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43 Cards in this Set

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WHAT ARE THE TWO LAYERS IN THE DERMIS?
PAPILLARY AND RETICULAR LAYER
PAPILLARY LAYER
UPPER MOST LAYER,PRODUCES THE IRREGULAR SURFACE PATTERN IN THE SKIN; FINGER PRINTS, LINES OF CLEAVAGE
RETICULAR LAYER
DEEPER PROVIDES STRENGTH TO THE SKIN
HYPODERMIS/SUBCUTANEOUS
THIS LAYER IS DEEP TO THE DERMIS AND IS NOT ALWAYS CONSIDERED SEPERATE FROM THE DERMIS COMPOSED OF FAT. THIS LAYER PROVIDES INSULATION TO THE BODY, ENERGY RESERVE AND CUSHION PROTECTION. THIS LAYER COSISTS OF AREOLAR AND ADIPOSE TISSUE
LAMELLATED (PACINIAN) CORPUSCLES
NERVE ENDINGS THAT ARE SENSITIVE TO PRESSURE
EPIDERMIS
COPOSES OF KERATINIZED STRATIFIED SQUAMOUS EPITHELIUM. CONTAINS 4 PRINCIPAL TYPES OF CELLS: KERATINOCYTES,MELANOCYTES,LANGERHANS CELLS, AND MERKEL CELLS.
KERATINOCYTES
ABOUT 90% OF EPIDERMAL CELLS ARE KERATINOCYTES. THEARE ARRANGED IN 4 OR 5 LAYERS AND PRODUCE THE PROTEIN KERATIN.
KEATIN
TOUGH FIBROUS FROTEIN THAT HELPS PROTECT THE SKIN AND UNDERLYING TISSUES FROM HEAT, MOCROBES, AND CHEMICALS.
LAMELLAR GRANULES
KERATINOCYTES ALSO PRODUCE LAMELLAR GRANULES, WHICH RELEASE A WATER-REPELLENT SEALANT THAT DECREASES WATER ENTRY AND LOSS AND INHIBITS THE ENTRY OF FOREIGN MATERIALS
MELANOCYTES
ABBOUT 8% OF THE EPIDERMAL CELLS ARE MELANOCYTES, WHICH DEVELOP FROM THE ECTODERM OF A DEVELOPING EMBRYO AND PRODUCE THE PIGMENT MELANIN. THEY ARE PARTICULARLY SUSCEPTIBLE TO DAMAGE BY UV LIGHT
MELANIN
IS A YELLOW-RED OR BROWN-BLACK PIGMENT THAT CONTRIBUTES TO SKIN COLOR AND ABSORBS DAMAGING UV LIGHT
LANGERHANS CELL
ARISE FROM RED BONE MARROW AND MIGRATE TO THE EPIDERMIS, WHERE THE CONSITUTE A SMALL FRACTION OF THE EPIDERMAL CELLS. THE PARTICITPATE IN THE IMMUNE RESPOSES MOUNTED AGAINST MICROBES THAT INVADE THE SKIN, AND ARE EASILY DAMAGED BY UV LIGHT
MERKEL CELLS
ARE THE LEAST NUMEROUS OF THE EPIDERMAL CELL. THEY ARE LOCATED IN THE DEEPEST LAYER OF THE EPIDERMIS, WHERE THE CONTACT THE FLATTENED PROCESS OF A SENSORY NEURON THAT HELPS DETECT DIFFERENT ASPECTS OF TOUCH SENSATIONS
TACTILE (MERKEL) DISC
TOUCH RECEPTOR CONCENTRATED IN FINGER/HANDS,TOE/FEET,LIPS,ANAL SPHINCTER,VAGINA. DISCRIMINATE RECEPTOR
SENSORY RECEPTORS
MOST OF THE SENSORY RECEPTORS FOUND IN THE SKIN ARE CLASSIFIED AS EXTROCEPTORS-SENSING CHANGES IN THE EXPTERMAL ENVIRONMENT
THERMORECEPTOR
CHANGES IN TEMPERATURE
NOCIEPTOR
PAIN RECEPTOR
TACTILE RECEPTORS
TOUCH/GRASPING RECEPTOR
SPECIAL SENSE
EYES
FREE NERVE ENDINGS
PAIN AND TEPERATURE NO SPECIFIC AREA OF CONCENTRATION - EXCEPT PROTECTED AREAS - NAILS BEDS,LABIUM,ANUS
HAIR ROOT PLEXUS
PRESSURE TO HAIR; MOVEMENT ASSOCIATED W/ HAIR MAY BE USED FOR PAIN
MEISSNERS CORPUSALE
TOUCH RECPTOR CONCENTRATED IN THE FINGERS AND TOES; DISCRIMATE RECEPTOR
PACINIAN CORPUSALE
GRASPING RECEPTOR,FOUND IN HANDS AND FEET; A GENERAL/GROSS RECEPTOR;IMPORTANT FOR FEED BACK FOR MUSCLE CONTROL
RUFFINS CORPUSALE/KRANSES END BULB
BOTH ARE HIGHLY LOCALIZED IN THE EZTERNAL GENITALIA AND ANUS;THESE ARE PHASIC RECEPTORS
DISCRIMINATE RECEPTOR
REQUIRES VERY LITTLE STIMUALATION AND THE IMPULSE ARE PRECISELY INTERPRETTED
GROSS RECEPTOR
REQIRES MORE STIMULATION AND MAY NOT (OR MAY) BE PRECISELY INTERPRETTED
PHASIC RECEPTOR
BEGINS AS A DISCRIMINATE RECEPTOR BUT ADAPTED QUICKLY AND BECAME MORE OF A GROSS RECEPTOR
HAIR
PROTECTS THE SKIN FROM TRAUMA AND REDUCES SOME HEAT LOSS
SEBACCEOUS GLANDS
ASSOCIATED W/HAIR FOLICLE SELOUM LUBRICATES AND MOISTURIZES THE HAIR FOLICLE AND SURROUNDING THE SKIN. MANY BECOME IMPACTED AND INFECTED
SUDORIFEROUS GLANDS
SWEAT GLANDS; THE MOST COMMON GLAND IN THE SKIN;2 TYPES OF SECRETIONS ARE PRODUCED: INSNSIBLE PERSPIRATION AND SENSIBLE PERSPIRATION
INSENSIBLE PERSPIRATION
USED TO LUBRICATE AND MOISTURIZE THE SKIN;CONTINUALLY PRODUCED
SENSIBLE PERSPIRATION
USED TO COOL THE BODY DUE TO ENVIRONMENTAL OR EMOTIONAL STRESS
ECCRINE SWEAT GLANDS
THE MOST COMMON SWEAT GLAND; SIMPLE,COILED TUBULAR GLANDS;HIGHEST CONCENTRATION FOUND ON THE PALMS/FINGER TIPS,SOLES AND TOES;USED FOR LUBRICATION,COOLING AND MOISTURIZATION
APOCRINE SWEAT GLANDS
SIMPLE COILED TUBULAR GLANDS;DEVELOPS AT PUBERTY, LUBRICATES THE FOLDS OF THE BODY;FOUND MAINLY INT THE SKIN OF THE AXILLA (ARMPIT),GROIN,AREOLAE (PIGMIENTED AREAS AROUND THE NIPPLES)OF THE BREAST,AND BEARDED REGIONS OF THE FACE IN ADULT MALES
CERUMINOUS GLANDS
FOUND ONLY IN THE EAR. LUBRICATES AND MOISTURIZES THE INNER PORTION OF THE EAR CANAL AND THE TYPANUM (EARDRUM).PRODUCES WAXY SECRETION
CERUMEN
COMBINED SECRETION OF THE CERUMINOUS AND SEBACEOUS GLANDS AKA "EARWAX"
MAMMARY GLANDS
DEVELOP AT THE ONSET OF PUBERTY(FEMALES). THEY TYPICALLY BECOME FUNCTIONAL AT PREGNANCY AND REMAIN ACTIVE THROUGHOUT THE NURSING PERIOD
THERMOREGULATION
85% OF THE BODYS HEAT IS GENERATED BY SKELETAL MUSCLE ACTIVITY, THE HEAT IS DITRIBUTED BY THE BLOOD, THE SKIN ACTS AS BOTH RADIATOR FOR COOLING AND AN INSULATING LAYER FOR HEAT CONSERVATION;THE HOMEOSTATIC REGULATION OF BODY TEMPERATURE
HEAT LOSS IS MINIMIZED BY:
1. ADIPOSE LAYER-THICKNESS OF THE HYPODERMIS
2. VASCULAR CONSTRICTION-MINIMIZING BLOOD FLOW THROUGH THE SKIN
3. CONTRACTION OF THE ARRETOR PILI
4. CLOSURE OF THE SWEAT GLAND
THE EPIDEMAL LAYER THAT IS FOUND IN THICK SKIN BUT NOT IN THIN SKIN IS THE
STRATUM LUCIDUM
THE MOST COMMON SWEAT GLANDS THAT RELEASE A WATERY SECRETION ARE ___ SWEAT GLANDS
ECCRINE
MODIFIED SWEAT GLANDS IN THE EAR ARE ___ GLANDS
CERUMINOUS
SWEAT GLANDS LOCATED IN THE AXILLAE,GROIN,AREOLAE,AND BEARDS OF MALES AND THAT RELEASE A THICK,,LIP-RICH SECRETION ARE ___ SWEAT GLANDS
APOCRINE