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Spring of 2012 > Tissues (Exam 1) > Flashcards

Tissues (Exam 1) Flashcards

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0
Q

Classification based on

A

Structure of the cell
Composition of non cellular substances that surround the cell
Cell function

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1
Q

4 types

A

Epithelial
Connective
Muscle
Nervous

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2
Q

Epithelial

A

Covers body surfaces and lines cavities
Forms some glands

Apical and basal surfaces

Functions: protection (skin), secretion (sweat glands), absorption (intestinal lining)

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3
Q

Apical surface

A

Exposed to the body exterior or to the cavity of an internal organ
Can have microvilli
Ca have cilia

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4
Q

Basal surface

A

Opposite apical
In contact with the structure that the tissue is covering or lining
Associated with a basement membrane

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5
Q

Basement membrane

A

Extra cellular material that is secreted by the epithelial cells

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6
Q

Simple tissue

A

One layer of cells

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7
Q

Stratified tissue

A

Multiple layers of cells

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8
Q

Types of connective tissue

A 
Loose (areolar, adipose)
Dense (regular, irregular)
Cartilage (hyaline, elastic, fibro-)
Bone (spongy/cancellous, compact)
Blood
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9
Q

All connective tissue is derived from the same embryonic tissue type

A

Mesenchyme

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10
Q

Extracellular matrix

A

Non living structural portion of tissue that surrounds and separates living cells

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11
Q

Collagen fibers

A

Tick fibrous protein
Extremely strong
Most abundant

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12
Q

Elastic fibers

A

Made of the protein elastin
Provides recoil ability

Skin, lungs, blood vessels

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13
Q

Reticular fibers

A

Thin fibrous protein
Forms a supportive network around lymphatic tissue

Spleen, lymph nodes

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14
Q

Loose/dense

A

Fibroblast, fibrocyte

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15
Q

Cartilage

A

Chondroblast, chondrocyte

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16
Q

Bone

A

Osteoblast, osteocytes

17
Q

Blood

A

Hemopoietic stem cell, rbc and WBC

18
Q

Areolar

A

Loose

Attaches to underlying tissues

19
Q

Adipose

A

Fat
Loose
Yellow- storage, insulation, protection
Brown- generates heat, especially in newborns

Armpits and neck

20
Q

Regular

A

Dense
Protein fibers are arranged din one direction (more strength)
Forms tendons

21
Q

Irregular

A

Dense
Protein fibers are arranged randomly
Found where stretch and flexibility are necessary (skin)

22
Q

Hyaline

A

Cartilage
Most abundant
found where support and flexibility are needed

Costal cartilage of the ribs
Nose
Trachea
Articulating surfaces

23
Q

Fibrocartilage

A

Cartilage
Made o flange collagen bundles
Fund in areas that withstand high pressure

Knee joint
Between vertebrae

24
Q

Elastic

A

Cartilage
Made of elastin and collagen
Found in areas that are rigid but flexible

External ears (pinna)

25
Q

Cancellous/spongy bone

A

Bone
Made of flat bony plates called trabeculae
Between trabeculae are large open spaces filled with bone marrow
Makes up the inner portion of most bones

26
Q

Compact bone

A

Bone
Made of bony layers called lamellae
Lamellae have no spaces between them
Outer covering of most bones

27
Q

Blood

A

Formed by Hemopoietic stem cells which are mostly in bone marrow
Made of plasma, rbc, WBC, and platelets
Transports things throughout the body

28
Q

Nervous tissue

A

Found in brain, spinal cord, and fibers extending from these areas
Controls body functions through electrical signals called action potentials

29
Q

Neurons/nerve cells

A

Actual conducting cells

Produce action potential

30
Q

Neuroglia

A

Non conducting support cells

Provide insulation and protection to neurons

31
Q

Muscle

A

Responsible for movement

Contracts/shortens in response to electrical signals

32
Q

Contraction is accomplished by the intersection of cellular contractile proteins called

A

Actin and myosin

33
Q

Striated

A

Visible microscopic bands of contractile proteins

34
Q

Smooth muscle

A

Bands are not visible

35
Q

Voluntary

A

Consciously controlled

36
Q

Involuntary

A

Unconsciously controlled

37
Q

Skeletal

A

Packages in connective tissue sheets that are attached to bone
Cells are multinucleate

Striated, voluntary

38
Q

Cardiac

A

Found only in the heart
Cells are mononucleate

Striated, involuntary

39
Q

Smooth

A

Found in the walls of hollow organs (small intestine, blood vessels)
Cells are mononucleate

Smooth, involuntary

Spring of 2012 (56 decks)

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