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BN507 Human Body Systems > Tissue module 4 > Flashcards

Tissue module 4 Flashcards

1
Q

Types of tissue

A

Nervous
muscle
Epithelial
Connective

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2
Q

Nervous

A

Internal communication being brain, spinal cord and nerves.

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3
Q

Muscle

A

contracts to cause movement, muscles attached to bones, muscles of heart, muscles of walls of hollow organs.

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4
Q

Epithelial

A

forms boundaries between different enviroments, protect, secretes, absorbs, filters. Lining of GI tract organs and other hollow organs, skin surface.

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5
Q

Connective

A

supports, protectx, binds other tissues together

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6
Q

Types of epithelium

A 
Squmous 
Cuboidal 
Columnar 
Transitional epithelium 
Pseudostratified epithelium
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7
Q

Endocrine glands

A

secrete hormones into the bloodstream.

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8
Q

exocrine glands

A

Secrete their substance to the external enviroment.

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9
Q

Merocrine glands

A

Secrete substances via exocytosis

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10
Q

Holocrine glands

A

Sebaceous (oil) glands

Secret substance via rupture of secretory cells

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11
Q

Two elements of connective tissue

A 
Cells 
Extracellular matrix (ECM)
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12
Q

ground substance

A

Unstructured material composed of the extracellular fluid which contains proteins, proteoglycans.

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13
Q

Fibers

A

Protein strand suspended within the ground substance that provides support. There are three types of fibers in connective tissue:

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14
Q

Collagen fibers

A

Extremely tough fibers providing tensile strength

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15
Q

Elastic fibers

A

rubber like fibers allowing stretch and recoil

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16
Q

Recticular fibers

A

delicate fibers that create a web like network to support cells smaller blood vessels or nerves.

17
Q

four types of connective tissue

A

Connective tissue proper
Fluid connective tissue (blood/toto and lymph)
Cartilage
Bone

18
Q

three types of loose connective tissue

A

Areolar
Adipose
Reticular

19
Q

Areolar

A

Widely distributed, supports epithelium, including glands, surrounds small blood vessels and nerves and forms a part of the subcutaneous tissue.

20
Q

Adipose

A

Composed of adipose cells in little extracellular matrix. Provide insulation around the kidneys, eyeballs, heart, abdomen and hips.

21
Q

Reticular

A

Contains network of reticular fibers which support macrophages and fibroblasts. Found in liver, kidney, lymph nodes, spleen and bone marrow.

22
Q

Types of dense connective tissue

A

Regular
Irregular
Elastic

23
Q

Regular

A

Close packed bundles of collagen fibers arranged parallel to each other. Provides great resistance to unidirectional tension found in tendons, ligaments and fascia.

24
Q

Irregular

A

bundles of collagen in an irregular arrangement. Provides resistance to tension forces from all directions found in the dermis of the skin.

25
Q

Elastic

A

Contains vast amounts of elastic fibers which allow stretch and recoil. Found in a few ligaments, large blood vessels and bronchi.

26
Q

3 types of membrane

A

Cutaneous
Serous
Mucous

27
Q

Types of white blood cells

A 
Neutrophils
Eosinophils
T lymphocytes
Basophils
B lymphocytes
Monocytes
28
Q

Neutrophils

A

Phagocytize (digest and destroy) bacteria, some fungi and viruses

29
Q

Eosinophils

A

attack parasitic worms and involve allergic and asthmatic reactions

30
Q

T lymphocytes

A

attack and destroy viral infected body cells and tumor cells

31
Q

Basophils

A

stimulate vasodilation and attract other WBCs to areas of infection and inflammation.

32
Q

B lymphocytes

A

Produce antibodies which identify and mark foreign antigens for destruction

33
Q

Monocytes

A

Phagocytize infectious microbes, foreign antigens, cellular debris and dead cells.

34
Q

Pacemaker cells

A

pacemaker cells are muscle cells that can self-stimulate; that is, they can initiate their own electrical signal to pass to neighboring cells causing contraction

BN507 Human Body Systems (7 decks)

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