Term
| What kind of cells produce keratin |
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Definition
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Term
| What is neuroextoderm derived? |
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Definition
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Term
| Where are melanocytes located? |
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Definition
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Term
| Langerhans cells function as what? |
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Definition
| APC's linking the intergumentary system system to immune system |
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Term
| Where are Langerhans located? |
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Definition
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Term
| Where are merkel cells located? |
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Definition
| mainly present in thick skin |
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Term
| What cells have been correlated to be part of difuse enteroendocrine system cells? |
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Definition
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Term
| Which skin cell has a sensory neuron |
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Definition
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Term
| what is lucidum present it |
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Definition
| Skin of fingertips, palms, and soles |
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Term
| Tyrosine helps to make what? |
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Definition
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Term
| What pigments contribute to skin color |
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Definition
| melanin, carotene, hemoglobin |
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Term
| Where is melanin produced? |
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Definition
| melanocytes, then migrates to keratinocytes |
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Term
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Definition
| ywllo to reddish-brown to black |
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Term
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Definition
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Term
| What colors are hemoglobin |
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Definition
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Term
| What are the appendages of the skin |
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Definition
| sweat glands, oil glands, hair and nail follicles, nails, |
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Term
| How long does it take keratinocytes to make it to the surface of the skin? |
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Definition
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Term
| What is the papillary region |
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Definition
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Term
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Definition
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Term
| What regions make up the dermis? |
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Definition
| Papillary (LACT) and Reticular Region (DICT) |
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Term
| What is encompassed in the epidermis? |
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Definition
| stratum corneum, granulosum, spinosum, basale |
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Term
Stratum Basale
Stem cells undergo division to produce what |
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Definition
Deepest layer
new keratinocytes, melanocytes, langerhans cells, and Merkel cells associated with tactile discs are scattered around keratinocytes |
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Term
| Stratum Spinosum include projections of waht? |
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Definition
| melanocytes and Langerhans |
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Term
| What Epidermal layer has cells that are bound together by keratin bundles? What are those keratin bundles called? |
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Definition
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Term
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Definition
| 3-5 rows of flattened keratinocytes in which organelles are beginning to degenerate. |
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Term
| Where is the protein keratohyalin and lamellar granules found |
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Definition
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Term
| What do lamellar granules do? |
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Definition
| release a lipid rich, water-repellent secretion |
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Term
| What does keratohyalin do? |
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Definition
| organized intermediate filaments into thick bundles |
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Term
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Definition
| present in fingerrips palms and soles |
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Term
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Definition
| Dead, flat keratinocyes that contain densely packed intermediate filaments, keratohyalin and lamellar granules |
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Term
| Skin pigmentation can be attributed to |
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Definition
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Term
| What do you find in the papillary region? |
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Definition
| Dermal papillae: meissner C, Nerve endings |
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Term
| What do you find in the reticular region? |
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Definition
| spaces: fat, hair follicles, nerve, S and S glands |
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Term
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Definition
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Term
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Definition
| Deep pressure and vibration |
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Term
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Definition
| sustained, deep pressure/stretching, torque |
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Term
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Definition
| light but constant or sustained touch |
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Term
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Definition
| fine touch, pain and temperature |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| stimulated by mechanical deformation of the receptor |
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Term
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Definition
| sense pain: Free nerve endings fall in this category |
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Term
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Definition
| pain receptors that depolarize when tissues are damaged |
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Term
| What are the stimuli of nociceptors |
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Definition
| heat, cold, pressure, or chemicals |
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Term
| What are the main neurotransmitters for nociceptors? |
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Definition
| Glutamate and substance P |
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Term
| Pain reduction depends on what? |
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Definition
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Term
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Definition
| regions where the sensory fibers from determined surface areas of the body are arranged |
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Term
| Receptors can be categorized based on: |
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Definition
| how they respond to a stimulus |
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Term
| Phasic receptors respond: |
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Definition
| With a burst of activity when a stimulus is first applied. Fast adapting |
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Term
| Phastic receptors are ___ acting |
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Definition
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Term
| What type of receptor (tonic or phasic) adapts to the stimulus |
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Definition
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Term
| What type of receptor (tonic or phasic) is slow adapting? |
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Definition
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Term
| What are examples of phasic receptors? |
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Definition
| smell, touch, temperature, pain, vibration |
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Term
| What are examples of tonic receptors |
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Definition
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Term
| What are the two types of sweat glands? |
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Definition
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Term
| Accrine glands are abundant where? |
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Definition
| palms, soles and forehead |
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Term
| Where are apocrine glands? |
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Definition
| axillary and anogenital areas |
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Term
| Sebaceous glands develop from what? |
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Definition
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Term
| Wher become active at puberty? |
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Definition
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Term
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Definition
| characterized by excessive sweating in several areas of the body but typically underarm |
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Term
|
Definition
| overexposure to UV radiation and frequent irritation of the skin |
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Term
| What are the three major types of skin cancer |
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Definition
| Basal cell, squamous and melanoma |
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Term
| What is the most common skin cancer? |
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Definition
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Term
| What is the most dangerous skin cancer |
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Definition
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Term
| What skin cancers can be treated surgically? |
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Definition
| Basal cell carcinoma, squamous cell carcinoma |
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Term
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Definition
| melanoma: asymmetry, border has indentations, color is black/brown, diameter is large than 6 mm |
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Term
| What skin cancer involved keratinocytes of stratum spinosum? |
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Definition
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Term
| What cancer is associated with stratum basale cells? |
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Definition
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Term
| What involves melanocytes? |
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Definition
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Term
| From adolescent to adult, _____ gland activity increases |
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Definition
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Term
| Increased risk of cancer is due to decreased numbers of what cells? |
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Definition
| melanocytes and dendritic cells |
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Term
| What skin cells are cutaneous? |
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Definition
| Meissner, pacinian, markels, ruffini's and free nerve endings |
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Term
| What cells start to function at puberty? |
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Definition
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Term
| What contrls comprehensive hormonal traits and reproductive processes such as the menstrual cycle? |
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Definition
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Term
| What do pherohormones do? |
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Definition
| such as androstenol and androstenone are refarded to the perception of the opposite sex and even certain hormonal changes |
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Term
| What type of sweat gland are independent structures? |
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Definition
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Term
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Definition
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Term
| What is the outermost layer of the skin? |
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Definition
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Term
| Stratum basale cells are also known as stratum _____ |
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Definition
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Term
| Keratinocytes exhibit short processes extending from _____ |
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Definition
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Term
| What layer is the most superior of the nonkeratinized part of the skin? |
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Definition
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Term
| What layer is usually seen in thick skin? |
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Definition
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Term
| What receptors are the simplest? |
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Definition
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Term
| What cells are encapsulated? |
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Definition
| pacinian, meissners, and ruffini's |
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Term
| How are sweat glands classified? |
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Definition
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Term
| Which sweat glands play a significant role in cooling down the body? |
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Definition
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