RVT - Tissues of the body Flashcards Preview

RVT - Tissues of the body > RVT - Tissues of the body > Flashcards

Flashcards in RVT - Tissues of the body Deck (160)
Loading flashcards...
1
Q

What are the 4 main types of tissues?

A

Epithelial tissue
Connective tissue
Muscle Tissue
Nervous Tissue

2
Q

What does Apical surface refer to?

A

Facing lumen or outside of body

3
Q

What does Basal surface refer to?

A

Faces the Basal lamina and blood vessels

4
Q

What are junctional complexes?

A

The lateral surface that connects cell to cell

5
Q

What are the 4 main types of cell junction?

A

Tight
Desmosome
Gap
Adhering

6
Q

What is the layer of protein on top

of skin called?

A

Keratinized

7
Q

What is a tight junction and where in the

body might we find this junction?

A

Fusion of 2 cell membranes.

Found in the Bladder

8
Q

What is a desmosome junction and where

in the body would we find this?

A

Mechanical coupling formed by filaments
that interlock. Found in tissues that repeatedly
stretch.
Skin Heart Uterus

9
Q

What is a gap junction and where in the

body could it be found?

A

Tubular channel proteins that extend from
the cytoplasm of one cell to another.
Allows exchange of ions
Smooth muscle tissue heart epithelium

10
Q

What is an adhering junction and where

in the body would it be found?

A

Found just below tight junctions,
Structurally provide mechanical strength
Epithelium tissues heart

11
Q

What are hemidesmosomes?

A

They are junctions that allow a bit of stretching but adhere cell to base

12
Q

Where are simple squamous epithelium found?

A

Lungs
Kidney glomerulus
Capillaries

13
Q

Where are simple cuboidal epithelium

found?

A

Small excretory ducts
Lines kidney tubules
Ovaries

14
Q

Where are simple columnar epithelium

found?

A

Stomach

Large and small Intestines

15
Q

Where are stratified squamous cells

found?

A

Mouth
Esophagus
Skin

16
Q

Where are stratified cuboidal

epithelium found?

A

Salivary glands

17
Q

Where are stratified columnar

epithelium found?

A

Found in some parts of respiratory, digestive and reproductive systems.

18
Q

Where are pseudostratified columnar epithelium found?

A

Trachea

19
Q

Where is transitional epithelium found?

A

Urinary Bladder

20
Q

What glands secrete hormones into the bloodstream and lymphatic system?

A

Endocrine?

21
Q

In the classification of exocrine glands, what does a simple duct refer to?

A

The main duct is unbranched

22
Q

In the classification of exocrine glands, what does a compound duct refer to?

A

The main duct is branched

23
Q

What are the 2 types of secretions produced by exocrine glands?

A

Serous

Mucous

24
Q

Which exocrine gland secretion is composed of glycoproteins?

A

Mucous secretions

25
Q

Which exocrine gland secretion is composed of a high concentration of enzymes?

A

Serous secretions

26
Q

Are serous exocrine secretions watery or thick and viscous?

A

Watery

27
Q

Which exocrine gland releases the entire contents of its cell?

A

Holocrine gland

the wHOLe thing

28
Q

Which exocrine gland releases its secretions through exocytosis?

A

Merocrine gland

( a mere amount)

29
Q

Which exocrine gland releases its secretions by releasing the top portion of the cell into the duct system?

A

Apocrine gland

APiece of the gland

30
Q

Holocrine glands release what type of secretion?

A

Thick, viscous

Composed of glycoproteinss

31
Q

Where in the body are simple tubular exocrine glands found?

A

Intestines

32
Q

Where in the body are simple branched tubular exocrine glands found?

A

Tongue

Stomach

33
Q

Where in the body are simple coiled tubular exocrine glands found?

A

Sweat glands

34
Q

Where in the body are simple branched alveolar exocrine glands found?

A

Sebaceous glands

35
Q

Where in the body are Compound tubular exocrine glands found?

A

Mucous glands in the mouth

Testes

36
Q

Where in the body are compound tubuloalveolar exocrine glands found?

A

Pancreas
Glands of respiratory passages
Salivary glands of mouth

37
Q

Where in the body are compound alveolar exocrine glands found?

A

Mammary glands

38
Q

What are the 4 types of connective tissue?

A

Connective tissue proper
Cartilage
Bone
Blood

39
Q

What are the 2 subdivisions of connective tissue proper

A

Loose ( areolar, Adipose, Reticular)

Dense ( Regular, Irregular, Elastic)

40
Q

What are the 3 loose connective tissues?

A

Areolar
Adipose
Reticular

41
Q

Where in the body would we find areolar tissue?

A

Subcutaneous layer of skin

42
Q

What is the predominate cell in areolar tissue?

A

Fibroblast

43
Q

Where in the body would we find Adipose tissue?

A

Found under skin and around most organs

44
Q

What is the predominate cell in adipose tissues?

A

Adipocytes

45
Q

Where in the body would we find reticular tissues?

A

Bone Marrow

Around the liver, kidneys, spleen and lymph nodes

46
Q

What is the predominate cell found in reticular tissue?

A

Reticular cells = a type of fibroblast

47
Q

What are the 3 types of Dense connective tissue?

A

Regular
Irregular
Elastic

48
Q

Do dense connective tissues heal quickly?

A

No. They are avascular so healing is slow.

49
Q

Where in the body do we find dense regular connective tissue?

A

Tendons
Ligaments
Fascial sheets that cover muscles

50
Q

What is the predominate cell in dense connective tissue?

A

Fibroblasts

51
Q

Where in the body would we find Dense Irregular connective tissue?

A

Forms tough capsule of joints
Found in dermis of the skin
Fibrous coverings of many organs

52
Q

Which connective tissue is composed primarily of collagen fibers arranged in thick bundles?

A

Dense irregular connective tissue

53
Q

Which connective tissue is composed of tightly packed PARALLEL collagen fibers?

A

Dense regular connective tissue

54
Q

Where in the body would we find elastic connective tissue?

A

Spaces between vertebrae

Areas of body that require stretching…walls of arteries, stomach, bladder, bronchi

55
Q

What are the 3 types of Cartilage?

A

Hyaline cartilage
Elastic cartilage
Fibrocartilage

56
Q

What is the most common type of cartilage found in the body and where is it found?

A
Hyaline -  
End of long bones ( joints)
Growth plates
tracheal rings
Where ribs connect to sternum
57
Q

Where in the body would we find elastic cartilage?

A

Epiglottis of the larynx

Pinnae of the ears

58
Q

Where in the body would we find fibrocartilage?

A

Between the discs of the vertebrae

meniscus of the knee join and TMJ

59
Q

Is cartilage vascular?

A

Nope

60
Q

Bone can be divided into 2 categories

A

Cortical bone - compact

Cancellous bone - spongy

61
Q

What are the primary cells in bones?

A

Osteoblasts
Osteoclasts
Osteocytes

62
Q

What cell can become inactive but reactivate as needed?

A

Osteocyte

63
Q

Are bones vascular or Avascular?

A

Vascular

64
Q

Which bone cell digest the matrix?

A

Osteoclast

65
Q

What substances make up the matrix of bones?

A

Organic collagen fibers

Inorganic calcium salts

66
Q

What are the major matrix producing cells in cartilage?

A

Chondrocytes

67
Q

In what connective tissue are the fibers tightly packed with very little ground substance present?

A

Dense connective tissue

68
Q

What makes up the matrix of blood?

A

Ground substance - plasma

Fibrous component - protein

69
Q

What 3 cells are present in blood?

A

Erythrocytes
Leukocytes
Thrombocytes

70
Q

What happens in the matrix of compact bone?

A

It becomes solidified/calcified

71
Q

What % of the blood is made up of Plasma?

A

55% ( 90% of that is water)

72
Q

What cell deliver oxygen and remove carbon dioxide?

A

Erythrocytes

73
Q

What is the average life span of a RBC?

A

120 days

74
Q

Which blood cell is responsible for releasing histamines?

A

Basophil

75
Q

Which blood cell is not fully mature?

A

Monocyte

76
Q

Which WBC is the most abundant making up 60-80% of wbc presence in the blood?

A

Neutrophil

77
Q

Which blood cell have ‘B’ cells that contain antibodies to kill cells that contain bacteria?

A

Lymphocyte

78
Q

Which sticky, non nucleated and irregularly shaped blood cell makes up 5-7% of our total blood volume?

A

Thrombocyte

79
Q

What are the 3 types of muscle tissue?

A

Skeletal
Cardiac
Smooth

80
Q

Where is smooth muscle found?

A

Make up walls of organs and blood vessels

81
Q

Which muscle tissue is non striated in appearance?

A

Smooth muscle

82
Q

Which muscle tissue is multi-nucleated?

A

Skeletal muscle

83
Q

Which muscles work involuntarily?

A

Heart

Smooth muscle

84
Q

What happens to the ‘z’ line when muscles contract?

A

Move closer together

85
Q

What 2 things are muscle tissue made up of?

A

Myosin

Actin

86
Q

What is the sarcomere?

A

A structural unit of a myofibril in striated muscle

87
Q

What happens to the sarcomere when the muscle relaxes?

A

The ‘z’ line moves out from the middle

88
Q

What are the 3 primary parts of nervous tissue?

A

Perikaryon
Dendrites
Axon

89
Q

What 2 cells are found in nervous tissue?

A

Neurons

neuroglia

90
Q

What is the space between the axon called?

A

Synapse

91
Q

What are the short cytoplasmic extensions that receive impulses in nervous tissue?

A

Dendrites

92
Q

What are the long, single extensions that conduct impulses away from the cell body

A

Axons

93
Q

Where is nervous tissue found in the body?

A

Brain
Spinal column
Peripheral nerves

94
Q

What is the longest cell found in the body?

A

Neuron

95
Q

What would cause an increase in temperature when inflammation occurs in a body?

A

Basophils releasing histamines

96
Q

What affect can inflammation have on nervous tissue?

A

Heat can kill neurons

97
Q

What does the presence of ‘pus’ indicate?

A

Dead wbc’s - when bacteria kills the wbc’s

98
Q

What cells are found in liver tissues?

A

Hepatocytes

99
Q

What cells are found lining the ‘Bowman’s capsule?’

A

Squamous epithelial cells

100
Q

What are the nerve ‘helper’ cells?

A

Neuroglials

101
Q

What is the difference between keratinized and non-keratinized epithelial tissue?

A

Keratinized epithelial cells are dead and lack a nucleus. Non- keratinized occur when surface epithelial cells are alive.

102
Q

Which epithelial tissue consists of several layers of cells which separate an open space from a basal lamina? The surface cells are flat while the basal cells are rounded, square or tall.

A

Transitional epithelium

103
Q

What cell/cells secrete a watery fluid?

A

Serous

104
Q

What cell produces mucous?

A

Goblet cell

105
Q

Most glands are multicellular. Only one important one is not…what cell is this?

A

Goblet cell

106
Q

An exocrine gland whose ducts branch is called what?

A

Compounded

107
Q

An exocrine gland whose secretory units are elongated is…..?

A

Tubular

108
Q

Which exocrine gland cell ruptures, spilling its contents into the duct?

A

Holocrine

109
Q

What fibrous proteins in connective tissues when stretched can snap back to their original shape?

A

Elastic

110
Q

What is the epithelial membrane that encloses the entire body?

A

Cutaneous membrane

111
Q

What are the membranes called that line the body cavities that are open to the exterior of the body?

A

Mucous membranes

112
Q

What are the double-layered epithelial membranes that line the unexposed body cavities, preventing friction between organs?

A

Serous membranes

113
Q

List 5 major functions of epithelium tissue and an example of each

A

Protection - skin covering body surface protects against bacterial infection
Absorption- Stomach and intestinal linings absorb nutrients
Filtration- In kidney tubules
Excretion - glands excrete sweat
Secretion- chemical enzymes releases into body

114
Q

On what basis are epithelial tissues classified?

A

Number of layers

Cell shape

115
Q

What MAJOR tissue type lines body cavities and covers the body’s external surfaces?

A

Epithelium

116
Q

What Major tissue type pumps blood, flushes urine out of the body and allows one to swing a bat?

A

Muscle tissue

117
Q

What major tissue type anchors, packages and supports body organs?

A

Connective tissue

118
Q

What major tissue type has cells that may absorb, excrete and fliter?

A

Epithelial tissues

119
Q

What major tissue type is most involved in regulating and controlling body functions?

A

Nervous tissue

120
Q

What major tissue type synthesizes hormones?

A

Epithelial tissue

121
Q

What major tissue type is the most durable tissue type?

A

Connective tissue

122
Q

What major tissue type is abundant with non-living extracellular matrix?

A

Connective tissue

123
Q

What major tissue type is the most widespread tissue in the body?

A

Connective tissue

124
Q

How does the function of stratified epithelium differ from the function of simple epithelium?

A

Simple is only one layer so it doesnt provide as much protection as stratified epithelium

125
Q

Stratified epithelium are named by the cell shape on which surface of the epithelial membrane?

A

Apical

126
Q

Where is ciliated epithelium found? What role does it play?

A

Can be found in the lining of the trachea and most of the upper respiratory tract. Moves mucous and debris away from lung tissue

127
Q

How do the endocrine and exocrine glands differ in structure and function?

A

Endocrine glands are ductless and function to release hormones into the extracellular fluid.
Exocrine have ducts and they secrete through the ducts to an epithelail surface.

128
Q

What epithelial cell type lines the esophogus?

A

Stratified squamous

129
Q

What epithelial cells line the stomach?

A

Simple columnar

130
Q

What epithelial cells line the colon?

A

Simple columnar

131
Q

What epithelial cells line the alveolar lining of the lungs?

A

Simple squamous

132
Q

What epithelial cells line the tubules of the kidneys?

A

Simple cuboidal

133
Q

What epithelial cells make up the epidermis of the skin?

A

Stratified squamous

134
Q

What epithelial cells line the bladder?

A

Transitional cells

135
Q

What epithelial cells form the thin serous membranes?

A

Simple squamous

136
Q

What are the general characteristics of connective tissue?

A

Rich supply of blood vessels
Composed of many cells
They have a great deal of non-cellular, non-living material between the cells of the connective tissue

137
Q

What functions are performed by connective tissues?

A

Protection
Support
Binding of tissues to the body

138
Q

What tissue connects bone to bone and muscles to bone?

A

Dense regular connective tissue

139
Q

What connective tissue acts as a storage depot for fat?

A

Adipose

140
Q

What tissue makes up the dermis of the skin?

A

Dense irregular connective tissue

141
Q

What tissue makes up the intervertebral discs?

A

Dense fibrocartilage tissue

142
Q

What tissue makes up the hip bone?

A

Osseus

143
Q

What tissue composes basement membranes: a soft packaging tissue with a jellylike matrix?

A

Areolar loose connective tissue

144
Q

What tissue forms the larynx, the costal cartilage of the ribs and the embryonic skeleton?

A

Hyaline cartilage

145
Q

What tissue provides a flexible framework for the external ear?

A

Elastic cartilage

146
Q

What tissue is a firm structurally amorphous matrix invaded with fibers: appears glassy and smooth?

A

Hyaline cartilage

147
Q

What tissue has a matrix hard owing to calcium salts: provides levers for muscles to act on?

A

Osseus

148
Q

What tissue insulates against heat loss?

A

Adipose loose connective tissue

149
Q

What tissue makes up the walls of the large arteries?

A

Elastic dense connective tissue

150
Q

What cell has a ‘signet ring’ appearence?

A

Adipocyte

151
Q

What 2 physiological characteristics are highly developed in neurons, nerve cells?

A

Irritability

Conductivity

152
Q

In what ways are neurons similar to other cells?

A

They contain a nucleus and the usual organelles

153
Q

How are neurons different from other cells?

A

Their cytoplasm is drawn out into long processes

154
Q

What muscle tissue is found attached to bone?

A

Skeletal muscle

155
Q

What tissue allows you to redirect your eyes?

A

Skeletal muscle

156
Q

What muscle tissue is found in the walls of the stomach, uterus and arteries?

A

Smooth muscle

157
Q

What muscle tissue contains spindle shaped cells?

A

Smooth

158
Q

What muscle tissue contains branching cylindrical cells?

A

Cardiac muscle

159
Q

What muscle tissue contains long, nonbranching cylindrical cells?

A

Skeletal muscle

160
Q

What muscle tissue has intercalated discs?

A

Cardiac muscle