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Sensation contains what

Contains sensory receptors such as Merkel cells.

What does a sebaceous oil gland secrete?

Sebaceous oil glands secrete sebum.

3. The papillary dermis accounts for ____ of the thickness of the dermis

20%

The reticular dermis accounts for _____ of the thickness of the dermis.

80%

Where would you find apocrine glands?

Apocrine sweat glands can be found in your armpits & genital areas.

What causes us to feel goosebumps?

Arrector pili muscles lift the hair on our skin which causes the feeling of goosebumps.

what produces earwax that helps provide a sticky barrier & waterproofs the ear.

Ceremonious Glands

These cells arise from bone marrow and migrate to the epidermis, they are the key activators of our immune system. What are they?

Dendritic Cells (langerhans)

1. List the two types of sudoriferous glands.

Eccrine sweat glands Apocrine sweat glands

Which sweat gland is responsible for thermoregulation and providing some immune function?

Eccrine sweat glands are responsible for thermoregulation and providing some immune function.

Where would you find Eccrine glands?

Eccrine sweat glands can be found on your skin surface, palm, forehead, and soles of your feet.

Excretion does what?

Elimination of wastes through sweat.

True or False: The stratum spinosum accounts for 75% of epidermal thickness

False

What region of the hair is the major part of the shaft?

Hair Cortex

Which portion of the hair creates a light touch sensation?

Hair root plexus

Blood Reservoir

Highly vascularized and can hold up to 5% of the body's blood volume.

2. List the 2 layers of the dermis & their tissue makeup.

Papillary dermis: consists of areolar connective tissue Reticular dermis: consists of dense irregular connective tissue

Protection & Immune Function does what?

Provides a physical and chemical barrier.

Body Temperature Regulation does what

Regulates body temp through sweat, hair, and changes in blood flow.

Metabolic Functions

Responsible for vitamin D precursor synthesis as well as enzymes.

What layer of the epidermis would you find stem cells of keratinocytes

Stratum Basale

5. What is the purpose of tactile epithelial cells?

Tactile epithelial cells provide us with the sensation of touch as each cell is intimately associated with a nerve ending.

2. What are keratinocytes?

They produce keratin which is the fibrous protein that gives the epidermis its protective properties.

5. True or False: Stratum Granulosum is known as the transitional layer with living and dead cells.

True

6. Fingerprints and footprints are what?

a. Epidermal ridges

How is melanin produced? What is the function of melanin?

a. Melanin is a pigment that is produced by melanocytes in the epidermis that provides skin with color.

1. What type of epithelium is concentrated in your epidermis?

a. Stratified Squamous Epithelium

4. Where would you find stratum lucidum?

a. Stratum Lucidum is found ONLY in thick skin.

3. List the 5 layers that make up the epidermis.

a. Stratum basale, Stratum Spinosum, Stratum, Granulosum, Stratum Corneum, & Stratum Lucidum.

5. Which nerve ending responds to light touch?

a. Tactile Corpuscles

1. What layer of the skin is deep to the epidermis?

a. The dermis is the layer of skin deep to the epidermis.

What region of hair is embedded in the skin?

a. The hair root.


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