201L Review Q Lab2- Integument and Intro Skeletal

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Dec 6, 2023

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Name: Hailey Adeel Section: Date: 9/9/20 1. What material makes the epidermis tough? Stratum Cornuem 2. Distinguish among Pacinian corpuscles, Meissner’s corpuscles, and pain receptors in the skin. Pacinian corpuscles = sense pressure Meissner corpuscles = sense light Pain receptors = naked nerve endings 3. Approximately how long does it take for the epidermis to renew itself? Six weeks 4. A subcutaneous injection is inserted in the hypodermal or subcutaneous tissue. Based on structures found in the hypodermis and not in the epidermis, why is this the preferred area for administering an injection? Extensive blood vessel network promoting rapid absorption of the drug 5. Complete the table: Integumentary Gland Function(s) Mammary gland Produce milk in female for the child Ceruminous gland Sweat gland, Producing ear wax Sebaceous gland Secrete sebum, provide water proofing Merocrine gland Temperature sensitive sweat gland Apocrine gland Sweat containing organic acids, respond to stress and sexual stimulation 6. How does the epidermis receive nutrients? Underlying connective tissues 7. How are “goose bumps” formed? When small muscles at the base of the hair contract and pull the hair erec 8. Describe the location, structure and function of nails. Three parts; nail plate, nail bed and nail matrix, location is on the finger tips and tips of toes. Function is protecting the locations and enhancing sensations in those areas. Lab 2: Integumentary System; Intro to Skeletal System 1

9. What are the 3 main tissues found in the skin? Where in the skin would you find each tissue? Epidermis, outermost layer of skin. Dermis, beneath epidermis. Hypodermis, under the dermis. 10. Which function of the skeletal system would be especially important if you were in a car accident? Protection of internal organs. 11. The ribs are part of which skeletal division? Axial skeleton 12. Why do adults have fewer bones than infants? Babies are born with more flexible cartilage in the body than adults. 13. The bones that surround the spinal cord are classified as vertebral bones. 14. & 15. Complete the following table: Term Definition/Description Example Articulations Condyle Rounded at the end of some bones, formind articulation with another bone Femur Head Upper portion, made up of skull and lower jaw Vertex Facet Joints in the spine, flat surface connects to another facet vertebrae Extensions and Projections Tuberosity Where muscles and connective tissue attach Deltoid Spine Column of bone, surrounds and protects spinal cord Lumbar Process Projection of outgrowth of tissue Lower jaw Epicondyle Protuberance above long bone Humerus Tubercle Small rounded projection Humerus Crest Raised part of the edge of a bone Iliac crest Line Connection between two points, narrow ridge of bone Midaxillary Trochanter Knobs at the top of femur, attachment of mucles between thigh and pelvis Femur Ramus A branch of blood or nerves Ramus acetabularis arteriae cirumflexae Depressions Alveolus Form of hollow cavity found in lung parenchyma Inside lung Fossa Trench or. Channel, hollow area Cranial cavity Fovea Tiny pit located in the macula of the retina Eye Groove or sulcus Groove on the surface of the brain Brain Neck Joining the head and shoulder. Narrow part of bone that joints Neck of femur Passages and Cavities Foramen Opening or hole in bone Supraorbital foramen Sinus Hollow cavity, large channel containing blood Paranasal sinuses Meatus or canal Opening leading to the interior of the body Ear Fissure Weakness in a decaying empire Anal fissure Notch V- shaped cut at the edge of an object or structure Trochlear notch

16. & 17. Label the following diagrams: Keep Reviewing Previous Labs – You have a cumulative final practical… 18. What is the function of adipose tissue? Store energy in the form of lipids 19. What types of fibers are in fibrocartilage? Collagen fibers 20. What tissue type lines the inside of the urinary bladder? Stratified epithelum Central canal canaliculi Osteocyte lacunae lamellae Dermal papilla Hair bulb Hair root Sebaceous gland Hair shaft

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