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Med Careers > Connective Tissues > Flashcards

Connective Tissues Flashcards

1
Q

Collagen Fibers (White Fibers)

A

one of the strongest proteins made by the body; fibroblasts make them by protein synthesis; need Vitamin C and Cu to be strong

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2
Q

Reticular Fibers

A

tiny collagen fibers; look like spider webs holding tissues together; secreted by fibroblasts

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3
Q

Elastic Fibers (Yellow Fibers)

A

return to original position after being pulled or stretched unlike collagen fibers

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4
Q

Adipose Tissue

A

loose CT designed to store fat; found beneath skin, around joints, pads kidneys and other eternal organs

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5
Q

Bone Tissue

A

Osteocytes (bone cells) lie in lacunae and arranged in concentric circles

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6
Q

Cartilage

A

ridged CT providing supportive framework; lacks a vascular system causing slow healing times

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7
Q

Loose CT

A

thin membranes binding body parts together

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8
Q

Loose Areolar CT

A

contains fibroblast, collagen fibers, capillaries, mast cells, WBCs, Reticular fibers, and a matrix

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9
Q

Fibroblast

A

cells that create tissue (collagen)

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10
Q

Capillaries

A

the more room in the matrix = more blood vessels found

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11
Q

Mast Cells

A

type of WBC commonly found in CT; releases histamine or heparin

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12
Q

Matrix or IF

A

fluid filled space between cells

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13
Q

Blood

A

Characteristics -matrix is filled with fluid (plasma) -fibers are used for clotting -fibers stay inactive form and are activated when clotting is needed -more matrix than cells -made in red bone marrow by hemocytoblasts -contains erythrocytes(RBC), leucocytes(WBC), thrombocytes (platelets)

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14
Q

Adipose Tissue CT Proper

A

very vascular; rule breaker: has cellularity

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15
Q

Loose Reticular CT Proper

A

makes up framework of nonhallow organs (spleen, liver, lymph nodes); very vascular to filter lymph

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16
Q

Dense Irregular CT Proper

A

packed with fibers = less room for blood vessels (slow healing); strength in ALL directions Location: -periosteum, perichondrium, parinysium, epimysium, -blood vessels -GI tract

17
Q

Periosteum

A

around bone

18
Q

Perichondrium

A

around cartilage

19
Q

Epimysium and Perimysium

A

around muscle tissue

20
Q

Dense Regular CT Proper

A

not many blood vessels; strength in ONE direction Location: -tendons -ligaments -fiberous membranes

21
Q

Dense Elastic CT Proper

A

can form elastic ligaments that allow movement of vertebrae Location: -under transitional epithelium -walls of respiratory pathways -walls of blood vessels

22
Q

Cartilage CT

A

firm matrix due to peptidoglycan; avascular; cells (chondrocytes) must live in lacunae; no room for nerves

23
Q

Lacunae

A

pools that hold cells

24
Q

Hyaline Cartilage

A

toughest cartilage; wear/tear; white = loaded with collagen fibers Location: -ends of joints -nose -trachea -connects ribs to sternum

25
Q

Fibrocartilage

A

alternating rows of cells; matrix and fibers create a tissue that can absorb a lot of force (like a spring) Location -meniscus -intervertebral discs -pubic symphysis

26
Q

Elastic Cartilage

A

strong but elastic fibers allow it to go back to its original shape after bending Location -external ears -epiglottis

27
Q

Bone (osseus) CT

A

Characteristics -gel like matrix of the cartilage has Ca+ salts making it even harder-2 types: compact and spongy -very vascular (blood delivers nutrients in compact or houses red marrow in spongy) -large nerve supply -high amount of collagen fibers for strength -Osteoblasts, osteoclasts, osteocytes

28
Q

Osteoblasts

A

cells that secrete the matrix for bone formation

29
Q

Osteroclasts

A

absorbs bone tissue during growth and healing

30
Q

Osteocytes

A

bone cell made when osteoblasts become embedded in matrix they secreted

31
Q

Lamella

A

ring of cells

32
Q

Calalienli

A

tiny canals that carry nutrients from lacunae to another

33
Q

Haversion Canal (Central Canal)

A

carries blood vessels and nerves to the group of lamella belonging to that group

34
Q

Volkmann’s (Perforating Canal)

A

travel at right angles connecting osteons, periosteum

35
Q

Osteons

A

groups of lamellae (concentric)

36
Q
A

Bone Composition Diagram

Med Careers (8 decks)

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