
Q

What is simple columnar epithelium?

A

tall, narrow cells

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12
Q

What is pseudostratified columnar epithelium?

A

all cells touch the basement membrane

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13
Q

What is stratified epithelium?

A

2-20 layers of cells lying on top of each other

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14
Q

What is the most widespread epithelium in the body?

A

stratified squamus

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15
Q

What is keratin?

A

durable, waterproof protein

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16
Q

What is the most abundant tissue in the body?

A

Connective

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17
Q

What are the 8 functions of connective tissue?

A

binding of organs, support, physical protection, immune protection, movement, storage, heat production, and transport

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18
Q

What are the 6 cell types found in fibrous connective tissue?

A

Fibroblasts, macrophages, leukocytes, plasma cells, mast cells, and adipocytes

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19
Q

What are the 3 fibers found in fibrous connective tissue?

A

Collagenous fibers, reticular fibers, and elastic fibers

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20
Q

What are the 2 types of fibrous connective tissue?

A

Loose and dense

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21
Q

What is areolar tissue?

A

loose connective and extremely variable

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22
Q

What is reticular tissue?

A

loose connective and contains fibroblasts

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23
Q

What is adipose tissue?

A

loose connective tissue made of fat

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24
Q

What is dense regular connective tissue?

A

made of mostly fibroblasts and collagen fibers

25
What is dense irregular connective tissue?
random collagen fibers
26
What are the 3 types of cartilage?
hyaline, elastic, and fibrocartilage
27
What type of tissue is bone composed of?
osseus
28
What are the two types of bone?
Spongy and compact bone
29
What are haversian canals?
transports blod vesses and nerves
30
What is the bone matrix?
secreted by bone cells in rings
31
What are osteocytes?
live bone cells
32
What is the ground substance of blood called?
Plasma
33
What are the 3 formed elements in blood?
erythrocytes, leukocytes, and platelets
34
What are neurons?
nerve cells that carry electrical impulses across the body
35
What are neuroglia cells?
they assist neurons
36
What is skeletal muscle?
muscle attached to bones
37
What is cardiac muscle?
muscle found only in the heart
38
What is smooth muscle?
muscle that forms the walls of internal organs
39
What are intercellular junctions?
protein structures that connect cells together
40
What are tight junctions?
multiple proteins in adjacent cells
41
What are desmosomes?
patch-like protein plaques
42
What are gap junctions?
6 transmembrane proteins that form a tunnel that connects cytoplasm
43
What is a gland?
a cell or organ that secretes substances elsewhere in the body
44
What are exocrine glands?
secretions that reach the surface of an organ or through a duct
45
What are endocrine glands?
secretions go to bloodstream
46
What are the 3 types of glandular secretions?
serous, mucous, and cytogenic
47
What are the 2 methods of secretion?
merocrine and holocrine
48
What is merocrine secretions?
are released through exocytosis
49
What is holocrine secretions?
are released when cell ruptures
50
What is metaplasia?
change from one type of tissue to another
51
What is hyperplasia?
tissue growth via cell replication
52
What is hypertrophy?
tissue growth through cell enlargement
53
What is atrophy?
shrinkage of tissue
54
What is necrosis?
premature death of tissue
55
What is infarction?
sudden death of tissue due to lack of blood
56
What is apoptosis?
programmed cell death
57
What is regeneration?
replacement of dead and damaged cells
58
What is fibrosis?
replacement of damaged tissue with scar tissue