Question

where is the correct location of the subarachnoid space involving two layers of meninges?
between the arachnoid mater and the epidural mater
between the arachnoid mater and the pia mater
between the arachnoid mater and the dura mater
between the dura mater and the epidural mater
question 18 0.75 pts
which one of these answers is a characteristic of the spinocerebellar tracts?
terminate in the spinal cord
carry information about muscle or tendon stretch to the cerebellum
give rise to conscious experience of perception
are found in the dorsal columns of the spinal cord

Explanation:

First Question (Subarachnoid Space Location)

The meninges have three layers: dura mater, arachnoid mater, and pia mater. The subarachnoid space is located between the arachnoid mater and the pia mater, containing cerebrospinal fluid. The other options are incorrect: the epidural space is between dura mater and vertebrae, the space between arachnoid and dura is the subdural space, and the space between dura and epidural mater is not a standard meningeal space.

Spinocerebellar tracts are part of the somatosensory system. They carry proprioceptive information (like muscle/tendon stretch) to the cerebellum for motor coordination. They do not terminate in the spinal cord (they go to cerebellum), do not give conscious perception (that’s dorsal columns for some senses), and are not in dorsal columns (dorsal columns have fasciculus gracilis/cuneatus).

Answer:

B. Between the arachnoid mater and the pia mater

Second Question (Spinocerebellar Tracts Characteristic)