Filters
Question type

Study Flashcards

Which of the following exemplifies a positive feedback process happening in bone mineral deposition?


A) The first few crystals that form attract more calcium and phosphate.
B) Osteoblasts neutralize inhibitors that prevent bone resorption.
C) Osteoclasts secrete acid phosphatase that digests collagen.
D) Collagen is digested by enzymes and hydroxyapatite by hydrochloric acid.
E) Solubility product is reached in the tissue fluids.

F) B) and D)
G) B) and C)

Correct Answer

verifed

verified

Which of the following is an inorganic component of the bone matrix?


A) Proteoglycans
B) Glycoproteins
C) Collagen
D) Hydroxyapatite
E) Glycosaminoglycans

F) A) and E)
G) All of the above

Correct Answer

verifed

verified

Phosphate is necessary for all of the following except __________.


A) ATP
B) DNA
C) phospholipids
D) RNA
E) amino acids

F) B) and E)
G) A) and E)

Correct Answer

verifed

verified

A vertebra is considered a long bone.

A) True
B) False

Correct Answer

verifed

verified

The most common bone disease is __________.


A) osteomyelitis
B) osteoporosis
C) osteosarcoma
D) osteomalacia
E) rickets

F) A) and B)
G) B) and D)

Correct Answer

verifed

verified

Which of the following is not a function of the skeleton?


A) Storage of calcium and phosphate ions
B) Storage of red blood cells
C) Providing support for most muscles
D) Protecting the brain
E) Protecting the spinal cord

F) D) and E)
G) C) and D)

Correct Answer

verifed

verified

Bones,cartilage,and ligaments are tissues and organs of the skeletal system.

A) True
B) False

Correct Answer

verifed

verified

When ____________ become enclosed in lacunae,they become cells called _____________.


A) osteogenic cells;osteoblasts
B) osteoblasts;osteoclasts
C) osteoblasts;osteocytes
D) osteocytes;osteoclasts
E) osteocytes;osteoblasts

F) B) and E)
G) C) and D)

Correct Answer

verifed

verified

What would you find in the marrow cavity of the diaphysis of an adult humerus (arm bone) ?


A) Periosteum
B) Hemopoietic tissue
C) Red bone marrow
D) Yellow bone marrow
E) Compact bone

F) A) and D)
G) A) and B)

Correct Answer

verifed

verified

Chondrocytes multiply in the zone of __________ of the metaphysis.


A) reserve cartilage
B) cell proliferation
C) cell hypertrophy
D) calcification
E) bone deposition

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

Red bone marrow does not contain __________.


A) myeloid tissue
B) yellow bone marrow
C) hemopoietic tissue
D) white blood cells
E) red blood cells

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

Mature bones are remodeled throughout life via a process known as __________.


A) intramembranous ossification
B) endochondral ossification
C) interstitial growth
D) appositional growth
E) metaphysical growth

F) B) and D)
G) C) and D)

Correct Answer

verifed

verified

Which of the following is the correct sequence of events in the healing of a bone fracture?


A) Bone remodeling → soft callus formation → hard callus formation → hematoma formation
B) Bone remodeling → hard callus formation → soft callus formation → hematoma formation
C) Hematoma formation → soft callus formation → hard callus formation → bone remodeling
D) Hematoma formation → hard callus formation → soft callus formation → bone remodeling
E) Soft callus formation → hard callus formation → hematoma formation → bone remodeling

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

Osseous tissue is a(an) ____________ tissue.


A) connective
B) epithelial
C) dense regular
D) dense irregular
E) reticular

F) C) and D)
G) A) and C)

Correct Answer

verifed

verified

Calcium plays an essential role in all of the following except __________.


A) muscle contraction
B) exocytosis
C) blood clotting
D) DNA synthesis
E) communication among neurons

F) A) and C)
G) A) and D)

Correct Answer

verifed

verified

Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.

A) True
B) False

Correct Answer

verifed

verified

If a thyroid tumor secreted an excessive amount of calcitonin,we would expect ___________.


A) an elevated level of osteoclast activity
B) an elevated level of osteoblast activity
C) a reduced rate of endochondral ossification
D) a rise in blood calcium concentration
E) increasingly brittle bones

F) B) and E)
G) None of the above

Correct Answer

verifed

verified

Intramembranous ossification produces the __________.


A) irregular bones of the vertebrae
B) flat bones of the skull
C) long bones of the limbs
D) short bones of the wrist
E) short bones of the ankle

F) C) and D)
G) A) and B)

Correct Answer

verifed

verified

The result of blood calcium and phosphate levels being too low for normal deposition is a softness of the bones called __________ in children and __________ in adults.


A) osteomalacia;rickets
B) rickets;osteomalacia
C) osteoporosis;osteomalacia
D) osteomyelitis;osteosarcoma
E) osteomyelitis;osteomalacia

F) A) and B)
G) A) and C)

Correct Answer

verifed

verified

Which one of the following bone cells would have the greatest number of lysosomes?


A) Osteoblasts
B) Osteoclasts
C) Osteocytes
D) Osteogenic cells
E) Stem cells

F) B) and C)
G) A) and B)

Correct Answer

verifed

verified

Showing 41 - 60 of 67

Related Exams

Show Answer