BIOS 252 MIDTERM EXAM |RATIONALE
QUESTIONS (LATEST 2024-2025)
1. What layer of meninges would you find directly on the surface of the brain?
a. Dura Mater
b. Arachnoid Mater
c. Pia Mater
d. Subarachnoid Mater
e. Cranial mater
2. Which glial cell is responsible for creating the myelin sheath in the central nervous system?
a. Schwann cells
b. Mesenglial cells
c. Astrocytes
d. Oligodendrocytes
e. Ependymal cells
3. How many pairs of Sacral nerves are there in the human body?
a. 8
b. 12
c. 5
d. 1
e. 10
4. Where would you find the nerve cell body of the efferent/motor nerve?
a. Ventral horn
b. Dorsal horn
c. Lateral horn
d. Ventral root
e. Dorsal root
5. The lower limbs (incoming sensory signals and outgoing motor signals) are represented in the
enlargement of the spinal cord.
a. Cervical
b. Thoracic
c. Lumbar
d. Sacral
e. Cranial
6. Which plexus gives rise to the phrenic nerve?
a. Cervical plexus
b. Brachial plexus
c. Lumbar plexus
d. Sacral plexus
e. Coccygeal plexus
QUESTIONS (LATEST 2024-2025)
1. What layer of meninges would you find directly on the surface of the brain?
a. Dura Mater
b. Arachnoid Mater
c. Pia Mater
d. Subarachnoid Mater
e. Cranial mater
2. Which glial cell is responsible for creating the myelin sheath in the central nervous system?
a. Schwann cells
b. Mesenglial cells
c. Astrocytes
d. Oligodendrocytes
e. Ependymal cells
3. How many pairs of Sacral nerves are there in the human body?
a. 8
b. 12
c. 5
d. 1
e. 10
4. Where would you find the nerve cell body of the efferent/motor nerve?
a. Ventral horn
b. Dorsal horn
c. Lateral horn
d. Ventral root
e. Dorsal root
5. The lower limbs (incoming sensory signals and outgoing motor signals) are represented in the
enlargement of the spinal cord.
a. Cervical
b. Thoracic
c. Lumbar
d. Sacral
e. Cranial
6. Which plexus gives rise to the phrenic nerve?
a. Cervical plexus
b. Brachial plexus
c. Lumbar plexus
d. Sacral plexus
e. Coccygeal plexus
