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El-103/106

Integumentary System/Biology of Hair Growth-HI

QuestionAnswer
When selecting a needle size, how do you determine which needle thickness to use? The needle should be the same thickness as the hair
What is the innermost layer of the hair that is composed of round cells and found only in terminal hairs?(not found in vellus hairs) Medulla
This is the 2nd layer of hair and is composed of elongated cells that gives the hair strength and elasticity. Cortex
This is the outer most layer of hair that consist of hard, flattened, horny scales which overlap one another. This layer helps protect the hair and anchors the hair into the follicle. Hair Cuticle
Name the three layers of the hair. 1.) Medulla 2.) Cortex 3.) Cuticle
This hair is deep-seated, coarse and can be found on the scalp, arms, under arms, legs, groin and on the face, chest and back of men. Terminal hair
Name the 7 functions of the skin. 1.) Protection 2.) Heat regulation 3.) Respiration 4.) Absorption 5.) Sensation 6.) Elimination 7.) Vitamin D Synthesis
What are the motor nerve fibers in the skin attached to? The hair follicles
What detects heat, cold, touch, pressure and pain? Sensory nerve fibers
Which glands serve to eliminate waste and help control body temperature? Sudoriferous glands (sweat glands)
Name the two types of sweat glands. 1.) Eccrine 2.) Apocrine
This sweat gland opens onto the surface of the skin and can be found all over the body, especially the palms of hands and soles of feet. It secretes mainly water and waste and plays an important role in heat regulation. Eccrine gland
This sweat gland opens into follicles and can be found in the axilla and genital area. It secretes a milky/fatty substance that has a foul odor once mixed with bacteria on the skin. It is also thought to excrete pheromones. Apocrine gland
This gland opens into the follicle or pore and secretes a substance called sebum. Vellus hair always begins its growth from this gland. Sebaceous gland (oil gland)
This is an oily substance that helps lubricate the skin and hair. It helps keep skin in tact and prevents the skin from losing moisture. Sebum (oil)
This is the study of hair. Trichology
Excess hair on the body such as arms, legs, chest and back. Hypertrichosis
Excessive hair growth on the face and body of a woman, that is characteristic of the male pattern hair growth. Only women can have this condition. Hirsutism
Name the three structures that make up the pilosebaceous unit. 1). Sebaceous gland 2.) Arrector pili muscle 3.) Hair/follicle/papilla
This is a small, involuntary muscle that is attached to the hair follicle and lifts the hair giving the appearance of "goose flesh" or "goose bumps". This muscle is involved with heat regulation. Arrector pili muscle
This is a thick, club shaped structure with an enlarged base forming the lower part of the hair root that encapsulates the papilla. Hair bulb
This is a cone shaped elevation located at the bottom of the hair that fits into the hair bulb. It consists of blood vessels and nerves that feed and nourish the hair. Papilla
Name the four types of hair. 1.) Lanugo 2.) Vellus 3.) Intermediate/accelerated vellus hair 4.) Terminal
This is soft, downy hair found all over the body on men, women and children. It is also called "peach fuzz". Vellus
Hair, arrector pili muscle, nails, sebaceous glands and sudoriferous glands are all examples of what? Appendages of the skin
Where does the skin and its appendages receive nourishment from? The blood vascular system
This is considered to be the largest organ of the body. The skin
What do you call the most superficial or outermost layer of the skin? Epidermis
Which type of keratin will you find in the skin? Soft keratin
Which type of keratin will you find in the nails and hair? Hard keratin
This is a protein substance that protects the skin and is found in the hair and epidermis of the skin. Keratin
Which layer of the skin is called "cuticle" or "scarf skin"? Epidermis
Name the 5 layers of the epidermis. 1.) Stratum Corneum 2.) Stratum Lucidum 3.) Stratum Granulosum 4.) Stratum Spinosum 5.) Statrum Germinativum (Stratum basale, basal layer)
This is the outermost layer of the epidermis and is constantly shedding and replacing itself. Stratum Corneum
This is the 2nd layer of the epidermis, found only in the palms of the hands and soles of the feet where skin is the thickest. (not found in thin skin) Stratum Lucidum
This is the 3rd layer of the epidermis, also called the granular layer, and consists of keratohyalin granules. Stratum Granulosum
This layer lies below the stratum granulosum and is also called the prickle cell layer. This layer contains Langerhan's cells. Stratum Spinosum
These cells are found in the stratum spinosum and provide an immunological protection and are considered to be the skin's first line of defense. Langerhan's cells
This is the 5th or bottom layer of the epidermis that contains melanocytes and where cell division takes place. Stratum Germinativum (stratum basale or basal layer)
These cells are found in the Stratum Germinativum of the Epidermis and the hair's matrix where they produce a substance called melanin. Melanocytes
This is pigment that gives color to hair, skin, and eyes while also protecting the skin against harmful UV rays. Melanin
This is a single cell layer that is found between the stratum spinosum and the stratum germinativum Stratum Mucosum
This layer is the combination of the stratum mucosum and the stratum germinativum. The malpighian layer
What are the three main layers of the skin? 1.) Epidermis 2.) Dermis 3.) Subcutaneous layer
What are the two layers that make up the dermis? 1.) Papillary layer 2.) Reticular layer
What do you call the skin layer that gives strength, form and flexibility? Dermis
"True skin", Derma, Corium, and Cutis Vera are all terms that refer to which layer of the skin? Dermis
This layer of the dermis is located directly underneath the epidermis and is made up of elastic, collagenous and reticular fibers that are cone shaped, finger like projections called papillae. Papillary layer
This layer of the dermis is considered to be the thickest layer and it is composed of dense bundles of collagen fibers, elastin fibers and connective tissue. Reticular layer
This layer lies below the dermis and is composed of fatty adipose tissue which acts as a cushion of the upper skin layers. Subcutaneous layer
Which function of the skin prevents damage from the sun or invasion of bacteria? Protection
Which function of the skin regulates body temperature? Heat regulation
Which function of the skin allows the transfer of small amounts of oxygen and carbon dioxide? Respiration
This body system refers to the structure of the human skin and consists of various layers and appendages. Integumentary system
What is the most important skin characteristic? Moisture content
Where are the most sensitive areas on the face, head, and body? Center lines
When a patient has a high pain threshold or are insensitive, it is easy to do what? Over treat follicle
When you tweeze an ingrown hair from an infected follicle, you can make the situation ____. Worse
Which function of the skin allows for penetration of certain topical products? Absorption
Which function of the skin allows the body to get rid of waste? Elimination
Which function of the skin allows you to detect, heat, cold and pain? Sensation
If your client has been recently tweezing, what growth stage will most of their hairs be in? Anagen
Which hairs are more deeply rooted and more difficult to epilate? Gray and red hairs
The degree of follicle curvature is related to what? The flatness of the hair
What do you call the microscopic study of tissues? (including the skin) Histology
What do you call something that is attached to an entity of great importance or size? Ex: sebaceous glands, sudoriferous glands, nails, hair, arrector pili muscle Appendage
Subcutis, adipose tissue, fatty tissue, sub dermis and hypodermis are all referring to which layer of the skin? Subcutaneous layer
What do you call the section of the hair that is visible above the skin's surface? Hair shaft
What do you call fine, downy hair that can be found on infants in utero or at birth. It is also called "fetal hair". Lanugo hair
What do you call hair that lies midway between the extremes of vellus and terminal hair? Also called "accelerated vellus hair". Intermediate hair
This is an indentation or extension of the epidermis. Hair follicle
The hair takes its shape, size and direction from what structure? Hair follicle
Hairs that are round in shape will have what kind of hair? Straight hair
Hairs that are oval in shape will have what kind of hair? Wavy hair
Hairs that are flat in shape will be what kind of hair? Curly/kinky hair
The "coarseness" or "fineness" of a hair is referring to what characteristic of the hair? Texture of the hair
What do you call a congenital condition in which the person has no color or pigment in their skin, hair, and eyes? Albinism
What is the average rate of hair growth on the body? 1/2 inch per month
The hair growth stages can be remembered by using which acronym? ACT
What do you call the hair's active growth phase? Anagen
What do you call the hair's transitional phase? Catagen
What do you call the hair's resting phase? Telogen
What do you call the lower section of the hair bulb where mitotic cells are found? Matrix
Where does cell division take place in the hair? Matrix
Which stage of terminal hair growth will have the deepest follicle? Advanced stage of Anagen
What is the technical term for the "advanced stage of Anagen"? Anagen-6
In which skin layer will you find blood vessels, oil glands, and sweat glands? Dermis
What is the primary purpose of hair? Protection and adorning the head
Which growth stage must your hair be in to determine how deep to insert your probe? Anagen (6)
When inserting the probe, should you insert above or below the hair? Below the hair
When your client complains of a "sticking" sensation while you are inserting your probe, you may have done what? Made an improper insertion
What must you do in the beginning of treatment to determine how deep you should be inserting your probe? Depth gauge/hair depth
Which natural hair color is the most deeply rooted and most difficult to epilate? Red hair
This is the thickest layer of the hair and this is where you will find melanin or pigment. Cortex
Which gland is not part of the pilosebaceous unit? Sudoriferous gland
What is another name for the Stratum Corneum? Horny layer
Where, on the body, is skin the thickest? Palm of hands and soles of feet
This layer gives contour to the body, protects against blunt trauma, and acts as an insulator. Adipose tissue
How many layers are in the Epidermis? 5
In what hair growth stage does the club hair begin to form? Catagen
Which hair growth stage is also called a club hair? Telogen
Created by: ElectricEsti