BIOD 151 module 7 exam (Integumentary system)- Portage Learning

3. The layers of the epidermis, from deep to superficial are: Stratum corneum, stratum granulosum, stratum spinosum, stratum basale. Stratum basale, stratum spinosum, stratum granulosum, stratum corneum. Stratum basale, stratum granulosum, stratum corneum, Stratum spinosum. Stratum corneum, stratum spinosum, stratum granulosum, stratum basale. 3. The layers of the epidermis, from superficial to deep are: Stratum corneum, stratum granulosum, stratum spinosum, stratum basale. Stratum basale, stratum spinosum, stratum granulosum, stratum corneum Stratum spinosum, stratum granulosum, stratum corneum, Stratum basale Stratum corneum, stratum spinosum, stratum granulosum, stratum basale 4. Exocrine glands secrete ; Endocrine glands secrete . A. for body -wide distribution, into an epithelial lining B. into an epithelial lining, for body -wide distribution C. through a duct, into the bloodstream D. into the bloodstream, through a duct E. A&D F. B&C 5. Which of the following is true regarding the epidermis: It is highly vascular. It is comprised of five distinct layers. The basement membrane contains its blood supply. Epidermal ridges change throughout a person’s lifetime. 5. Which of the following is false regarding the epidermis: It is avascular. As cells divide they are pushed towards the basement membrane. (False, as cells divide they are pushed towards the external surface of the stratum corneum) The cells of the stratum basale cells have a high rate of cell division. Epidermal ridges form a person’s fingerprints. BIOD 151 module 7 exam (Integumentary system) - Portage Learning Module 7 Exam 1. Identify the region and the layer of skin that is highlighted in blue. (Also indicated by the arrow, below) *NOTE: To receive full credit you must label two regions. Stratum granulosum, Epidermis 2. A- Identify the sensory cell receptor highlighted in blue, below, also indicated by the arrow. B- What sensory information is detected by this type of receptor? A) Meisner’s corpuscles; B) Detects light touch and vibration (mechanoreceptor) Temperature 6. Match the cell with its single best description, using each descript ion only once Fibroblasts - Produces collagen Keratinocytes - Produces a protein to protect the skin Langerhans cells - Assists in immune responses Melanocytes - Produces a pigment that absorbs UV rays Meisner’s corpuscles – Detect Light Touch Nociceptors – Detects pain 7. A person touches a hot cup of coffee. What type of sensory organ detects this information? Thermoreceptors 8. Merkel cells are embedded in what layer of the skin? Epidermis 8. Main blood supply for the skin is found in what layer? Dermis 9. In your own words, how can the skin be used to determine if a person is dehydrated? Pinching the skin on a finger or back of hand, when you let the skin go if the skin stays in the pinched state this is what medical staff determines that the patient is in a dehydrated state 10. What is the name and function of the structure below? (Highlighted in blue, also indicated by the arrow) Arrector pili is a muscle that is connected to each hair follicle and it contracts when the body is cold or when experiencing emotional responses. 11. What is the name and function of the structure below? (Highlighted in blue, also indicated by the arrow) Sebaceous gland or the called the oil gland. This produces sebum (oil) to protect the hair and skin from drying out. 11. What is the name and function of the structure below? (Highlighted in blue, also indicated by the arrow) Sweat gland (Sudoriferous) - produces sweat almost everywhere In the body and helps regulate body temperature 12. All of the following are functions of skin except: Absorb UV rays Thermoregulation Perspiration Produce vitamin K