Question

question 73
0.25 pts
the areas specializing in language functions are found in the left cerebral hemisphere in:
about 10% of the population.
about 50% of the population.
about 90% of the population.
all people.
question 74
0.25 pts
parasympathetic neuron cell bodies are located in:
the white columns of the sacral segments of the spinal cord.
the lateral gray columns of thoracic segments of the spinal cord.
nuclei of the brainstem and the lateral gray columns of the sacral cord.
collateral ganglia.
question 75
0.25 pts
several \vital centers\ are located in the:
basal ganglia.
cerebrum.
cerebellum.
medulla.

Explanation:

Question 73

Language - related areas (like Broca's and Wernicke's areas) are predominantly in the left cerebral hemisphere for about 90% of the population (including right - handed and most left - handed people). 10% is too low, 50% is incorrect, and “all people” is wrong as some left - handed individuals may have language areas in the right or distributed.

Parasympathetic neuron cell bodies are in the brainstem nuclei (like oculomotor, facial, glossopharyngeal, vagus nuclei) and the lateral gray columns of the sacral spinal cord (S2 - S4). The white columns of sacral segments don't have cell bodies. Thoracic segments' lateral gray columns are for sympathetic. Collateral ganglia are for sympathetic post - ganglionic neurons.

The medulla oblongata has vital centers for functions like respiration, heart rate, and blood pressure regulation. Basal ganglia are for motor control and cognition. Cerebrum is for higher - order functions. Cerebellum is for balance and coordination.

Answer:

C. about 90% of the population.

Question 74