Neurobiology Option A

The neural tube develops from the:

• ectoderm

• mesoderm

• endoderm

Incomplete closure of the neural tube results in:

• Muscular dystrophy

• Spina bifida

• Multiple sclerosis

Glial cells:

• Provide nutritional and structural support for neurons

• Provide aid to muscle cells

• are part of the embryonic layers

Migration of neurons from the CNS involves:

• CAM

• Growth cones

• Chemical messages

• All of the above

During development, multiple synapses are formed.

• True

• False

Muscle fibers do not compete for innervation.

• True

• False

Which layer of the embryo becomes the brain?

• Ectoderm

• Mesoderm

• Echinoderm

• Endoderm

Which disease is characterized by incomplete closure of the neural tube?

• Multiple Sclerosis

• Scoliosis

• Spina Bifida

• Alzheimers

A dendrite conducts nerve impulses ________ the cell body.

• away from 
• towards
• around, bypassing
• both towards and away from

Schwann cells produce layers of membrane containing myelin, which provides:

• nutrition
• insulation
• immunity
• DNA transcription