INTEGUMENTARY system

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Arrector Pili Muscle

"Goose bump" formation of the skin. (hair stands up)

Reticular Layer:

- Makes up 80% -(Deeper Layer) Dense Firbrous Connective Tissue. - Contains Cleavage and tension lines. -Collagen fibers gives strength and reliency that prevents most jabs and scrapes.

Dermal Papillae

- Makes up only 20% -(Superficial) Aereolar Connective Tissue. -Has capillary loops, Meissner's corpuscles and free nerve endings. -Skin markings such as Dermal ridges(Friction ridges) of fingerprints.

2 Layers of the Dermis?

1) Dermal Papillae 2) Reticular Layer

Sweat glands

1) Eccrine 2) Apocrine

Appendages of the skin

1) Hair follicles 2) Sebaceous glands (oil glands/ sebum) 3) Sweat glands 4) Nails

The ________ acts as an insulator for the body?

1) Hypodermis 2) Sebaceous Tissue 3) Dermis 4) Dermis

4 distinct types of cells in the EPIDERMIS:

1) Keratinocytes 2) Melanocytes 3) Merkel Cells 4) Langerhan Cells

Skin Pigments

1) Melanin 2) Carotene 3) Hemoglobin

EPIDERMIS layers

1) Stratum Corneum (dead cells). 2) Stratum Lucidum 3) Stratum Granulosum 4) Stratum Spinosum 5) Stratum Basale Come Lets Get Sun Burned

Stratum corneum

20-30 layers of dead cells, sacs filled with keratin (most superficial)

Stratum granulosum

5 layers flattened cells, grainy, deteriorating with granules

The skin is composed of _________ layers.

A) 1 B) 3 C) 2 D) 4

Which layer is not part of the Integumentary system?

A) All are part of the Integumentary System B) Dermis C) Hypodermis D) Epidermis

Sudoriferous (sweat) glands are found everywhere expect?

A) Arms & Legs B) Feet C) Palms & Soles D) Nipples and parts of the external genitalia

What area of the skin structure is responsible for "goose bump" formation of the skin?

A) Arrector Pili Muscle B) Meissner's Corpuscle C) Sensory Nerve Fiber D) Pacinian corpuscle

layer of the epidermis expected to be healthiest cells?

A) Basale B) Lucidum C) Corneum D) Spinosum E) Granulosum

epithelial cells constantly shed from which stratum

A) Basale B)Lucidum C) Corneum D) Spinosum E) Granulosum

mitosis occurs primarily in which stratum of the epidermis

A) Basale B)Lucidum C) Corneum D) Spinosum E) Granulosum

What layer of the skin contains Keratinocytes, Melanocytes, Merkel Cells, and Langerhan Cells?

A) Dermal Papillae B) Dermis C) Epidermis D) Hypodermis

What area of the skin structure is responsible for the skin's sensitivity to light touch?

A) Dermal Papillae B) Hair Plexus C) Meissner's Corpuscle D) Pacinian Corpuscle

Which layer of the dermis account for 20% of the dermis and has finger-like pegs that lies next to the epidermis?

A) Granular Layer B) Spiny Layer C) Basal Layer D) Papillary Layer

Which of the options is not considered an appendage of the skin?

A) Nails B) Hair & Hair Follicles C) Sweat Glands D) Carotene

The sebaceous glands are found everywhere on the body except?

A) Palms & Soles B) Head C) Neck & Ears D) Back

The skin is considered an organ.

A) True B) False

The Pacinian corpuscle is a nerve ending responsible for sensitivity to pain and pressure.

A) True B) False

The Reticular Layer account for 50% of the dermis and is made up of superficial fascia.

A) True B) False

The skin is considered a tissue.

A) True B) False

The ________ is responsible for why you would feel something touch your hair.

A)Hair Follicle B) Hair Root C) Root Hair Plexus D) None of the options

Hair shaft

Allows the body to sense things (touch receptor)

Dermis

Contains nerves and nerve fibers and bloody vessels.

Lucidum/Corneum

Dead cells

Keratinocyte Cells

Epidermal cell that produces Keratin.

Langerhan Cells

Epidermal cells that command function and have self-defend function.

Merkel Cells

Epidermal touch cells...relay touch-related information such as texture and pressure to the brain.

Melanocyte Cells

Epidermal, mature melanin-forming cell

INTEGUMENTARY system

Has 2 Main layers.

Hypodermis

Last layer: -Just the fat layer, Acts as an insulator for our body to keep us warm.

Stratum Spinosum

Layers with keratinocytes, desmosomes, pre keratin in cell bundle

Stratum basale

Living layer, cell divisions, deepest, mitoic stem cells, melanocytes, dendritic cells

Epidermis

Made up of Keratinized Squamous Epithelium.

Pacinian Corpuscle

Responsible for feeling pain and pressure.

Eccrine gland

The most numerous type that is found all over the body particularly on the palms, soles of the feet, and forehead.

Meissner Corpuscles

Touch receptors located near the surface of the skin.

stratum lucidum

Translucent cells containing keratin fibrils

Apocrine gland

develop in areas abundant in hair follicles, such as your armpits and groin, and they empty into the hair follicle just before it opens onto the skin surface.

Sebaceous glands

oil glands that produce sebum.


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