UNC-Chapel Hill BIOL 252 - Integumentary System (3 pages)
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Integumentary System
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Intro to the Integumentary System
- Lecture number:
- 8
- Pages:
- 3
- Type:
- Lecture Note
- School:
- University of North Carolina at Chapel Hill
- Course:
- Biol 252 - Fundamentals of Human Anatomy and Physiology
- Edition:
- 1
Documents in this Packet
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17 pages
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3 pages
-
Lecture 25: Oogenesis and Sexual Cycle
7 pages
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Lecture 24: Digestive and Reproductive System
5 pages
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Lecture 23: Urinary and Digestive Systems
4 pages
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Lecture 22: Urinary System Part 2
4 pages
-
Lecture 21: Respiratory and Urinary
4 pages
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16 pages
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Lecture 20: Respiratory System
4 pages
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Lecture 19: Cardiovascular System Part 3
6 pages
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Lecture 18: Cardiovascular System Part 2
4 pages
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Lecture 17: Immune System and the Heart
5 pages
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3 pages
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27 pages
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Lecture 15: Endocrine and Lymphatic Systems
4 pages
-
5 pages
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Lecture 13: Muscles and Endocrine System
5 pages
-
Lecture 12: Muscle Strength and and Metabolism
5 pages
-
Lecture 11: Muscle Contraction
4 pages
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4 pages
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4 pages
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Lecture 7: Conclusion of Senses
6 pages
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12 pages
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Lecture 6: Gustation, Olfaction, Equilibrium
6 pages
-
Lecture 5: Enteric NS and Gustation
3 pages
-
Lecture 4: Autonomic Nervous System
4 pages
-
Lecture 3: Intracellular Communication
3 pages
-
3 pages
-
2 pages
Unformatted text preview:
1st Edition BIOL 252 Lecture 8 Outline of Last Lecture I Equilibrium II Vision III Sensory Transduction in the Retina IV Generating Optic Nerve Signal V How we Have Different Sensitivities VI Color Vision VII Visual Projection Pathway Outline of Current Lecture I The Skin Its Structure and Function II The Epidermis III The Dermis IV Hypodermis V Skin Coloration Current Lecture I II The Skin Its Structure and Function a Biological harm i Keeps microbes and pathogens out b Chemical harm i Waterproofing helps us to retain water or absorbing too much c Physical harm i Abrasions d Other functions i Vitamin D synthesis ii Sensory reception 1 Pain heat movement pressure light touch iii Thermoregulation 1 Involves all 3 layers of the skin iv Communication 1 Facial muscles skin color changes The Epidermis a Epidermal cell types i Keratinocytes and stem cells make keratin ii Melanocytes These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute III 1 Protect against UV light causes DNA mutations iii Tactile cells 1 Sensory receptor for touch iv Dendritic cells 1 Fight off microbes and bacteria for the immune system 2 First line of defense for body after the skin so 2nd line of defense 3 Signals to the rest of the immune system b Keratinized stratified squamous epithelium i Desmosomes strong mechanical linkages ii Stratum basale bottom most level iii Stratum spinosum 1 Spiny because beginning to dehydrate iv Stratum granulosum 1 Beginning process of cells dying start to become functional 2 Become dehydrated lose organelles 3 By the time they come to stratum corneum cells DEAD v Stratum corneum 1 Cells dead continually exfoliate vi Poll Everywhere 1 What is cancer Uncontrolled cell division 2 Which cells are least likely to become a skin cancer a Stratum granulosum b Other three types have naturally dividing cells c Pathology Skin Disorders i Cancers of the epidermis ii 1 Basal Cell
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BIOL 252: TEST 3-FINAL DIGESTIVE SYSTEM
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