What Helps Bone Resist Compression

Question: Bone is considered part of the skeletal system, but ligaments are not.TrueFalse

Answer: FALSE

Question: Which type of cartilage is found in the intervertebral discs?Hyaline cartilageFibrocartilageReticular cartilageArticular cartilageElastic cartilage

Answer: Fibrocartilage

Question: Flat bones-protect underlying soft tissue and may be slightly curved.-have elaborate shapes, and sometimes resemble sesame seeds.-include the bones of the wrist that glide across each other.-are, by definition, not at all curved.-have a diaphysis and an epiphysis.

Answer: protect underlying soft tissue and may be slightly curved.

Question: What helps bone resist compression?Yellow bone marrowReticular fibersInorganic saltsRed bone marrowEndosteum

Answer: Inorganic salts

Question: Neither short nor flat bones contain a medullary cavity.TrueFalse

Answer: TRUE

Question: The bones of the fingers and toes (phalanges) are categorized as _____ bones.longirregularshortflatsesamoid

Answer: long

Question: Which region of a growing bone contains the epiphyseal plate?Distal epiphysisProximal epiphysisMetaphysisDiaphysisPeriphysis

Answer: Mataphysis

Question: Which is not a function of bone?ProtectionMineral storageBody movementHormone synthesisHemopoiesis

Answer: Hormone synthesis

Question: Where does hemopoiesis occur?Epiphyseal lineEndosteumRed bone marrowYellow bone marrowNutrient foramina

Answer: Red bone marrow

Question: If a clinician were looking to harvest bone marrow that made blood cells, which bone of a donor would be sampled?Distal head of femurOs coxaPhalangesDistal humerus

Answer: Os coxa

Question: Place in correct order the following steps in the process of appositional growth of cartilage.a: New matrix is produced and secreted.b: Chondrocytes differentiate, each in its own lacuna.c: Stem cells undergo mitosis.d: Committed cells differentiate into chondroblasts.1) c. - d. - a. - b.2) d. - c. - b. - a.3) c. - d. - b. - a.4) a. - c. - b. - d.5) a. - c. - d. - b.

Answer: 1) c. - d. - a. - b.

Question: During the process of endochondral ossification, chondrocytes in the cartilage model die. Why does this occur?-Blood supply to the cartilage is cut off by the developing periosteum.-Canaliculi connecting adjacent chondrocyte lacunae fuse.-Nutrients cannot diffuse to the chondrocytes through the calcified matrix.-The developing bone collar secretes enzymes that destroy the chondrocytes.-Phagocytic osteoclasts in the new bone engulf and destroy the chondrocytes.

Answer: Nutrients cannot diffuse to the chondrocytes through the calcified matrix.

Question: Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone.TrueFalse

Answer: TRUE

Question: Most of the bones of the upper and lower limbs are formed by intramembranous ossification.TrueFalse

Answer: FALSE

Question: When during human development does the process of ossification begin?12 weeks after birth12th-13th week of embryonic development8th-9th month of fetal development3-4 months of age10-25 years of age

Answer: 12th-13th week of embryonic development

Question: The flat bones of the cranium form by intramembranous ossification.TrueFalse

Answer: TRUE

Question: Mechanical stress of bones, such as that caused by weight lifting, is detected by-osteocytes, which then communicate to osteoblasts to increase synthesis of osteoid.-osteoclasts, which then communicate to osteocytes to increase the size of lacunae.-chondrocytes, which then trigger osteoblasts to increase bone in a lengthwise fashion.-osteoblasts, which then communicate to

osteocytes and osteoclasts to deposit more hydroxyapatite.

Answer: osteocytes, which then communicate to osteoblasts to increase synthesis of osteoid.

Question: Which is not true about bone remodeling?It occurs throughout life.It assists in the maintenance of calcium and phosphate levels in the body.It occurs at both the endosteal and periosteal surfaces of the bone.It occurs only at articular surfaces.It can occur in response to stress on a bone.

Answer: It occurs only at articular surfaces.

Question: Glucocorticoids increase bone ________; high levels of serotonin lead to _____ bone density.formation; highformation; lowloss; highloss; low

Answer: loss; low

Question: Once we reach adulthood and our bones are fully formed and hardened, they cannot be remodeled.TrueFalse

Answer: FALSE