exam 2: anatomy and physiology

45 cards

anatomy test chs 5-8


 
  
Created Oct 8, 2010
by
colds234

 

 
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1
organ system
 
a group of interacting organs forming a whole
2
skin
 
membranous tissue forming the external covering of a human and the epidermis and dermis
3
dermatology
 
the branch of medicine that is concerned with the physiology and pathology of the skin
4
excretion
 
the physiological processes of discharging waste
5
subcutaneous
 
located beneath skin, usually within the dermis

6
hypodermis
 
the layer of loose connective tissue containing fat cells below the dermis in many regions...
7
elasticity
 
flexibility

8
superficial fascia
 
sheet of irregular dense fibrous connective tissue separating the dermis from its muscles,...
9
vitamin D
 
fat-soluble vitamin; produced in skin by ultraviolent irradiation of sterols found in milk

10
epidermal derivative
 
any specialized structure of the epidermis including hair and hair follicles, nails, sweat...
11
epidermal ridges
 
unique patterns of epidermis which are located on the palms of the hands and soles of feet
-fingerprints

12
thermoregulation
 
maintenance of internal body temperature
13
primary germ layers
 
first three tissue types to differentiate in an early stage of embryonic development,
ectoderm,...
14
ectoderm
 
the outermost layer of an embryo
15
mesoderm
 
the middle layer of the embryo, lying between the ectoderm and the endoderm

16
endoderm
 
the innermost layer of an animal embryo
17
epidermis
 
the outer, protective layer of stratified squamous epithelium covering the dermis

18
keratinization
 
process of converting (hair, nails, horns..) into keratin
19
keratohyaline
 
the protein precursor to keratin which is the form of the protein in the stratum granulosum...
20
keratin
 
a tough, protein; helps protect the epidermis from abrasion and water loss
21
keratinocytes
 
vast majority of cells comprising of stratified squamous epithelium of the epidermis

22
melanocytes
 
small set of spider-shaped epidermal cells int he stratum germinativum (10-25% of the basale...
23
epidermal dendritic cell=Langerhans' cells
 
a star-shaped macrophage derived from the bone marrow

24
Merkel cell
 
an exteroreceptor located in the stratum germinativum of the epidermis; a small receptor
25
stratum basale=stratum germinativum
 
the basal layer of the stratified squamous epithelium of the epidermis, the youngest cells...
26
stratum spinosum
 
the second layer (from the bottom) of the stratified squamous epithelium of the epidermis,...
27
stratum granulosum
 
the third deepest layer(from the bottom) of the stratified squamous epithelium of the epidermis;...
28
stratum lucidum
 
the fourth deepest layer(from the bottom) of the stratified squamous epithelium of the epidermis,...
29
stratum corneum
 
the outer protective layer ("horny layer") of the stratified squamous epithelium of the epidermis,...
30
pili=hairs
 
an epidermal derivative produced by the hair follicle in the dermis of the skin
31
medulla
 
tthe interior of the hair shaft

32
cortex
 
the exterior of the hair shaft
33
hair follicle
 
the tubular infolding of the epidermis containing the root of the hair

34
bulb of the hair
 
the lower expanded section of the root of a hair which fits like a cap over the hair papilla
35
papilla of the hair
 
the small nipplelike projection or protuberance of areolar connective tissue at the base of...
36
arrector pili
 
short smooth muscle that extends from the side of a hair follicle on which the sebaceous gland...
37
root hair plexus
 
complex network of sensory nerve endings

38
nails
 
an epidermal derivative produced at the dorsal surface of the fingers and toes
39
dermis
 
the dense irregular fibrous connective tissue layer of the skin located below the epidermis,...
40
papillary region
 
20% of the dermis, consists areolar connective tissue
41
dermal papillae
 
series of bulges of the papillary region of the dermis of the skin

42
recticular region
 
80% of the dermis, consists of dense irregular connective tissue
43
corpuscles of touch
 
group of sensory receptors in the dermis, which respond to pressure or vibrations

44
tactile corpuscle=Meisner's corpuscle
 
in the dermal papillae; a small receptor surrounded by Schwann cells
45
lamellated corpuscle=Pacinian corpuscle
 
receptor scattered deep in the dermis; vibration



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