Exam A Study Guide Flashcards

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Flashcards related to tissue types, glands, muscle tissue, nervous tissue, skin layers, cells of the skin, glands of the skin, sensory receptors, burns and skin cancers.

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40 Terms

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Epithelial Tissue

Covers body surfaces, lines cavities, and forms glands; functions include protection, secretion, absorption, and filtration.

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Connective Tissue

Supports, protects, and binds tissues and organs; functions include structural support, storage, and immune defense.

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Muscle Tissue

Responsible for movement; functions include producing body movement, maintaining posture, and generating heat.

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Nervous Tissue

Detects stimuli and transmits impulses; function is communication via electrical signals.

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Epithelial Cells

Squamous, Cuboidal, Columnar

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Connective Tissue Cells

Fibroblasts, Adipocytes, Macrophages

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Muscle Tissue Cells

Skeletal Muscle Fibers, Cardiomyocytes, Smooth Muscle Cells

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Nervous Tissue Cells

Neurons and Glial Cells

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Endocrine Glands

Releases hormones into the blood (e.g., thyroid)

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Exocrine Glands

Releases substances through ducts (e.g., sweat, salivary glands)

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Merocrine Glands

Secrete via exocytosis (e.g., sweat)

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Apocrine Glands

Secrete via partial cell loss (e.g., mammary glands)

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Holocrine Glands

Whole cell disintegrates to release contents (e.g., sebaceous glands)

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Collagen Fibers

Tensile strength

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Elastic Fibers

Flexibility/Stretch

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Reticular Fibers

Supportive mesh

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Skeletal Muscle

Voluntary, striated, multinucleated

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Cardiac Muscle

Involuntary, striated, intercalated discs, 1 nucleus

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Smooth Muscle

Involuntary, non-striated, 1 nucleus

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Neurons

Transmit impulses

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Glial Cells

Support, protect, nourish neurons

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Stratum Corneum

Dead keratinized cells

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Stratum Basale

Mitotic layer, melanocytes

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Keratinocytes

Main structural cell, keratin production

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Melanocytes

Pigment production

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Langerhans Cells

Immune defense

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Merkel Cells

Sensory

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Sebaceous Glands

Oil secretion (sebum)

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Eccrine Sweat Glands

Thermoregulation, watery sweat

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Apocrine Sweat Glands

Found in armpits/groin, thicker sweat

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Meissner Corpuscles

Light touch

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Pacinian Corpuscles

Deep pressure

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Merkel Discs

Steady pressure

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Free Nerve Endings

Pain & temperature

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1st Degree Burn

Epidermis only; generally no pain

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2nd Degree Burn

Epidermis and part of dermis; blisters

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3rd Degree Burn

Full thickness; nerve damage, white charred skin

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Basal Cell Carcinoma

Most common, least dangerous

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Squamous Cell Carcinoma

Can spread, more aggressive

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Melanoma

Arises from melanocytes, highly metastatic & deadly