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A&P1 Lecture Exam 2 > integumentary system-hair > Flashcards

integumentary system-hair Flashcards

1
Q

The human body is covered with hair, except:

A
  • Palms, Soles, Lips, Portions of external genitalia
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2
Q
  • Functions of Hair
A
  • Protects and insulates
  • Guards openings against particles and insects
  • Is sensitive to very light touch
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3
Q
  • Located deep in dermis
  • Produces nonliving hairs
  • Wrapped in a dense connective tissue sheath
  • Base is surrounded by sensory nerves (root hair plexus)
A
  • The Hair Follicle
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4
Q
  • Base is surrounded by sensory nerves or
A

root hair plexus

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5
Q

Accessory Structures of Hair

A

-Arrector pili muscle
-Sebaceous glands

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6
Q
  • Involuntary smooth muscle connected to the hair root
  • Causes hairs to stand up
  • Produces “goose bumps
A

Arrector pili muscle

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7
Q
  • Secrete Sebum (oily secretion)
  • Lubricate the hair
  • Control bacteria
A
  • Sebaceous glands
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8
Q

Regions of the Hair

A
  • Hair root
  • Hair shaft
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9
Q
  • Lower part of the hair beneath surface
  • Anchors hair
A

Hair root

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10
Q
  • Part of the hair that extends past the surface
    (exposed)
    *Not attached to the integument
A

Hair shaft

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11
Q
  • Begins at the base of a hair, deep in the dermis
  • The hair papilla contains capillaries
  • The hair bulb produces hair matrix
A

Hair production

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12
Q

contains capillaries

A

hair papilla

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13
Q

-produces hair matrix
-A layer of dividing basal cells
- Produces hair structure
-Pushes hair up and out of skin

A

hair bulb

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14
Q

Types of Hairs

A
  • Vellus hairs
  • Terminal hairs
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15
Q

type of hair
* Soft, fine
* Cover body surface

A
  • Vellus hairs
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16
Q

Types of Hair
* Thick, May be heavily pigmented
* Head, eyebrows, and eyelashes
* Other parts of body after puberty

A
  • Terminal hairs
17
Q
  • Produced by melanocytes near the
    hair papilla
  • Determined by genes
A
  • Hair Color
18
Q
  • Sebaceous Glands (oil glands)
  • Secrete sebum
A

Exocrine Glands in Skin

19
Q
  • Secrete sebum
A
  • Sebaceous Glands (oil glands)
20
Q

Two Types of Sweat Glands (Sudoriferous glands)

A
  1. Apocrine glands
  2. Merocrine (eccrine) glands
21
Q

Sweat Glands or

A

Sudoriferous glands

22
Q

Watery secretions what gland

A

Merocrine (eccrine) glands

23
Q

Types of Sebaceous Glands

A
  • Simple branched alveolar glands
  • Sebaceous follicles
24
Q
  • Associated with hair follicles
A
  • Simple branched alveolar glands
25
Q
  • Discharge directly onto skin surface
    -Sebum
  • Contains lipids and other ingredients
    -Lubricates and protects the epidermis
  • Inhibits bacteria
A
  • Sebaceous follicles
26
Q
  • Contains lipids and other ingredients
  • Lubricates and protects the epidermis
  • Inhibits bacteria
A
  • Sebum
27
Q
  • Found in armpits, around nipples, and groin
  • Secrete products into hair follicles
  • Produce sticky, cloudy secretions that break down and cause odors
  • Become active at puberty
  • Surrounded by myoepithelial cells
A

Apocrine Sweat Glands

28
Q
  • Squeeze apocrine gland secretions towards hair follicle
  • In response to hormonal or nervous signa
A

myoepithelial cells

29
Q
  • Widely distributed on body surface especially on palms and soles
  • Smaller, coiled, tubular glands that discharge directly onto skin surface
  • Active from birth
  • Sensible perspiration
  • Secretion contain water, salts, and organic compounds (peptide with antibacterial
    properties)
A

Merocrine (Eccrine) Sweat Glands

30
Q

Functions of merocrine sweat gland activity

A
  • Cools skin
  • Excretes water and electrolytes
  • Flushes microorganisms and harmful chemicals from skin
31
Q

Other Integumentary Glands

A
  1. Mammary glands
  2. Ceruminous glands
32
Q

-Covered in reproductive system)
- Produce milk

A
  1. Mammary glands
33
Q
  • Produce cerumen (earwax)
  • Protect the eardrum
A

Ceruminous glands

34
Q

earwax

A

cerumen
* Protect the eardrum

35
Q
A

A&P1 Lecture Exam 2 (3 decks)

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