Zygomatic bone, also called cheekbone, or malar bone, diamond-shaped bone below and lateral to the orbit, or eye socket, at the widest part of the cheek. It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit.
What bones and landmarks make up the cheekbone?
Zygomatic bone
What two bones make up the cheekbone?
The two zygomatic bones form the cheeks and contribute to the orbits. They articulate with the frontal, temporal, maxilla, and sphenoid bones.
Which bone forms the prominences of the cheeks below the eyes?
zygomatic bone. noun Anatomy. a bone on each side of the face below the eye, forming the prominence of the cheek; cheekbone.
Which bones make up your face?
The primary bones of the face are the mandible, maxilla, frontal bone, nasal bones, and zygoma.
Which of the following facial bone is unpaired?
The mandible and vomer are unpaired facial bones of the facial skeleton.
Which of the following facial bones are paired?
Each of the following facial bones are paired: the maxillae form the upper jaw and front of the hard palate; the zygomatic bones form the cheeks; the nasal bones form the bridge of the nose; the lacrimal bones form part of the orbit, or eye socket; the palatine bones form the rear of the hard palate and the inferior …
What type of joints are found in the skull?
The skull bones are connected by fibrous joints called sutures. In fetal skulls the sutures are wide to allow slight movement during birth.
Which of the following is an opening in a bone?
A hole is an opening or groove in the bone that allows blood vessels and nerves to enter the bone.
What is the purpose of bone markings?
Bone markings are projections and depressions found on bones, which help us to identify the location of other body structures, such as muscles.
What is a bony process?
In anatomy, a process (Latin: processus) is a projection or outgrowth of tissue from a larger body.
Which is responsible for bone structure?
Osteoblasts make new bone cells and secrete collagen that mineralizes to become bone matrix. They are responsible for bone growth and the uptake of minerals from the blood. Osteocytes regulate mineral homeostasis.
What happens on the epiphyseal face?
The epiphyseal plate is the area of growth in a long bone. It is a layer of hyaline cartilage where ossification occurs in immature bones. On the epiphyseal side of the epiphyseal plate, cartilage is formed. On the diaphyseal side, cartilage is ossified, and the diaphysis grows in length.
What are the ends of a bone called?
The end of the long bone is the epiphysis and the shaft is the diaphysis. When a human finishes growing these parts fuse together. The outside of the flat bone consists of a layer of connective tissue called the periosteum.
What are the thin plates forming spongy bone called?
Spongy bone consists of plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow. The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive their blood supply.
What are bone forming cells called?
Osteoblasts, bone lining cells and osteoclasts are present on bone surfaces and are derived from local mesenchymal cells called progenitor cells. Osteocytes permeate the interior of the bone and are produced from the fusion of mononuclear blood-borne precursor cells.
What is Osteon?
Osteon (Haversian canal) Osteons are cylindrical vascular tunnels formed by an osteoclast-rich tissue. They contain pluripotential precursor cells and endosteum known as the cutting cone. The bone removed by the cutting cone is replaced by osteoblast-rich tissue.
What is the outer layer of bone called?
periosteum
What is the outer dense part of bone?
Periosteum, dense fibrous membrane covering the surfaces of bones, consisting of an outer fibrous layer and an inner cellular layer (cambium). The outer layer is composed mostly of collagen and contains nerve fibres that cause pain when the tissue is damaged.
Which tissue is present in bone?
connective tissue
