BioS255 Comprehensive Exam with Guaranteed Correct Answers

Function of nervous system - correct answer -Control of body's internal environment to maintain 'homeostasis' -Programming of spinal cord reflexes -Memory and learning -Voluntary control of movement Positive & negative feedback - correct answer A positive feedback loop causes a self-amplifying cycle where a physiological change leads to even greater change in the same direction. A negative feedback loop is a process in which the body senses a change, and activates mechanisms to reverse that change. The name of the joint in the ankle - correct answer talocrural joint characteristics of epithelial tissue - correct answer cellularity, polarity, attachment, vascularity, regeneration Properties of synovial joints - correct answer **Hyaline cartilage, joint capsule, synovial membrane, synovial fluid, ligaments** -Involve movement between joints The surface of the joint is covered by a fluid filled capsule. -The synovial fluid is trapped under the synovial membrane and acts as a lubricant between the bones. -Cartilage at the ends of the bone acts as a cushion and shock absorber. 3 protein fibers in connective tissues - correct answer collagenous fibers, elastic fibers, and reticular fibers. chondroitin sulfate - correct answer provides support and adhesiveness in cartilage, bone, skin, and blood vessels Sacrum— illium - correct answer answer Keratin - correct answer A fiber protein that is the principal component of hair, skin, and nails Sweat glands location and function - correct answer Eccrine glands: help to maintain homoeostasis, primarily by stabilizing body temperature. Smaller glands and excretes on top of skin ((feet, forehead, cheeks) Apocrine glands: continuously secrete a fatty sweat into the gland tubule. ((armpit, groin, nipple area) Hard palate bone - correct answer -formed by maxilla and palatine bones