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Electrology > Anatomy & Physiology > Flashcards

Anatomy & Physiology Flashcards

1
Q

Anagen

A

The growth phase in the hair cycle in which a new hair is synthesized.

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2
Q

Apocrine

A

Glands in the axillae and groin that secrete sweat and substances that produce body odor when contaminated with bacteria

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3
Q

Axillae

A

Armpits

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4
Q

Basal zone

A

Live layer of dividing cells that continuously change and push upward

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5
Q

Catagen

A

The transition stage of the hair growth cycle. The period between the growth and resting phases.

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6
Q

Club hair

A

Hair that has lost its root structure and that when she’s from the follicle, exhibits a round shape

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7
Q

Collegenous

A

Fiber made of protein that gives skin its form and strength

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8
Q

Connective tissue

A

Fibrous tissue that binds, protects, cushions, and supports the various parts of the body

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9
Q

Constriction

A

Process of narrowing

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10
Q

Cortex

A

Middle layer of the hair. A fibrous protein core formed by elongated cells containing melanin

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11
Q

Cuticle

A

Outermost layer of hair consisting of one overlapping layer of transparent, scale-like cells

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12
Q

Dermal papilla

A

Small, cone shaped indentation at the base of the hair follicle that fits into the hair bulb. Also called the hair papilla

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13
Q

Dilation

A

Process of widening or expanding

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14
Q

Eccrine

A

Glands throughout the skin that excrete mainly water and salt

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15
Q

Eleidin

A

Clear, lifeless matter deposited in the form of minute keratohyalin granules in the protoplasm of living cells

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16
Q

Excretion

A

Act of discharging waste matter from tissues or organs

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17
Q

External root sheath

A

The inner side of the follicular canal which is made of horny epidermal tissue

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18
Q

Follicular canal

A

The depression in the skin that houses the entire pilosebaceous unit

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19
Q

Germinal zone

A

The layer of the skin where cells divide

20
Q

Hair follicle bulb

A

The bulbous base of the hair follicle that houses the dermal papilla

21
Q

Hair matrix

A

The germinating center of the hair follicle where mitotic activity occurs

22
Q

Horny zone

A

The outermost portion of the epidermis

23
Q

Medulla

A

The innermost layer of the hair. Composed of round cells. Often absent in fine hair

24
Q

Meissner’s corpuscles

A

Nerve endings in the skin that are sensitive to touch

25
Q

Melanocytes

A

Melanin forming cells

26
Q

Mitosis

A

The process by which a cell divide into two new daughter cells

27
Q

Pacinian’s corpuscles

A

Nerve endings found deep in the skin that are receptive to pressure

28
Q

Papillae

A

Cone shaped; fingerlike projections that protrude into the epidermis

29
Q

Pheromones

A

Chemicals produced by humans and other animals that, when secreted, influence other members of the same species

30
Q

Pilosebaceous unit

A

The entire hair appendage including the sebaceous gland and arrector pili muscle

31
Q

Secretion

A

The process of producing and discharging substances from glands

32
Q

Stratified epithelium

A

Layers of tissue that lack blood vessels. Acts as a surface barrier

33
Q

Stratum basale

A

Single layer that is the deepest layer of the epidermis

34
Q

Stratum corneum

A

Outermost layer of dead skin cells

35
Q

Stratum germinativum

A

The lower level of the epidermis where cell division occurs

36
Q

Stratum granulosum

A

The granular layer of skin found at the bottom of the horny zone

37
Q

Stratum lucidum

A

Clear, transparent layer of the epidermis. Found under the stratum corneum

38
Q

Stratum mucosum

A

Single cell layer of the epidermis found above the stratum germinativum

39
Q

Stratum spinosum

A

The superior layer of the stratum germinativum. Names for its shape and spiny, thorn like protrusions. Also known as the prickly cell layer

40
Q

Subcutaneous tissue

A

Fatty layer beneath the dermis that gives the body smoothness and contour. Also called adipose tissue. Contains fat as an energy source and acts as a protective cushion for the outer skin

41
Q

Subcutis

A

A layer of subcutaneous tissue

42
Q

Telogen

A

The resting phase of the hair follicle in its growth cycle

43
Q

Terminal hair

A

Hair found on the scalp, arms, legs, axillae, and pubic area (post puberty)

44
Q

Tyrosine

A

And amino acid present in melanocytes

45
Q

Vellus

A

Fine, short hair with no pigment. Found mainly on women’s faces. Also referred to as peach fuzz

46
Q

What system controls the sudoriferous glands?

A

The sympathetic nervous system

Electrology (8 decks)

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