Chamberlain University BIOS 251 Final Exam Questions And Answers Verified 100% Correct

Chamberlain University BIOS 251 Final Exam Questions And Answers Verified 100% Correct Describe the hypodermis - ANSWER Layer of loose connective tissue below the dermis; also called the subcutaneous layer of superficial fascia; important in stabilizing the position of the skin in relation to underlying tissues; dominated by adipose tissue. Define osteogenesis - ANSWER Bone formation What is a TRUE statement regarding bone REMODELING? - ANSWER Mature bone adds and removes from the thickness of bone Which layer of strata is NOT found in THIN skin? - ANSWER Stratum lucidum Describe keratinocytes - ANSWER Most abundant cells of the epidermis Produces a fibrous protein Describe melanocytes - ANSWER Accounts for the variations of hair color Protects the skin from UV damage What is a structure that is NOT found in hair? - ANSWER Lunule What is NOT a function of the sebaceous glands? - ANSWER Cooling the skin What accounts for the strength and resilience of the dermis? - ANSWER Collagen fibers What accounts for the stretch and recoil properties of the dermis? - ANSWER Elastic fibers What is NOT found in the DERMIS of the skin? - ANSWER Keratinocytes What is the duration of time for each phase of hair growth? - ANSWER Growth phase: Several years Transition phase: Several weeks Resting phase: Several months What are the six types of bone based on shape? - ANSWER Long Short Irregular Sesamoid Flat Sutural What are the projections or elevations in bones? - ANSWER Process Ramus What are the general features of bones? - ANSWER Epiphysis: the two ends of long bones Diaphysis: the shaft Medullary Cavity: hollow space within the diaphysis Endosteum: membrane lining the medullary cavity Periosteum: connective tissue covering the bone; helps regulate bone thickness What are the depressions or holes in bones? - ANSWER Meatus Fossa Foramen Fissure Define osteoprogenitor cells - ANSWER Stem cells that develop into osteoblasts Define osteoblasts - ANSWER Bone forming/building cells Lays down the bone matrix Define osteoclasts - ANSWER Dissolves and reabsorbs the bone matrix Define osteocytes - ANSWER Mature bone cells Maintains the bone matrix What is an amphiarthrotic joint that is bound by fibrocartilage? - ANSWER Symphysis Define ossification - ANSWER The process of replacing other tissues with bone Includes calcification Process of depositing calcium into bone tissue Define endochondral ossification - ANSWER Formation of new bone during development Replaces cartilage with bone Includes calcification Are the bones of the skull part of the axial or appendicular skeleton? - ANSWER Axial Is pelvic girdle part of axial or appendicular skeleton? - ANSWER Appendicular Is the vertebrae a part of the axial or appendicular skeleton? - ANSWER Axial