Bones and cartilages are specialized connective tissue. Bone formation is called osteogenesis. Extracellular ground substance is hard in nature. Bones provide support and protection for body organs
Acetabulum is the cup-shaped socket of the hip joint. Forms by fusion of ilium, ischium, and pubis. Contains fibrocartilaginous labrum and acetabular fossa. Deepest part occupied by Haversian pad of fat
Larynx is an air-filled space located at the crossroads of upper airway and tracheobronchial tree. Divided into supraglottis, glottis, and subglottis regions. Spans from C3 to C6 levels in adults. Functions in respiration, swallowing, airway protection, and phonation
Most common type of cartilage in human body. Glass-like, pearl-gray in color with firm consistency. Contains no nerves or blood vessels. Primarily composed of type II collagen and proteoglycans
Chitons are marine molluscs with 940 extant and 430 fossil species. Shell consists of eight articulating aragonite valves surrounded by girdle. Shell plates overlap slightly but articulate well for protection. Live worldwide from cold waters to tropics, often on rocks
Cartilage is a resilient, smooth connective tissue covered by perichondrium. Contains chondrocytes producing collagenous extracellular matrix. Matrix consists of glycosaminoglycans, proteoglycans, collagen and sometimes elastin. Cartilage grows faster than bone and lacks blood vessels