Chapter 20: Alterations of Neurologic Function in Children

Chapter 20: Alterations of Neurologic Function in Children

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. The neural groove closes dorsally during which week of gestational life?

a.	Second	c.	Eighth
b.	Fourth	d.	Twelfth

 

 

ANS:  B

During the fourth gestational week, the neural groove deepens, its folds develop laterally, and it closes dorsally to form the neural tube, epithelial tissue that ultimately becomes the central nervous system (CNS). The second week is too early, and the other options represent times periods after the groove closes.

 

PTS:   1                    REF:   Page 660

 

2. Which nutritional deficiency in a pregnant woman is associated with neural tube defect (NTD)?

a.	Iron	c.	Zinc
b.	Vitamin C	d.	Folate

 

 

ANS:  D

Maternal folate deficiency is associated with NTDs, but the specific mechanism that relates to how folate supplements prevent these anomalies is unknown. The other options are not thought to cause such a defect.

 

PTS:   1                    REF:   Page 663

 

3. Which defect of neural tube closure is most common?

a.	Anterior	c.	Lateral
b.	Posterior	d.	Midline

 

 

ANS:  B

Posterior defects are most common. The other options are not the most common.

 

PTS:   1                    REF:   Page 663

 

4. What is the anomaly in which the soft bony component of the skull and much of the brain is missing?

a.	Anencephaly	c.	Cranial meningocele
b.	Myelodysplasia	d.	Hydrocephaly

 

 

ANS:  A

Anencephaly is an anomaly in which the soft, bony component of the skull and much of the brain are missing. The other options do not represent this condition.

 

PTS:   1                    REF:   Pages 663-664

 

5. The most common cause of obstructive hydrocephalus in infants is:

a.	Obstructed arachnoid villi
b.	Stenosis of the aqueduct of Sylvius
c.	Excessive production of cerebrospinal fluid
d.	Impaired cerebrospinal fluid circulation in the subarachnoid space

 

 

ANS:  B

Congenital aqueduct stenosis most commonly causes obstructive hydrocephalus. The other options do not represent the most common cause of this condition.

 

PTS:   1                    REF:   Page 669