Quiz 2 Flashcards
(14 cards)
What is the first event in the sequence of bone healing after a fracture?
Hematoma forms
Initial response to fracture involves bleeding and clot formation.
What occurs after hematoma formation in the bone healing process?
Fibroblasts, capillary buds, and osteoblasts move into the wound. Wound granulation tissue and cartilage are formed
Inflammatory cells invade; fibroblasts and chondroblasts form soft callus.
What is formed by osteoblasts during bone healing?
Woven bone, known as callus formation
Osteoblasts replace cartilage with woven bone.
What follows hard callus formation in the bone healing process?
Bony callus becomes strong lamellar bone
This phase strengthens the bone after initial healing.
What is the final phase of bone healing?
Bone is reshaped through remodeling
This restores normal bone shape.
In addition to the skull, what other structures make up the _______ skeleton?
Axial skeleton
The axial skeleton supports and protects the brain, spinal cord, and thoracic organs.
True or False: Cerebral palsy is a progressive condition.
False
Cerebral palsy is non-progressive, but clinical manifestations change with growth.
True or False: Staphylococcus aureus can cause osteomyelitis in newborns and older children.
True
Staph aureus is the most common pathogen in hematogenous osteomyelitis in both neonates and children.
What is one way a muscle contracts more forcefully?
Recruiting more motor units
Stronger contractions occur by increasing the number of motor units recruited, not by changing individual fiber force.
Which minerals are stored in bone? (List all that apply)
- Carbonate
- Phosphate
- Magnesium
- Calcium
Bone stores about 99% of the body’s calcium and 85% of its phosphate.
What is the management for a female full-term infant who was breech at 24–26 weeks but vertex at delivery?
No actions required, routine newborn care
Breech position late in pregnancy increases risk of developmental dysplasia of the hip (DDH).
What is the recommended next step for a female infant born at 36 weeks via C-section for breech?
Schedule a hip ultrasound at 4–6 weeks
AAP guidelines recommend ultrasound for breech presentation.
What is the management for a male full-term infant who was born via C-section for breech?
Schedule a hip ultrasound at 4–6 weeks
Males have lower risk than females, but still require monitoring.
What is the management for a male infant with a mother who has a history of developmental dysplasia of the hip?
Schedule a hip ultrasound at 4–6 weeks
Family history increases risk and may warrant earlier imaging.
