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Biol 3715 Exam 3 > Integumentary System > Flashcards

Integumentary System Flashcards

1
Q

cover surfaces

lines body cavities

form protective sheets around organs

A

body membranes

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2
Q

Body membranes can be classified into:

A

Epithelial and Connective Membranes

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3
Q

Epithelial

A
  • cutaneous
  • mucous
  • serous
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4
Q

Connective

A

-Synovial

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5
Q

called skin, dry, exposed to air

A

Cutaneous

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6
Q

Cutaneous composed of 2 layers

A

Epidermis

Dermis

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7
Q

Epidermis

A

first line of defense

stratified squamous epithelium

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8
Q

Dermis

A

dense(fibrous) connective tissue

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9
Q

___composed of epithelium resting on a loose connective tissue membrane called___

A

Mucous

lamina propia

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10
Q

lines all the body cavities that open to the exterior

A

Mucous

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11
Q

mucosa refers to___

A

location

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12
Q

The epithelium of ____ is often adapted for ____ or ____.

A

mucosae

absorption
secretion

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13
Q

composed a layer of simple squamous epithelium resting on a thin layer of areolar connective tissue.

A

Serous (serosa)

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14
Q

___ line body cavities that are closed to the exterior

A

Serous

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15
Q

Serous occurs in two pairs:

A

parietal

visceral

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16
Q

lines a specific portion of the wall of the ventral body

A

parietal

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17
Q

covers the outside of the organs

A

visceral

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18
Q

Separates serous layers

A

serous fluid

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19
Q

abdominal cavities

A

peritoneum

20
Q

lungs

A

pleurae

21
Q

heart

A

pericardia

22
Q

composed of loose areolar connective tissue

line fibrous capsules surrounding joints

A

Synovial membranes

23
Q

Synovial membranes also line up:

A

bursar- small sacs of connective tissue

tendon sheaths

24
Q

Integumentary system includes:

A

skin, sweat glands, oil glands, hair and nails.

25
Q

Functions of Integumentary System (10)

A

Insulates and cushions the deeper body organs

protects from mechanical damage

protect thermal damage

protect chemical damage

protects from UV radiation

Synthesizes vitamin D

Prevents water loss (desiccation )

Aids in body heat lost or heat retention

Aids in excretion of urea

Bacteria damage

Has receptors that temperature, pain, touch, and presion

26
Q

Skin composed of two types of tissues:

A

Epidermis

Dermis

27
Q

essentially is adipose (fat) tissue

A

hypodermis (subcutaneous tissue)

28
Q

It is not considered part of the skin, but it does anchor the skin to underlying organs and provides a site for nutrient storage.

responsible for the curves that are more a part of a woman’s anatomy

A

Hypodermis

29
Q

Most cells of the epidermis are

A

keratinocytes

30
Q

keratinocytes

A

produce keratin ( fibrous protein)

31
Q

These kerat- inocytes are connected by ____through- out the epidermis

A

desmosomes

32
Q

The epidermis is composed of up to five layers:

A 
basale
spinosum
granulosum
lucidum 
corneum
33
Q

The deepest cell layer of the epidermis

lies closest
to the dermis and is connected to it along a wavy border that resembles corrugated cardboard.

A

basale

34
Q

Cells contain thick bundles of intermediate filaments made of pre-keratin.

A

spinosum

35
Q

they become flatter and increasingly keratinized.

Cells are flattened, organelles are deteriorating; cytoplasm full of granules.

A

granulosum

36
Q

Cells are dead, flat membranous sacs filled with keratin. Glycolipids in extracellular space make skin water resistant.

A

corneum

37
Q

It occurs only where the skin is hairless and extra thick, that is, on the palms of the hands and soles of the feet

A

lucidum

38
Q

melanocytes produce

A

melanin (pigment that gives hair and skin color)

39
Q

associated with fine touch and pressure

A

tactile discs

merkel cells

40
Q

associated with pain, itching and tickling

A

free nerve endings

41
Q

The connective tissue making up the dermis consists of two major regions

A

the papillary

reticular areas

42
Q

associates with epidermis through dermal papillae and epidermal ridges

loose connective tissue made up of fine collagen and elastic fibers

supports epidermis and regular body temperature

A

papillary layer

43
Q

deepest skin layer

contains dense irregular connective tissue, as well as blood vessels, sweat and oil glands, and deep pressure receptors called lamellar corpuscles.

A

reticular layer

44
Q

supports epidermis

  • provides oxygen and nutrients
  • maintains fluid balance.

Senses touch, pressure and vibrations

Meissners corpuscle
Lamellate corpuscle
Ruffini’s corpuscle

Regulates blood flow to skin

A

dermis functions

45
Q

Consists of adipocytes and fibroblasts

connects skin to underlying tissue

serves as energy reserve

A

Hypodermis

Biol 3715 Exam 3 (7 decks)

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