Podcast
Questions and Answers
Label the ______ and dermis on a skin structure model
Label the ______ and dermis on a skin structure model
epidermis
What is another word for hypodermis?
What is another word for hypodermis?
Superficial Fascia
Show the difference in the ______, hair follicle and hair follicle receptor (root hair plexus) on a skin structure model
Show the difference in the ______, hair follicle and hair follicle receptor (root hair plexus) on a skin structure model
hair root
Show the location of an ______ on a skin structure model
Show the location of an ______ on a skin structure model
Show the location of a ______ on a skin structure model
Show the location of a ______ on a skin structure model
Show the location of an ______ on a skin structure model
Show the location of an ______ on a skin structure model
Show the location of the ______ of dermis on a skin structure model
Show the location of the ______ of dermis on a skin structure model
Show the location of a ______ on a skin structure model
Show the location of a ______ on a skin structure model
Show the location of a ______ gland on a skin structure model
Show the location of a ______ gland on a skin structure model
Show the location of dermal ______ on a skin structure model
Show the location of dermal ______ on a skin structure model
What are the layers of skin?
What are the layers of skin?
What are the cells of the epidermis?
What are the cells of the epidermis?
What is the most abundant epidermal cell that functions mainly to produce keratin?
What is the most abundant epidermal cell that functions mainly to produce keratin?
What are spidery black cells that produce brown-black pigment melanin?
What are spidery black cells that produce brown-black pigment melanin?
What are epidermal dendritic cells involved in immunity called?
What are epidermal dendritic cells involved in immunity called?
What are occasional spiky hemispheres that form sensitive touch receptors called?
What are occasional spiky hemispheres that form sensitive touch receptors called?
Which layer is missing from thin skin that is present in thick skin?
Which layer is missing from thin skin that is present in thick skin?
What is another name for the stratum basale?
What is another name for the stratum basale?
What is the function of the stratum spinosum?
What is the function of the stratum spinosum?
What is the stratum granulosum known for?
What is the stratum granulosum known for?
What is the function of the stratum lucidum?
What is the function of the stratum lucidum?
What is another name for the stratum corneum?
What is another name for the stratum corneum?
What are the two principal regions of the dermis?
What are the two principal regions of the dermis?
What is the function of the papillary layer?
What is the function of the papillary layer?
What is the function of Meissner corpuscles?
What is the function of Meissner corpuscles?
What is the function of Pacinian corpuscles?
What is the function of Pacinian corpuscles?
What are the two categories of cutaneous glands?
What are the two categories of cutaneous glands?
Where are sebaceous glands found?
Where are sebaceous glands found?
What is sebum?
What is sebum?
What are blackheads a result of?
What are blackheads a result of?
What is another name for sweat glands?
What is another name for sweat glands?
What are pores?
What are pores?
What are the two types of sweat glands?
What are the two types of sweat glands?
What are the characteristics of eccrine glands?
What are the characteristics of eccrine glands?
What are the characteristics of apocrine glands?
What are the characteristics of apocrine glands?
What are phagocytic cells that occupy the dermis called?
What are phagocytic cells that occupy the dermis called?
What is a unique touch receptor formed from a stratum basale cell and a nerve fiber?
What is a unique touch receptor formed from a stratum basale cell and a nerve fiber?
List the sensory receptors found in the skin.
List the sensory receptors found in the skin.
What is the epithelial membrane?
What is the epithelial membrane?
What is the cutaneous membrane?
What is the cutaneous membrane?
What is the mucous membrane?
What is the mucous membrane?
Which type of mucosa contains goblet cells?
Which type of mucosa contains goblet cells?
What is the serous membrane?
What is the serous membrane?
What are synovial membranes?
What are synovial membranes?
Study Notes
Skin Structure and Layers
- Epidermis: The outer layer of skin, primarily composed of keratinocytes.
- Dermis: Located beneath the epidermis, it has two regions - papillary and reticular layers.
- Hypodermis: Also known as superficial fascia, it lies beneath the dermis and consists of loose connective tissue and fat.
Skin Cells
- Keratinocytes: Most abundant in the epidermis; produce keratin for protection and water retention.
- Melanocytes: Produce melanin, which protects against UV radiation and provides skin color.
- Langerhans Cells: Immune cells that help in fighting skin infections.
- Merkel Cells: Function as touch receptors, allowing sensation of light touch.
Skin Layers
- Stratum Basale (Germinativum): Deepest layer, continuously dividing to produce new cells.
- Stratum Spinosum: Thick and spiky layer, providing strength and flexibility.
- Stratum Granulosum: Contains granules for keratin production; marks the transition to dead cells.
- Stratum Lucidum: Present only in thick skin; proves an additional layer for protection.
- Stratum Corneum: Outermost layer composed of dead, keratinized cells that protect deeper layers.
Hair Structure
- Hair Root: Enclosed in the follicle, where growth occurs.
- Hair Shaft: Extends outside the skin surface.
- Hair Bulb: Contains germinal cells for hair growth and is nourished by the dermal papilla.
Sweat and Sebaceous Glands
- Sebaceous Glands: Produce sebum, keeping skin and hair moist; activate during puberty.
- Eccrine Sweat Glands: Widely distributed, secrete water-based sweat for temperature regulation.
- Apocrine Sweat Glands: Located in specific areas, secrete protein-rich sweat; associated with scent.
Sensory Receptors
- Meissner's Corpuscles: Detect light touch and pressure.
- Pacinian Corpuscles: Respond to deep pressure and vibration.
- Merkel Discs: Act as sensory receptors for light touch.
Special Structures
- Dermal Papillae: Projections that create fingerprints and increase the area of contact with the epidermis.
- Arrector Pili Muscle: Small muscles attached to hair follicles; contract to produce "goosebumps."
Nails
- Eponychium: Cuticle area of the nail.
- Nail Matrix: Growth area of the nail; produces new nail cells.
- Lanula: White crescent at the base of the nail, indicating the new keratinized cells.
Membranes
- Epithelial Membranes: Include cutaneous, mucous, and serous membranes, catering to different body functions.
- Synovial Membranes: Composed solely of connective tissue; provide lubrication in joints.
Skin Conditions
- Blackheads: Caused by dried sebum and debris in hair follicles.
- Acne: Result of active bacterial infection in sebaceous glands.
General Knowledge
- Carotene: A protein associated with skin color, found abundantly in the stratum corneum and hypodermis.
- Bronzing: A sign of Addison's Disease, indicating a hypoactive adrenal cortex.
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Description
Test your knowledge of skin structures with these anatomy flashcards. You'll label parts of the epidermis, dermis, hypodermis, and various components related to hair and sweat glands. Perfect for anyone studying human anatomy and physiology.
