For alternate meanings see skin (disambiguation) Diagram of the layers of human skinIn zootomy and dermatology‚ skin is an organ of the integumentary system composed of a layer of tissues that protect underlying muscles and organs. As the interface with the surroundings‚ it plays the most important role in protecting against pathogens. Its other main functions are insulation and temperature regulation‚ sensation and vitamin D and B synthesis. Skin has pigmentation‚ provided by melanocytes
Premium Skin Organ Epidermis
Chapter 5: Integumentary System When comparing the dermis with the hypodermis‚ A. the dermis has more fat cells than the hypodermis. B. the dermis has more vascular tissue than the hypodermis. C. the dermis contains dense connective tissue; the hypodermis contains loose connective tissue. D. the dermis contains melanocytes; the hypodermis does not. Answer C Keratinocytes: A. produce skin pigments in cell organelles called melanosomes. B. are found in both the dermal and epidermal layers
Premium Skin Epithelium Tissues
Module 02 Case Study: Integumentary System Part I—"Soaking Up the Sun" Questions 1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin cancer than Mariah? (2 points) Judy is described to have pale pasty white skin and red hair. Mariah is described to be a Greek goddess. Judy’s skin is more prone to burning in the direct sun light due to her body not making as much melanin making her skin more reflective to light as where Mariah’s skin absorbs more light
Premium Cancer
AP Biology: Unit 3: Cell Division & Genetics: Virtual Lab #4: Punnett Squares Instructions 1. Open the Virtual Lab: Punnett Squares: http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/labs/BL_05/index.html 2. The virtual lab simulation will be on the right side of the screen‚ and the “Question” column will be on the left side of the screen. 3. Click on the TV/VCR and watch the video. 4. Read the background information in the Question Column under “How can Punnett Squares help predict
Premium Allele Zygosity Gene
Worksheet 2- Brittani Wright 1. a) Define a cell. A cell is the basic unit of life b) What is a unicellular organism? An organism that consists of only one cell c) Can a cell be multicellular? No because a cell is the smallest unit of life‚ cells can however join together to start forming something else 2. a) What is a difference between prokaryotic and eukaryotic cells? b) What is one significant similarity? Prokaryotic cells do not have a neucleus and Eukaryotic cells do have a nucleus
Premium Cell Organelle Protein
Psoriasis | A disease affecting the integumentary system | Simaria HollandBio 201July 21‚2011 | | Psoriasis is a chronic auto-immune disease that appears on the skin. Psoriasis happens when the immune system sends out faulty signals that increase the production of skin growth resulting in the typical appearance of thickened‚ raised‚ and dry skin. It is estimated that 2% of the world ’s population suffers from this disease. There is no "cure" for those living with this disease. Psoriasis
Premium
APA Citation Worksheet Student name: Date completed: 1/ 30 /2013 Instructions for APA Citation Worksheet 1. Above each original citation‚ define the type of citation‚ i.e.‚ Book; Journal Article; Chapter in a Book; Entry in an Encyclopedia; Conference Proceeding; Interview; Electronic resource such as an online Journal article or article from a database‚ etc. (1 point). 2. In one sentence‚ state the mistake(s) in the citation as it is presented. An example of the mistake(s) statement
Premium Higher education Educational psychology E-learning
What personality (or character) type does Hank display according to Freudiantheory? Provide evidence for your answer. At what stage is Hank fixated‚according to the Freudian perspective? Find evidence of fixation in the casestudy. What might have caused this fixation? Hank¶s personality is a reflection of the unconscious mind. He is not aware of howothers perceive him. Unfortunately‚ Hank was isolated from the social scenebecause of his character. He never had the pleasure to meet a girlfriend
Free Mind Consciousness
DNA Worksheet Misanna Gordon SCI 230 December 02‚ 2012 Mitzie Sowell Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. A DNA molecule which is abbreviation for deoxyribonucleic acid is made up of very long chains of monomers and polymers that are called nucleotides. These two chains in particular which composes of DNA strain are then formed by the grouping of the nucleotides into the polynucleotides. The
Premium DNA Gene
Module 02 Case Study: Integumentary System Part I—"Soaking Up the Sun" Questions 1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin cancer than Mariah? (2 points) 2. What observations did Judy make concerning her mole? How could they have used the ABCDE’s of skin cancer assessment to further assist their observations? (2 points) 3. Should Judy be concerned? Why or why not? (2 points) Part II—"The Basics of Cancer" Questions 1. Considering the
Premium Cancer Oncology Ultraviolet