Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy and Physiology Lab Midterm > Lab 2 Review: Integumentary System > Flashcards

Lab 2 Review: Integumentary System Flashcards

1
Q

Polarity (re epithelia)

A

That epithelia have an apical surface, exposed to the body exterior (keritanized or not, ciliated or not), and basal surface, attached to a noncellular basal lamina made of glycoproteins and fine collagen fibers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

specialized contacts/cellularity (epithelia)

A

cells fit close together to form a continuous sheet; attached by lateral contacts like tight junctions/desmosomes/gap junctions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

supported by connective tissue (epithelia)

A

epithelia rest on a basement membrane composed of mostly collagen fibers: reinforces epithelial sheet, helps to resist stretching and tearing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

function of simple squamous epithelia

A

easy diffusion and filtration of substances, secretion of lubricating substances in serosae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

location of simple squamous epithelia

A

kidney glomeruli, air sacs of lungs, lining of heart, blood vessels, and lymphatic vessels, lining of ventral body cavity (serosae)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

function of stratified squamous epithelia

A

protects underlying tissues in areas subject to abrasion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

location of stratified squamous epithelia

A

nonkeratinized: moist linings of the esophagus, mouth and vagina
keratinized: epidermis of skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

function of simple cuboidal epithelia

A

secretion and absorption

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

location of simple cuboidal epithelia

A

kidney tubules, ovary surface, ducts and secretory surfaces of small glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

function of simple columnar epithelia

A

absorption; secretion of mucus, enzymes and other substances; ciliated propels mucus or reproductive cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

location of simple columnar epithelia

A

nonconciliated: most of digestive tract, gall bladder, excretory ducts of some glands

ciliated: small bronchi, uterine tubes, some regions of uterus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

two major body cavities

A

dorsal and ventral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

serosa

A

a thin, double-layered epithelial membrane (simple squamous) that secretes and is filled with serous fluid
-lines the pleural cavities, pericardial cavity, and peritoneal cavity
-outer layer: parietal; inner layer: visceral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

outer layer of the serosa (lines internal body wall)

A

parietal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

inner layer of the serosa (covers the internal organs)

A

visceral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

three types of protection that the skin provides

A

chemical (low pH from sweat and sebum against bacteria; melanin against UV), physical (keratin and glycolipids against water entry and loss), and biological (immune system against pathogens)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

how does the integumentary system thermoregulate

A

dilation and constriction of blood vessels in skin; sweat

18
Q

types of cutaneous sensation and their corresponding sense receptors

A

-temp (thermoreceptors)
-touch (tactile/meissner’s corpuscles (dermis), merkel/tactile cells (epidermis) and hair follicle receptors)
-pressure (lamellar/pascinian corpuscle)
-pain (free nerve endings)

19
Q

metabolic functions of the integument

A

-synthesis of vit D precursor
-activate steroid hormones
-chemical conversion of carcinogens

20
Q

blood reservoir of integument

A

-holds 5% of blood in body
-shunts it to places that need it (metabolically active tissue like wounds)

21
Q

excretion of integument

A

excretion of salt and nitrogenous waste (sweat)

22
Q

two types of tissue repair

A

regeneration and fibrosis

23
Q

tissue regeneration

A

Repair of tissue injury by replacement of damaged or destroyed tissue with the same kind of tissue

24
Q

Fibrosis

A

Repair of tissue injury by replacement of damaged or destroyed tissue with scar tissue
*Fibrous connective tissue

25
Q

burns

A

-heat denatures proteins and causes cell death
-too much loss of fluid, containing proteins and electrolytes, can lead to renal shutdown and circulatory shock
-risk of infection

26
Q

first line therapy for severe burns

A

*IV fluid replacement
*Nutrient supplementation

27
Q

what’s a secondary risk of severe burns after shock, loss of fluids, etc.?

A

risk of infection

28
Q

epithelium: vascular or avascular?

A

avascular. vasculature is in the connective tissue, not in the epithelial cells

29
Q

function of pseudo-stratified columnar epithelium

A

secretion and (ciliated) propulsion of mucus

30
Q

location of pseudostratified columnar epithelium

A

non-ciliated: vas deferens and male urethra
ciliated: upper respiratory tract and trachea

31
Q

function of stratified cuboidal epithelia

A

(rare): secretion

32
Q

location of stratified cuboidal epithelia

A

Lines ducts of large glands
(i.e. sweat glands and
mammary glands)

33
Q

function of transitional epithelia

A

stretch

34
Q

location of transitional epithelia

A

Lines bladder, ureter
and part of the
urethra

35
Q

functions of the integument:

A

please buy me expensive cornell books
protection, body temp regulation, metabolic function, excretion, cutaneous sensation, blood reservoir

36
Q

layers of the epidermous

A

come lets get sun burned
corneum; lucidum; granulosum; spinosum; basale

37
Q

stratum corneum

A

*Most superficial layer
*Thick layer (20 – 30
rows) of dead cells
represented by flat
membranous sacs filled
with keratin
*Accounts for up to 3/4
of the epidermis
*Glycoproteins between
cells enable a water-
resistant layer

38
Q

stratum lucidum

A

*Thin layer (2 – 3 rows) of clear, flat,
dead keratinocytes
*Appears as a thin translucent band just
above the stratum granulosum
*Only present in thick skin

39
Q

Stratum Granulosum

A

*Thin layer (3 – 5 rows) of flattened cells
*Cells are undergoing keratinization in this
layer
-Causes cells to flatten and nuclei and organelles to
disintegrate

40
Q

Stratum Spinosum

A

*Several layers of keratinocytes
*Melanin granules and epidermal dendritic
cells are most abundant in this layer

41
Q

Stratum Basale

A

*Deepest epidermal layer
*Connected to the dermis
*Consists of a single row of
mostly mitotic stem cells that
give rise to keratinocytes
*10 – 25% of cells are
melanocytes
*Some tactile (Merkel) and
epidermal dendritic
(Langerhans) cells also found
here

Anatomy and Physiology Lab Midterm (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions