Exam A Study Guide Flashcards

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.

Epithelial Tissue

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

Connective Tissue

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

Muscle Tissue

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

Nervous Tissue

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

Epithelial Cells

Squamous, Cuboidal, Columnar

Connective Tissue Cells

Fibroblasts, Adipocytes, Macrophages

Muscle Tissue Cells

Skeletal Muscle Fibers, Cardiomyocytes, Smooth Muscle Cells

Nervous Tissue Cells

Neurons and Glial Cells

Endocrine Glands

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

Exocrine Glands

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

Merocrine Glands

Secrete via exocytosis (e.g., sweat)

Apocrine Glands

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

Holocrine Glands

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

Collagen Fibers

Tensile strength

Elastic Fibers

Flexibility/Stretch

Reticular Fibers

Supportive mesh

Skeletal Muscle

Voluntary, striated, multinucleated

Cardiac Muscle

Involuntary, striated, intercalated discs, 1 nucleus

Smooth Muscle

Involuntary, non-striated, 1 nucleus

Neurons

Transmit impulses

Glial Cells

Support, protect, nourish neurons

Stratum Corneum

Dead keratinized cells

Stratum Basale

Mitotic layer, melanocytes

Keratinocytes

Main structural cell, keratin production

Melanocytes

Pigment production

Langerhans Cells

Immune defense

Merkel Cells

Sensory

Sebaceous Glands

Oil secretion (sebum)

Eccrine Sweat Glands

Thermoregulation, watery sweat

Apocrine Sweat Glands

Found in armpits/groin, thicker sweat

Meissner Corpuscles

Light touch

Pacinian Corpuscles

Deep pressure

Merkel Discs

Steady pressure

Free Nerve Endings

Pain & temperature

1st Degree Burn

Epidermis only; generally no pain

2nd Degree Burn

Epidermis and part of dermis; blisters

3rd Degree Burn

Full thickness; nerve damage, white charred skin

Basal Cell Carcinoma

Most common, least dangerous

Squamous Cell Carcinoma

Can spread, more aggressive

Melanoma

Arises from melanocytes, highly metastatic & deadly