Anatomy

Question 1

Prickle cell layer because of the cells prickly shape
Living cells containing a nucleus

Answer 1

Stratum spinosum

Question 2

The layer in which mitosis takes place, melanocytes are located in this stratum

Answer 2

Stratum germinativum

Question 3

Ultraviolet rays from sunlight reacts with the amino acids tyrosine found in the melanocytes and produce melanin

Answer 3

Stratum germinativum

Question 4

This layer is only a single cell layer above the stratum germinativum
The stratum___ combined with the stratum germinativum is known as the malpighian layer

Answer 4

Stratum mucosum

Question 5

This layer gets its name from the transparent nature of the cells that contain eleidin, a clear substance

Answer 5

Stratum lucidum

Question 6

Also known as the granular layer, lies at the bottom of the horny zone
The lower cells have nuclei and are still living

Answer 6

St. Granulosum

Question 7

The outer most layer where skin cells constantly shed

Answer 7

St. Corneum

Question 8

Often called the living layer or “true skin”
Also divided into 2 layers called the papillary layer and reticular layer

Answer 8

The dermis

Question 9

Lies directly below the epidermis and is made of elastic collegenous
This layer also forms the connective tissue sheath around hair follicle

Answer 9

The papillary layer

Question 10

The thickest layer of the skin, this layer is composed of dense bundles of collagen fibers

Answer 10

The reticular layer

Question 11

Appendages of the reticular layer

Answer 11

Arrector pili muscle
Blood vessels
Fat cells
Hair follicle
Lymph vessels
Nerve ending
Sebaceous glands
Sudoriferous glads

Question 12

This sweat glands is under the control of the sympathetic nervous system
Found deep in the dermis & have tubular ducts extending all the way up to the pores of the epidermis

Answer 12

Sudoriferous glands

Question 13

This glad is found in the genitalia area & in axillae usually open into hair follicles
This gland is also believed to excrete pheromones

Answer 13

Apocrine gland

Question 14

This gland is found all over the body

Answer 14

Eccrine glands

Question 15

This gland is found all over the skin, secretes sebum,found in greater numbers on the scalp,T-zone

Answer 15

Sebaceous glands

Question 16

Carry’s impulses to the brain
Meissner corpuscles are responsible for touch

Answer 16

Nerve ending

Question 17

Also called the pilosebaceous unit

Answer 17

Hair

Question 18

At the base of the dermis is a layer of fatty tissue ___ layer, subcutis or adipose layer

Answer 18

The subcutaneous layer

Question 19

The outer root sheath of the canal is formed from what?

Answer 19

The basal cell layer

Question 20

The inner side of the follicle canal, which is made of horny epidermal tissue is called

Answer 20

The external root sheath

Question 21

The base of the follicular canal widens to the____

Answer 21

Hair follicle bulb

Question 22

The area where the hair grows contains the dividing cells of the hair matrix the produces the hair and the protective external and inner root sheath

Answer 22

The bulb

Question 23

The____ contains the blood supply needed for providing nutrients for growth as well as the hormones that stimulate hair growth

Answer 23

Papillae/ papilla

Question 24

This gland lubricates the hair, preventing it from breaking also prevents epidermis from drying and prevents bacteria and germs from interning the skin

Answer 24

Sebaceous glands

Question 25

3 layers of the hair

Answer 25

1. Cuticle 2. Cortex 3.medulla

Question 26

Outer most of the hair layer Composed of transparent cells that overlaps like scales Protects the inner layers of hair

Answer 26

The Cuticle

Question 27

The middle layer, Gives hair its strength and elasticity

Answer 27

The cortex

Question 28

The inner most of the hair Also called the pith or marrow

Answer 28

The medulla

Question 29

3 types of hair

Answer 29

1.lanugo 2.vellus 3.terminal

Question 30

Soft downy hair also called fetal hair Often sheds a few weeks after birth

Answer 30

Lanugo

Question 31

Often confused with lanugo Present thru adulthood, fine & short often called “peach fuzz” Women are believed to have 55% more then men

Answer 31

Vellus

Question 32

Longer coarser pigmented hair Found in groins and axillae

Answer 32

Terminal.

Question 33

3 stages of hair grown

Answer 33

1.growing (anagen) 2. Transitional (Catagen) 3.resting (telogen)

Question 34

The hair follicle is at its deepest The Hair matrix is active

Answer 34

Anagaen -the growing phase

Question 35

The hair follicle separates from the dermal papilla ,the follicle shrinks to about a third of its anagen size The shortest hair growth phase lasting only a few days up to a few weeks

Answer 35

Catagen- the transitional phase

Question 36

The follicle is one third it’s original anagen size, the base of the hair looks like a club( club hair)

Answer 36

Telogen- the resting phase

Question 37

The functions of the skin The body’s largest sensory organs

Answer 37

Protection Heat regulation Excretion Secretion Absorption Sensation Synthesis of vitamin D

Question 38

Unites of structure in protein that helps break down simple sugar and fats

Answer 38

Amino acids

Question 39

Hair that has lost its root structure and that ,when sheds from the follicle exhibits round shape

Answer 39

Club hair

Question 40

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

Answer 40

Connective tissue

Question 41

The act of exfoliating dead skin cells

Answer 41

Desquamation

Question 42

The process of widening or expanding

Answer 42

Dilation

Question 43

Clear lifeless matter deposited in the form of minutes keratohyalin granules in the protoplasm’s of living cells

Answer 43

Eleidin

Question 44

The tissue that forms a thin protective layer on bodily surfaces

Answer 44

Epithelial tissue

Question 45

The depression in the skin that houses the entire pilosebaceous unit

Answer 45

Follicular canal

Question 46

The skin and it’s necessary organs such as the sebaceous and sweat glands, sensory receptors,hair and nails

Answer 46

Integumentary system

Question 47

A skin layer made of the st. Mucosum and the st. Germaniativum

Answer 47

Malpighian

Question 48

Called found in the epidermis that warms against the invasion of microorganisms and responds to that invasion

Answer 48

Langerhans cells

Question 49

The most superficial layer of the dermis

Answer 49

Papillary layer

Question 50

A deep layer of the dermis so posed of dense bundles of collagen fibers contains vessels glands nerve ending and follicles

Answer 50

Reticular layer

Question 51

Layers of tissue that lack blood vessel acts as a surface barrier

Answer 51

Stratified epithelium

Question 52

An amino acid present in melanocytes

Answer 52

Tyrosine

Question 53

Over growth of tissue ,increase in number of cells

Answer 53

OMA