Anatomy & Physiology Test 2 Review
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Protection, absorption, filtration, secretion, and sensory reception. It covers body surfaces and lines cavities.
Polarity, specialized contacts, supported by connective tissue, avascular but innervated, and high regeneration capacity.
Simple epithelium has one cell layer for absorption and filtration; stratified has multiple layers for protection.
Endocrine glands secrete hormones into blood (e.g., thyroid); exocrine glands secrete onto surfaces (e.g., sweat glands).
Loose connective tissue (areolar, adipose, reticular) and dense connective tissue (dense regular, dense irregular, elastic).
Cartilage (chondrocytes), bone (osteocytes), blood (erythrocytes, leukocytes).
Support, protection, binding, insulation, and transportation of substances.
Collagen (strength), elastin (elasticity), reticular (supportive meshwork).
Cells that produce collagen and other fibers in the extracellular matrix.
Skeletal (voluntary, striated), cardiac (involuntary, striated, intercalated discs), smooth (involuntary, non-striated).
Transmit electrical signals to communicate information throughout the body.
Support, protect, and nourish neurons; maintain homeostasis in nervous tissue.
Cutaneous (skin), mucous (line body cavities open to exterior), serous (line closed cavities; parietal and visceral layers).
From deep to superficial: stratum basale, spinosum, granulosum, lucidum (only in thick skin), corneum.
Keratinized stratified squamous epithelium.
Support epidermis, house blood vessels, nerves, glands, and hair follicles.
Papillary layer (areolar connective tissue) and reticular layer (dense irregular connective tissue).
Sudoriferous (sweat) glands for thermoregulation; sebaceous glands secrete oil to lubricate skin and hair.
UV light converts 7-dehydrocholesterol in skin to vitamin D precursor; vitamin D aids calcium absorption for bone health.
1st degree: epidermis only; 2nd degree: epidermis and part of dermis; 3rd degree: full thickness, may require grafts.
Support, protection, movement, mineral storage, blood cell production, and fat storage.
Osteoblasts (build bone), osteocytes (maintain bone), osteoclasts (resorb bone), osteogenic cells (stem cells).
Compact bone is dense and solid; spongy bone is porous and contains red marrow.
Bone develops directly from mesenchymal tissue, mainly in flat bones like the skull.
Bone forms by replacing hyaline cartilage, typical in long bones.
Growth hormone, thyroid hormone, parathyroid hormone, calcitonin, and sex hormones.
Fibrous, cartilaginous, and synovial joints.
Synarthrosis (immovable), amphiarthrosis (slightly movable), diarthrosis (freely movable).
Gliding, angular (flexion, extension, abduction, adduction), rotation, and special movements.