What critical developmental process/es are altered following retinoic acid-exposure, which may cause protrusion of the spinal cord through the vertebral arches? Select one or more: A. Primary neurulation, where the neural plate creases inward until the edges come in contact and fuse. OB. Secondary neurulation, where the tube forms by hollowing out of the interior of a solid precursor. C. Regulation of neural crest migration from the neural tube to generate segmental ganglia. D. Abnormal somite formation affecting the development of muscles of the back.

If the neural folds failed to fuse, what key structures/organs do you believe might be impacted and potentially fail to develop?

Identify these structures

Mike is a 34-year old male who reports to the ER after a motorcycle accident. MRI results show that he transected (cut across) the spinal cord between T1 and L1. Which of the following best describe his condition? O paraplegia O hemiplegia quadriplegia O spinal shock only O none of the above Next « Previous

What is the spinal cord? Ofwhich elements is the spinalcord constituted?

35 concerning the spinal cord which statement is true? * The correct order for the parts of the spinal cord, from to inferior to superior is: Coccygeal - Sacral - lumbar - Thoracic- Cervical The horizontally oriented fold of dura mater that separates the occipital and temporal lobes of the cerebrum from the cerebellum is the falx cerebelli Gray commissure contains myelinated axons and serves as a communication route between the right and left sides of the gray matter in the spinal cord. Subdural space is a space associated with the spinal cord meninges contains cerebrospinal fluid The largest of the four dural septa, this large, sickle-shaped vertical fold of dura mater separates the left and right cerebral hemispheres is superior sagittal sinus

Explain why a person with myasthenia gravis might prefera soft diet. List several potential complications of acontinued soft diet.

Suggest some reasons why the aging process variesamong different individuals.

Describe the inheritance of Huntington’s disease and theonset and early signs.

Describe how a spinal nerve exits from the vertebral column?