Tissue Level of Org Flashcards

1
Q

connective tissue

A

type of tissue that serves to hold in place, connect, and integrate the body’s organs and systems

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2
Q

connective tissue membrane

A

connective tissue that encapsulates organs and lines movable joints

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3
Q

cutaneous membrane

A

skin; epithelial tissue made up of a stratified squamous epithelial cells that cover the outside of the body

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4
Q

ectoderm

A

outermost embryonic germ layer from which the epidermis and the nervous tissue derive

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5
Q

endoderm

A

innermost embryonic germ layer from which most of the digestive system and lower respiratory system derive

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6
Q

epithelial membrane

A

epithelium attached to a layer of connective tissue

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7
Q

epithelial tissue

A

type of tissue that serves primarily as a covering or lining of body parts, protecting the body; it also functions in absorption, transport, and secretion

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8
Q

histology

A

microscopic study of tissue architecture, organization, and function

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9
Q

lamina propria

A

areolar connective tissue underlying a mucous membrane

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10
Q

mesoderm

A

middle embryonic germ layer from which connective tissue, muscle tissue, and some epithelial tissue derive

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11
Q

mucous membrane

A

tissue membrane that is covered by protective mucous and lines tissue exposed to the outside environment

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12
Q

muscle tissue

A

type of tissue that is capable of contracting and generating tension in response to stimulation; produces movement

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13
Q

nervous tissue

A

type of tissue that is capable of sending and receiving impulses through electrochemical signals

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14
Q

serous membrane

A

type of tissue membrane that lines body cavities and lubricates them with serous fluid

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15
Q

synovial membrane

A

connective tissue membrane that lines the cavities of freely movable joints, producing synovial fluid for lubrication

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16
Q

tissue

A

group of cells that are similar in form and perform related functions

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17
Q

tissue membrane

A

thin layer or sheet of cells that covers the outside of the body, organs, and internal cavities

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18
Q

totipotent

A

embryonic cells that have the ability to differentiate into any type of cell and organ in the body

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19
Q

gland

A

structure made up of one or more cells modified to synthesize and secrete chemical substances

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20
Q

anchoring junction

A

mechanically attaches adjacent cells to each other or to the basement membrane

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21
Q

apical

A

that part of a cell or tissue which, in general, faces an open space

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22
Q

apocrine secretion

A

release of a substance along with the apical portion of the cell

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23
Q

basal lamina

A

thin extracellular layer that lies underneath epithelial cells and separates them from other tissues

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24
Q

basement membrane

A

in epithelial tissue, a thin layer of fibrous material that anchors the epithelial tissue to the underlying connective tissue; made up of the basal lamina and reticular lamina

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25
Q

cell junction

A

point of cell-to-cell contact that connects one cell to another in a tissue

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26
Q

endocrine gland

A

groups of cells that release chemical signals into the intercellular fluid to be picked up and transported to their target organs by blood

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27
Q

endothelium

A

tissue that lines vessels of the lymphatic and cardiovascular system, made up of a simple squamous epithelium

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28
Q

exocrine gland

A

group of epithelial cells that secrete substances through ducts that open to the skin or to internal body surfaces that lead to the exterior of the body

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29
Q

gap junction

A

allows cytoplasmic communications to occur between cells

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30
Q

goblet cell

A

unicellular gland found in columnar epithelium that secretes mucous

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31
Q

holocrine secretion

A

release of a substance caused by the rupture of a gland cell, which becomes part of the secretion

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32
Q

merocrine secretion

A

release of a substance from a gland via exocytosis

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33
Q

mesothelium

A

simple squamous epithelial tissue which covers the major body cavities and is the epithelial portion of serous membranes

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34
Q

mucous gland

A

group of cells that secrete mucous, a thick, slippery substance that keeps tissues moist and acts as a lubricant

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35
Q

pseudostratified columnar epithelium

A

tissue that consists of a single layer of irregularly shaped and sized cells that give the appearance of multiple layers; found in ducts of certain glands and the upper respiratory tract

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36
Q

reticular lamina

A

matrix containing collagen and elastin secreted by connective tissue; a component of the basement membrane

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37
Q

serous gland

A

group of cells within the serous membrane that secrete a lubricating substance onto the surface

38
Q

simple columnar epithelium

A

tissue that consists of a single layer of column-like cells; promotes secretion and absorption in tissues and organs

39
Q

simple cuboidal epithelium

A

tissue that consists of a single layer of cube-shaped cells; promotes secretion and absorption in ducts and tubules

40
Q

simple squamous epithelium

A

tissue that consists of a single layer of flat scale-like cells; promotes diffusion and filtration across surface

41
Q

stratified columnar epithelium

A

tissue that consists of two or more layers of column-like cells, contains glands and is found in some ducts

42
Q

stratified cuboidal epithelium

A

tissue that consists of two or more layers of cube-shaped cells, found in some ducts

43
Q

stratified squamous epithelium

A

tissue that consists of multiple layers of cells with the most apical being flat scale-like cells; protects surfaces from abrasion

44
Q

tight junction

A

forms an impermeable barrier between cells

45
Q

transitional epithelium

A

form of stratified epithelium found in the urinary tract, characterized by an apical layer of cells that change shape in response to the presence of urine

46
Q

adipocytes

A

lipid storage cells

47
Q

adipose tissue

A

specialized areolar tissue rich in stored fat

48
Q

areolar tissue

A

(also, loose connective tissue) a type of connective tissue proper that shows little specialization with cells dispersed in the matrix

49
Q

chondrocytes

A

cells of the cartilage

50
Q

collagen fiber

A

flexible fibrous proteins that give connective tissue tensile strength

51
Q

connective tissue proper

A

connective tissue containing a viscous matrix, fibers, and cells

52
Q

dense connective tissue

A

connective tissue proper that contains many fibers that provide both elasticity and protection

53
Q

elastic cartilage

A

type of cartilage, with elastin as the major protein, characterized by rigid support as well as elasticity

54
Q

elastic fiber

A

fibrous protein within connective tissue that contains a high percentage of the protein elastin that allows the fibers to stretch and return to original size

55
Q

fibroblast

A

most abundant cell type in connective tissue, secretes protein fibers and matrix into the extracellular space

56
Q

fibrocartilage

A

tough form of cartilage, made of thick bundles of collagen fibers embedded in chondroitin sulfate ground substance

57
Q

fibrocyte

A

less active form of fibroblast

58
Q

fluid connective tissue

A

specialized cells that circulate in a watery fluid containing salts, nutrients, and dissolved proteins

59
Q

ground substance

A

fluid or semi-fluid portion of the matrix

60
Q

hyaline cartilage

A

most common type of cartilage, smooth and made of short collagen fibers embedded in a chondroitin sulfate ground substance

61
Q

lacunae

A

(singular = lacuna) small spaces in bone or cartilage tissue that cells occupy

62
Q

loose connective tissue

A

(also, areolar tissue) type of connective tissue proper that shows little specialization with cells dispersed in the matrix

63
Q

matrix

A

extracellular material which is produced by the cells embedded in it, containing ground substance and fibers

64
Q

mesenchymal cell

A

adult stem cell from which most connective tissue cells are derived

65
Q

mesenchyme

A

embryonic tissue from which connective tissue cells derive

66
Q

mucous connective tissue

A

specialized loose connective tissue present in the umbilical cord

67
Q

parenchyma

A

functional cells of a gland or organ, in contrast with the supportive or connective tissue of a gland or organ

68
Q

reticular fiber

A

fine fibrous protein, made of collagen subunits, which cross-link to form supporting “nets” within connective tissue

69
Q

reticular tissue

A

type of loose connective tissue that provides a supportive framework to soft organs, such as lymphatic tissue, spleen, and the liver

70
Q

supportive connective tissue

A

type of connective tissue that provides strength to the body and protects soft tissue

71
Q

cardiac muscle

A

heart muscle, under involuntary control, composed of striated cells that attach to form fibers, each cell contains a single nucleus, contracts autonomously

72
Q

myocyte

A

muscle cells

73
Q

skeletal muscle

A

usually attached to bone, under voluntary control, each cell is a fiber that is multinucleated and striated

74
Q

smooth muscle

A

under involuntary control, moves internal organs, cells contain a single nucleus, are spindle-shaped, and do not appear striated; each cell is a fiber

75
Q

striation

A

alignment of parallel actin and myosin filaments which form a banded pattern

76
Q

astrocyte

A

star-shaped cell in the central nervous system that regulates ions and uptake and/or breakdown of some neurotransmitters and contributes to the formation of the blood-brain barrier

77
Q

myelin

A

layer of lipid inside some neuroglial cells that wraps around the axons of some neurons

78
Q

neuroglia

A

supportive neural cells

79
Q

neuron

A

excitable neural cell that transfer nerve impulses

80
Q

oligodendrocyte

A

neuroglial cell that produces myelin in the brain

81
Q

Schwann cell

A

neuroglial cell that produces myelin in the peripheral nervous system

82
Q

apoptosis

A

programmed cell death

83
Q

atrophy

A

loss of mass and function

84
Q

clotting

A

also called coagulation; complex process by which blood components form a plug to stop bleeding

85
Q

histamine

A

chemical compound released by mast cells in response to injury that causes vasodilation and endothelium permeability

86
Q

inflammation

A

response of tissue to injury

87
Q

necrosis

A

accidental death of cells and tissues

88
Q

primary union

A

edges of a wound are close enough together to promote healing without the use of stitches to hold them close

89
Q

secondary union

A

wound healing facilitated by wound contraction

90
Q

vasodilation

A

widening of blood vessels

91
Q

wound contraction

A

process whereby the borders of a wound are physically drawn together