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Human Bio > Test 1: Tissues, Integument, Membranes > Flashcards

Test 1: Tissues, Integument, Membranes Flashcards

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Biology 101 flashcards
1
Q

Why the 6 functions of skin are important

A
  1. Secretion-
  2. Excretion- sweat is excreted through pores to help cool the body
  3. Temperature regulation-
  4. Absorption-
  5. Protection-
  6. Sensation-
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2
Q

5 layers of epidermis and 1 characteristic of each

A
  1. Stratum Corneum- dead cells flake off
  2. Stratum Lucidum- transparent
  3. Stratum Granulosum- where cells die
  4. Stratum Spinosum- irregular shaped cells
  5. Stratum Germinativum- contains melanocytes
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3
Q

Epidermis vs dermis

A

Epidermis: outer layer, thinner, stratified squamous, keratin
Dermis: inner layer, thicker, mostly connective tissue, lots of blood vessels, “wet sponge feel”

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4
Q

Papillary region vs reticular region

A

Papillary: Superficial region, next to epidermis, areolar tissue, papillae
Reticular: Deep, thick, dense irregular tissue, contains accessory organs, wrinkles

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5
Q

Keratin

A

Waterproof protein – s. Corneum, s. Lucidum

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6
Q

Lunula

A

White crescent shaped area at the proximal end of the nail

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7
Q

Cuticle

A

Flap of s. Corneum at base of nail

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8
Q

Hypodermic

A

Below the skin

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9
Q

Subcutaneous

A

Below the skin

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10
Q

Intracutaneous

A

Within the layers of skin

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11
Q

Diaphoresis

A

Profuse perspiration

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12
Q

Pore

A

Opening of a sweat gland

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13
Q

Simple

A

1 layer

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14
Q

Stratified

A

Multiple layers

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15
Q

Malignant

A

Threatening, cancerous

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16
Q

Benign

A

Non-threatening

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17
Q

Carcinogen

A

Cancer generator

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18
Q

Carcinogenisis

A

Start of a cancerous cell

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19
Q

Tumor

A

Excess tissue formed by unregulated cell growth

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20
Q

Tissue

A

Group of similar cells that share a common origin and perform a particular function; tissues join together to form organs

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21
Q

Exocrine gland

A

Secretes products that leave the body through ducts

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22
Q

Endocrine gland

A

Secretes products inside the body; ductless

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23
Q

Hemopoiesis

A

the production of blood cells in the red bone marrow

24
Q

Avascular

A

Lack of blood vessels

25
Q

Adipocyte

A

Cell that stores fat

26
Q

Metastasis

A

Spread of the primary malignant tumor

27
Q

Apocrine sweat gland

A

Underarm and genital area; hair follicles

28
Q

Eccrine sweat gland

A

Produces perspiration all over the body

29
Q

Sebaceous gland

A

Secretes oil into hair

30
Q

Cerumenous gland

A

Modified sweat glands that secrete wax

31
Q

Sebum

A

Oily secretions of the sebaceous glands

32
Q

Arrector pili muscle

A

Small muscles attached to hairs to create goosebumps

33
Q

Collagen

A

A protein that is abundant in connective tissue

34
Q

Fibroblasts

A

Cells that produce matrix

35
Q

Goblet cell

A

Secret cell forming mucins

36
Q

Friction ridges

A

Finger prints; bottom of feet and palms

37
Q

Cerumen

A

Ear wax

38
Q

Pavilion corpuscle

A

Deep in the layers of skin; senses vibrations and touch

39
Q

Ruffini corpuscle

A

Sensory end organs in the connective tissue of the fingers

40
Q

Pacinian corpuscle

A

Receptor for vibrations and touch

41
Q

Krause corpuscles

A

Any of numerous nerve endings in the skin and mucous membranes; sense cold

42
Q

Root hair plexuses

A

fiber endings that are sensitive to touch; knows when hair moves

43
Q

Merkel’s disc

A

Provide info on pressure and position: in basal epidermis

44
Q

Meissner’s corpuscles

A

Responsible for sensitivity to light touch; abundant in feet and hands

45
Q

Integument

A

A tougher protection layer

46
Q

Interstitial fluid

A

A portion of extracellular material that fills spaces between tissue

47
Q

Superficial fascia

A

Bottom layer; connects skin to muscle

48
Q

Squamous

A

Covered with scales

49
Q

Melanin

A

Pigment in skin

50
Q

Matrix

A

The intercellular material in connective tissue

51
Q

Porto-oncogenes

A

Normal gene that is mutated to contribute to cancer

52
Q

Suppressor genes

A

slow the process of cell division to fix mistakes

53
Q

Adduct

A

Move toward the midline of the body or toward another body part

54
Q

Neoplasm

A

Abnormal growth of tissue

55
Q

Membrane

A

A semi-permeable protective layer

56
Q

Papillae

A

Small nipple like part of the body

Human Bio (30 decks)

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