LESSON 5 LAB MANUAL Flashcards
Bone growth in length is called interstitial growth, and bone growth in diameter (thickness) is called ___________ growth.
Appositional
The crystallized inorganic mineral salts in bone contribute to bone’s hardness, while the collagen fibers and other organic molecules provide bone with ___________ strength.
Tensil
True or False ? Bone resorption involves increased activity of osteoclasts.
True
True or False ? The formation of bone from cartilage is known as endochondral ossification.
True
True or False ? The growth of bones is controlled primarily by hormones.
True
Place in order the steps involved in intramembranous ossification.
[ ] Periosteum develops on the bone’s periphery.
[ ] Bony matrices fuse to form a trabeculae.
[ ] Clusters of osteoblasts form a center of ossification that secretes the organic extracellular matrix.
[ ] Spongy bone is replaced with compact bone on the bone’s surface.
[ ] The extracellular matrix hardens by deposition of calcium and mineral salts.
[ 4 ] Periosteum develops on the bone’s periphery.
[ 3 ] Bony matrices fuse to form a trabeculae.
[ 1 ] Clusters of osteoblasts form a center of ossification that secretes the organic extracellular matrix.
[ 5 ] Spongy bone is replaced with compact bone on the bone’s surface.
[ 2 ] The extracellular matrix hardens by deposition of calcium and mineral salts.
Place in order the steps involved in endochondral ossification.
[ ] Secondary ossification centers appear at epiphyses.
[ ] Nutrient artery invades the perichondrium.
[ ] Osteoblasts become active in the primary ossification center.
[ ] Chondrocytes enlarge and calcify.
[ ] Osteoclasts create a marrow cavity.
Place in order the steps involved in endochondral ossification.
[ 5 ] Secondary ossification centers appear at epiphyses.
[ 2 ] Nutrient artery invades the perichondrium.
[ 3 ] Osteoblasts become active in the primary ossification center.
[ 1 ] Chondrocytes enlarge and calcify.
[ 4 ] Osteoclasts create a marrow cavity.
Spongy bone differs from compact bone because spongy bone:
[ ] is composed numerous osteons (haversian systems).
[ ] is found primarily in the diaphyses of long bones, and compact bone is found primarily in the epiphyses of long bones.
[ ] contains osteons all aligned in the same directions along lines of stress.
[ ] does not contain osteocytes contained in lacunae.
[ ] is composed of trabeculae that are oriented along lines of stress.
is composed of trabeculae that are oriented along lines of stress.
A primary effect of weight-bearing exercise on bones is to:
[ ] provide oxygen for bone development increase the demineralization of bone
[ ] maintain and increase bone mass
[ ] stimulate the release of sex hormones for bone growth
[ ] utilize the stored triglycerides from the yellow bone marrow
maintain and increase bone mass
Place in order the steps involved in the repair of a bone fracture.
[ ] formation of a hematoma at the site of fracture;
[ ] Osteoblast production of trabeculae and bone callus formation;
[ ] migration of fibroblasts to the fracture site;
[ ] bridging of broken ends of bones by a fibrocartilaginous callus;
[ ] resorption of remaining bone fragments and remodeling of bone;
[ 1 ] formation of a hematoma at the site of fracture;
[ 4 ] Osteoblast production of trabeculae and bone callus formation;
[ 2 ] migration of fibroblasts to the fracture site;
[ 3 ] bridging of broken ends of bones by a fibrocartilaginous callus;
[ 5 ] resorption of remaining bone fragments and remodeling of bone;
column-like layer of maturing chondrocytes
Choice’s
- zone of hypertrophic cartilage
- zone of resting cartilage
- zone of proliferating cartilage
- zone of calcified cartilage
zone of hypertrophic cartilage
layer of small, scattered chondrocytes anchoring the epiphyseal (growth) plate to the bone
Choice’s
- zone of hypertrophic cartilage
- zone of resting cartilage
- zone of proliferating cartilage
- zone of calcified cartilage
zone of resting cartilage
layer of actively dividing chondrocytes
Choice’s
- zone of hypertrophic cartilage
- zone of resting cartilage
- zone of proliferating cartilage
- zone of calcified cartilage
zone of proliferating cartilage
region of dead chondrocytes
Choice’s
- zone of hypertrophic cartilage
- zone of resting cartilage
- zone of proliferating cartilage
- zone of calcified cartilage
zone of calcified cartilage
involved in bone growth by increasing osteoblast activity; causes long bones to stop growing in length
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
sex hormones
during childhood, it promotes growth at epiphyseal plate;
production stimulated by human growth hormone
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
Insulin-like growth factors
raises blood calcium leves by increasing bone resorption
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
PTH
required for protein synthesis
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
Vitamin K
required for collagen synthesis
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
Vitamin C
decreases blood calcium levels by accelerating calcium deposition in bones and inhibiting osteoclasts
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
CT - Calcitonin
active form of Vitamin D; raises blood calcium levels by increasing absorption of calcium from digestive tract
Choice’s
- PTH
- CT
- Calcitriol
- Insulin-like growth factors
- sex hormones
- Vitamin C
- Vitamin K
Calcitriol
a partial break in a bone in which one side of the bone is broken and the other side bends
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
greenstick fracture
a broken bone that does not break through the skin
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
closed (simple) fracture
an infection of bone
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
osteomyelitis
condition characterized by failure of new bone formed by remodelling to calcify in adults
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
osteomalacia
a degeneration of articular cartilage allowing the bony ends to touch; worsens due to friction between the bones
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
osteoarthritis
a broken bone that protrudes through the skin
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
open (compound) fracture
a condition of porous bones characterized by decreased bone mass and increased susceptibility to fractures
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
osteoporosis
microscopic bone breaks resulting from inability to withstand repeated stressful impact
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
stress fracture
splintered bone, with smaller fragments lying between main fragments
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
comminuted fracture
a broken bone in which one end of the fractured bone is driven into the other end
Choice’s
- closed (simple) fracture
- open (compound) fracture
- impacted fracture
- greenstick fracture
- stress fracture
- comminuted fracture
- osteoporosis
- osteomalacia
- osteoarthritis
- osteomyelitis
Impacted fracture
rings of hard calcified matrix found just beneath the periosteum and lining the medullary cavity
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
circumferential lamelllae
microscopic unit of compact bone tissue
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
osteons (haversian svstems)
irregular lattice of thin columns of bone found in spongy bone tissue
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
trabeculae
unspecialized stem cells derived from mesenchyme
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
osteogenic cells
tiny canals that penetrate compact bone; carry blood vessels, lymphatic vessels, and nerves from the periosteum
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
perforating (Volkmann’s) canals
mature cells that maintain the daily metabolism of bone
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
osteocytes
cells that secrete the components required to build bone
Choice’s
- osteogenic cells
- osteocytes
- osteons (haversian svstems)
- perforating (Volkmann’s) canals
- circumferential lamelllae
- osteoblasts
- trabeculae
osteoblasts
Membrane-filled spaces between cranial bones that enable the fetal skull to modify its size and shape for passage through the birth canal are called_________
Fontanels