Bones are covered and lined by a protective tissue called periosteum. the inner (osteogenic) layer consists primarily of a) chondrocytes and osteocytes b) dense irregular connective tissue c) osteogenic cells d) cartilage and compact bone

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.