Hondros BIO 117 Exam 2 | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+

Hondros BIO 117 Exam 2 | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+ Shaft of long bone Correct Answer: diaphysis Site of longitudinal bone growth Correct Answer: epiphyseal disc Bone-building cell Correct Answer: osteoblast Site of blood cell production Correct Answer: red bone marrow Tough outer covering of the bone Correct Answer: periosteum Enlarged end of a long bone Correct Answer: epiphysis 2 Cancellous bone Correct Answer: spongy bone Osteon Correct Answer: haversian system Bone-eroding cell that helps in bone marrow remodeling Correct Answer: osteoclast Hollow center of a long bone Correct Answer: medullary cavity The epiphyseal disc is Correct Answer: composed of cartilage and is involved in the growth of long bones Osteoclastic activity Correct Answer: stimulates bone breakdown Depression of the red bone marrow Correct Answer: causes a life-threatening decline in red blood cells 3 Osteoporosis affects the older population, with women being more affected. Other bone diseases cause a decrease in bone density. Which hormone could possibly be contributing to this, what cell is turning on and which cell is turning off? Correct Answer: Parathyroid Hormone, turning on osteoclasts, turning off osteoblasts What are all the bones of the Pelvic and Pectoral Girdles? Correct Answer: Pelvic Girdle: Sacrum, Coccyx, Pelvic bone (ilium, ischium, pubis) Pectoral Girdle: Scapula and Clavicle If we needed less calcium in the bloodstream, what hormone would I want to use? What gland does this hormone come from? What cell does it stimulate? What cell does it inhibit? Correct Answer: Calcitonin from the thyroid gland, osteoblasts, and osteoclasts What are the bones of the arm? What bone does each articulate with? What special cartilage can we see at the ends of these articulating bones? Is this appendicular skeleton or axial skeleton? Correct Answer: Humerus (articulates with scapula, radius, ulna), radius (articulates with humerus, ulna, carpals), ulna (articulates with radius, humerus, carpals) Special Cartilage = articular cartilage