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BIOL251 Human Anatomy & Physiology I w/Lab 2025 | Module 6 Exam Review |70+ Questions and Answers Summary |LockDown Browser |Portage Learning

HEAL100 Health Care — exam and revision material · Other

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Health Care exam material, 49 pages. Originally published on StudyMerit.

Pages
49
Academic year
2025/2026
Language
English

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1 BIOS BIOS251 Lab 1 / 49 BIOS251 L AB P RACTICUM : A NATOMY AND P HYSIOLOGY I G UIDE | Q S & A S | G RADE A| 100% C ORRECT (V ERIFIED A NSWERS ) (N EW 2025/ 2026 U PDATE ) 1. Structure of Skin: Epidermis, Dermis, Subcutaneous layer (Hypodermis) 2. Accessory Structures: Sweat glands, Oil (Sebaceous Gland s), Hair, Nails 3. Functions of the Skin: Protection, Synthesis of Vitamin D, Thermoregulation, Non - verbal communication 4. Protection of the Skin: Protects against dehydration and infection (includes acid mantle, keratin, anti - microbial peptides) 5. Synthesis of Vitamin D: Contributes to bones 6. Sensation: Skin is the largest sense organ: tactile, thermal, pain 7. Thermoregulation: Regulating body temp in cold and hot environments, sweat and evaporation

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2 / 49 8. Non - verbal Communication : Expressive faces, general appearance of skin/hair 9. Gross Anatomy: Study of structures that can be seen with the naked eye 10. Microscopic Anatomy: deals with structures too small to be seen with the naked eye 11. Cell types of the Epidermis: Keratinized stratified squamous epithelium Keratinocytes - Ke ratin Melanocytes - Produce Melanin Langerhans Cells - Immune Merkel Cells - Touch/Tactile 12. Thick Skin: Found on the palms of the hands and soles of the feet. Contains the stratum lucidum. AKA: Hairless skin 13. Thin Skin: Found everywhere else of the body. Does not contain a stratum lucidum. AKA: Hairy skin 14. Dermis: Cutaneous membrane Collagen, Elastic, and Reticular Fibres

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3 / 49 Blood Vessels, Nerve Endings, Cutaneous Glands, Hair follicles, Hair roots Dermal Papilla Papillary Layer Reticular Layer Blisters 15. Cutaneous Membrane: Dermis and Epidermis 16. Dermal Papilla: Projections from dermis, grooves called epidermal ridges. Forms fingerprints. 17. Papillary Layer: Most superficial layer of dermis. Made of areolar tissue. Rich in blood supply 18. Reticular Layer: deeper a nd thicker layer of dermis Consists of dense, irregular connective tissue, collagen and elastic fibers. Hair follicles, hair roots, nerve endings, cutaneous glands. Meissner corpuscles. Pacinian corpuscles. Ruffini corpuscles. Produces stretch marks (stria e) due to collagen fibers tearing. Blisters. 19. Meissner Corpuscles: Responds to touch

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