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BIO 201 > Lab 3 > Flashcards

Lab 3 Flashcards

1
Q

WHAT IS THE EPIDERMIS?

A

SKIN LAYER

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2
Q

WHAT CELL TYPES ARE IN THE EPIDERMIS?

A

KERATINOCYTES, MELANOCYTES, TACTILE (MERKEL) CELLS, DENDRITIC

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3
Q

WHAT IS THE FUNCTION OF KERATINOCYTES?

A

PRODUCE PROTECTIVE HARD, WATERPOOFING PROTEIN, KERATIN

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4
Q

WHAT IS THE FUNCTION OF MELANTOCYTES?

A

PRODUCE PROCTECTIVE PIGMENT, MELANIN

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5
Q

WHAT IS THE FUNCTION OF TACTILE CELLS?

A

LIGHT TOUCH RECEPTION

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6
Q

WHAT IS THE FUNCTION OF DENDRITIC CELLS?

A

SPECIALIZED WHITE BLOOD CELLS THAT ENGLUF AND DIGEST FOREIGN PARTICLES

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7
Q

WHAT IS THE FUNCTION OF STRATUM CORNEUM

A

MOST SUPERFICIAL EPIDMERNAL LAYER. MANY LAYERS OF DEAD CELLS CONTINUALLY SHED

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8
Q

WHAT IS THE FUNCTION OF STRTUM LUCIDUM?

A

A FEW LAYERS OF DEAD KERATINOCYTES

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9
Q

WHERE IS LUCIDUM NOT FOUND?

A

NOT FOUND IN THIN SKIN

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10
Q

WHAT IS THE FUNCTION OF STRATUM GRANULOSUM?

A

MANY LAYERS OF CELLS. CONTAINS KERATINOCYTES THAT FILL WITH KERATIN AND BEGIN TO DIE

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11
Q

WHAT IS THE FUNCTION OF STRATUM SPINOSUM?

A

MANY LAYERS OF CELLS. CONTAIN KERATINOCYTES AND DENDRITIC CELLS

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12
Q

WHAT IS THE FUNCTION OF STRATUM BASALE?

A

DEEPEST EPIDERMAL LAYER. SINGLE LAYER OF CELLS. CONTAINS KERATINOCYTES AND MEALNOCYTES

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13
Q

WHAT IS THE DERMIS?

A

DEEP LAYER OF SKIN

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14
Q

WHAT LAYERS ARE WITHIN THE DERMIS SKIN LAYER?

A

PAPILLARY LAYER, DERMAL LAYER, RECTICULAR LAYER

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15
Q

WHAT IS THE FUNCTION OF THE PAPILLARY LAYER?

A

SUPERFICIAL LAYER OF DERMIS. MADE OF LOOSE (AREOLAR) CONNECTIVE TISSUE. 20% OF DERMIS

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16
Q

WHAT IS THE FUNCTION OF DERAL PAPILLAE

A

PART OF THE PAPILLARY LAYER IN CONTACT IN EPIDERMIS: FINGER LIKE PROJECTIONS (FOLDS) CONTAIN CAPILLARIES, TACTILE, CORPUSCLES, OR FREE NEVE ENDINGS.

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17
Q

WHAT IS THE FUNCTION OF THE RETICULAR LAYER

A

DEEP LAYER OF DERMIS. MADE OF DENSE IRREGULAR CONNECTIVE TISSUE WITH COLLAGEN, ELASTIC, AND RETICULAR FIBERS TO PROVIDE, STRENGTH, FLEXIBILITY AND SUPPORT. 80% OF DERMIS

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18
Q

WHAT IS HYPODERMIS?

A

NOT A LAYER OF SKIN; LAYER UNDER THE DERMIS THAT CONNECTS SKIN TO OTHERS TISSUES LIKE MUSCLES AND CONTAINS BLOOD VESSELS. PRIMARILY COMPOSED OF ADIPOSE PROTECTION

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19
Q

WHAT IS ADIPOSE TISSUE?

A

FAT/ENERGY STORAGE, ACTS OF INSULATION, AND PROVIDES PROTECTION

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20
Q

WHAT IS HAIR COMPOSED OF?

A

SHAFT AND ROOT

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21
Q

DESCRIBE AND NAME THE FUNCTION OF THE HAIR ROOT IS

A

BELOW THE SKIN SURFACE. WITHIN HAIR FOLLICLE. CONTAINS LIVING KERATINOCYTES

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22
Q

DESCRIBE AND NAME THE FUNCTION OF THE HAIR BULB

A

KNOBLIKE BASE OF HAIR ROOT. ENCLOSES HAIR PAPILLA

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23
Q

DESCRIBE AND NAME THE FUNCTION HAIR SHAFT

A

MADE OF DEAD KERATINOCYTES, PROJECTS ABOUT THE SKIN

24
Q

DESCRIBE AND NAME THE FUNCTION OF HAIR PAPILLA

A

INDENTATION IN BOTTOM OF HAIR SHAFT. CONTAINS CAPILLARIES THAT NOURISH DIVIDING CELLS IN MATRIX

25
Q

DESCRIBE AND NAME THE FUNCTION OF HAIR FOLLICLE

A

SHEATH THAT ENCLOSES THE HAIR ROOT

26
Q

DESCRIBE AND NAME THE FUNCTION OF ARRECTOR PILI MUSCLE

A

BUNLDE OF SMOOTH MUSCLE FIBERS. CAN CONTRACT TO PULL HAIR UPRIGHT OR CAUSEE GOOSEBUMPS

27
Q

DESCRIBE AND NAME THE FUNCTION OF THE MATRIX

A

LOCATION OF KERANTINOCYTE GENERATION

28
Q

NAME ALL THE GLAND-RELATED ACCESSORY STRUCTURES

A

ECCRINE SWEAT GLAND, SWEAT PORE, APOCRINE SWEAT GLAND, SEBACEOUS GLAND

29
Q

DESCRIBE AND NAME THE FUNCTION OF ECCRINE SWEAT GLAND

A

LOCATED OVER ENTIRE BOSY, SECRETE, SWEAT CONTAINING WATER, SALT, WASTE; TEMPERATURE REGULATION

30
Q

DESCRIBE AND NAME THE FUNCTION OF SWEAT PORE

A

OPENING IN SKIN SURFACE FORC ECCRINE SWEAT GLAND

31
Q

DESCRIBE AND NAME THE FUNCTION OF APOCRINE SWEAT GLAND

A

IN ARMPITS, AGOGENTIAL AREAS, AREOLA, SWETA GLANDS CONTAIN WATER, SALT, WASTE, PROTEINS; RESPONSE TO PAIN, STRESS, SEXUAL STIMULATION

32
Q

DESCRIBE AND NAME THE FUNCTION OF SEBACEOUS GLAND

A

SECRETE SEBUM, (OILY AND ACIDIC) ONTO SKIN OR HAIR FOLLICLES; LUBRICATION

33
Q

LIST ALL THE NAIL-RELATED ACCESSORY STRUCTURES

A

EPONYCHIUM, HYPONYCHIUM, LUNULA, NAIL BED, NAIL FOLD, NAIL MATRIX, NAIL PLATE, NAIL BODY, NAIL ROOT, FREE EDGE OF NAIL

34
Q

DESCRIBE AND NAME THE FUNCTION OF THE EPONYCHIUM

A

CUTICLE. MOST DISTAL PORTION OF THE PORMIX NAIL FOLDS. MADE OF ONLY STRATUM COERNEUM.

35
Q

DESCRIBE AND NAME THE FUNCTION OF THE HYPONYCHIUM

A

ACCUMULATION OF STRATUM CORNCEUM. KNOWN AS A QUICK. UNDER FREE EGDE OF NAIL PLATE. ATTACHES NAIL OF BED

36
Q

DESCRIBE AND NAME THE FUNCTION OF THE LUNULA

A

CRESCENT-SHAPED WHITE AREA OF NAIL PLATE THAT IS ABOVE NAIL MATRIX

37
Q

DESCRIBE AND NAME THE FUNCTION OF THE NAIL BED

A

AREA DIRECTLY UNDER NAIL PLATE

38
Q

DESCRIBE AND AND NAME THE FUNCTION NAIL FOLD

A

FOLDED SKIN THAT KEEPS NAIL IN PLACE

39
Q

DESCRIBE AND NAME THE FUNCTION OF THE NAIL MATRIX

A

PROXIMAL PART OF NAIL BED. GROWING REGION THAT HAS ACTIVELY DIVIDING CELLS.

40
Q

DESCRIBE AND NAME THE FUNCTION OF THE NAIL PLATE

A

MADE OF NAIL BODY AND NAIL ROOT, COVERS EPIDERMAL NAIL BED.

41
Q

DESCRIBE AND NAME THE FUNCTION OF THE NAIL BODY

A

EXPOSED PORTION OF NAIL PLATE

42
Q

DESCRIBE AND NAME THE FUNCTION OF THE NAIL ROOT

A

PART OF NAIL PLATE THAT IS UNDER SKIN

43
Q

DESCRIBE AND NAME THE FUNCTION OF THAT FREE EGDE OF NAIL

A

PART OF NAIUL THAT GROWS BEYOND THE HYPONYCHIUM

44
Q

LIST ALL THE SENSORY RECEPTORS AND VESSELS

A

FREE NERVE ENDINGS, SENSORY NERVE, TACTILE CORPUSCLE, LAMELLAR CORPUSCLE, BOOOD VESSELS

45
Q

WHAT IS THE FUNCTION OF FREE NERVE ENDINGS?

A

PAIN, TEMPERATURE TOUCH RECEPTORS

46
Q

WHAT IS THE FUNCTION OF THE SENSORY NERVE?

A

DETECTS CHANGES IN THE ENVIRONMENT AND TRANSMITS INFO TO THE CNS

47
Q

WHAT IS THE FUNCTION OF THE TACILE CORPUSCLE?

A

RESPONDS TO LIGHT TOUCH

48
Q

WHAT IS THE FUNCTION OF THE LAMELLAR CORPUSCLE?

A

RESPONDS TO PRESSURE AND VIBRATIONS

49
Q

WHAT IS THE FUNCTION OF BLOOD VESSELS?

A

CARRY BLOOD TO AND FROM TISSUES

50
Q

LIST ALL GENERAL SENSES

A

THERMOREPECTOR, NOCICEPTOR, MECHANORECEPTOR, REFFERED PAIN, TWO-POINT THRESHOLD, ADAPTATION, SENSORY HOMUNCULUS

51
Q

WHAT IS THE FUNCTION OF THE THERMORECEPTOR?

A

RECEPTOR THAT DETECTS CHANGES IN THE TEMPERATURE

52
Q

WHAT IS THE FUNCTION OF THE NOCICEPTOR?

A

RECEPTOR THAT DETECTS PAIN/DAMAGE IN TISSUES?

53
Q

WHAT IS THE FUNCTION OF THE MECHANORECEPTOR?

A

RECEPTOR THAT DETECTS CHANGES IN THE PRESSURE, STRETCH OR VIBRATION

54
Q

WHAT IS THE FUNCTION OF THE REFERRED PAIN?

A

PAIN FELT IN ONE AREA ALTHOUGH THE ACTUAL SOURCE OF PAIN IS LOCATED ELSEWHERE

55
Q

WHAT IS THE FUNCTION OF THE TWO-POINT THRESHOLD

A

MINIMAL DISTANCE WHERE TWO POINTS CAN BE FELT.

56
Q

WHAT IS THE FUNCTION OF THE ADAPTATION?

A

SENSORY EVENT WHERE REPEATED STIMULATION LEADS TO CESSATION OF SENSATION

57
Q

WHAT IS THE FUNCTION OF THE SENSORY HOMUNCULUS?

A

MAP OF SOMTAMOSENSORY CORTEX SHOWING RELATIVE AREAS OF THE CORTEX DEVOTED TO SENSATIONS FROM THE VARIOUS REGIONS OF THE BODY

BIO 201 (6 decks)

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