21. Which structure connects the left and right hemispheres of the brain?
a) Medulla oblongata
b) Hypothalamus
c) Corpus callosum
d) Cerebellum
22. What is the primary function of the somatic nervous system?
a) Controls involuntary actions
b) Controls the fight or flight response
c) Controls voluntary muscle movements
d) Regulates body temperature and thirst
23. Which of the following is responsible for transmitting signals from the senses to the brain?
a) Motor neurons
b) Sensory neurons
c) Interneurons
d) Olfactory neurons
24. What is the main function of the autonomic nervous system?
a) Controls involuntary actions
b) Controls the fight or flight response
c) Controls voluntary muscle movements
d) Regulates body temperature and thirst
25. Which cranial nerve is responsible for controlling chewing and facial sensations?
a) Olfactory nerve
b) Optic nerve
c) Facial nerve
d) Trigeminal nerve
