The five major structures of the brain are myelencephalon‚ Metencephalon‚ mesencephalon‚ diencephalon and telencephalon. The myelencephalon carries signals from the brain to the entire parts of the human body and it is also uniquely shaped looking like a little net. The Metencephalon is made up of ascending and descending tracts just like the myelencephalon. It has two major divisions which are pons and the cerebellum. The mesencephalon has two divisions also and they are the tectum and the tegmentum
Premium Cerebral cortex Cerebrum Brain
up of Stratified Squamous Epithelium. 3. Name and discuss the four cell types found in the epidermis. (Give the structure and function of each) * Keratinocytes- 90% filled with keratin and have a waterproof barrier. * Melanocytes- 8% produce melanin pigment and pass them to the keratinocytes. * Langerhans cells- phagocytes from the immune system and are easily damaged by UV light * Merkle cells- located in deepest layer of hairless skin and they are the sensory transduction
Premium United States DNA Management
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‚ which
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
The Integumentary system is considered the largest system in the human body that protects it from various kinds of damage‚ however this does not prevent skin disorders to appear. Keloids is a skin disorder that results from the overgrowth of scar tissue that occurs at the site of a skin injury. They occur where trauma‚ surgery‚ blisters‚ vaccinations‚ acne or body piercing have injured the skin. Keloids can affect any part of the body‚ but they are most commonly found on the chest. According
Premium Medicine Cancer Immune system
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
The respiratory system is composed of the nasal cavity‚ nostril‚ oral cavity‚ pharynx‚ larynx‚ trachea‚ carina of trachea‚ right main bronchus‚ right lung‚ left main bronchus‚ left lung‚ and diaphragm. These major organs collectively work together to give the body oxygen and eliminate carbon dioxide as we breathe. In order for the respiratory system to be fully capable of function‚ four procedures (pulmonary ventilation‚ external respiration‚ transport of respiratory gases‚ internal respiration)
Premium Endocrine system Blood Kidney
Integumentary System Study Guide 1. Which portion of the epidermis has actively reproducing cells? Stratum Basale 2. Are keratin levels higher in superficial or deep epidermis? Superficial 3. Blood vessels and nerves are present in which layer of skin? Dermis 4. In what layer of skin can you find melanocytes? Epidermis (stratum basale) 5. What structure pulls the hair follicle into an upright position? Arrector Pili 6. What structure is responsible for whorled ridges on epidermal surfaces? Dermal
Premium Skin
NAME_________________________________ LAB TIME/DATE _______________________ R E V I E W S H E E T EXERCISE 7 Print Form The Integumentary System Basic Structure of the Skin 1. Complete the following statements by writing the appropriate word or phrase on the correspondingly numbered blank: Stratified squamous epithelium The two basic tissues of which the skin is composed are dense irregular 1. _____________________________ connective tissue‚ which makes up the dermis‚ and 1 ‚ which
Premium Skin Epidermis
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