BIOS 252 COMPREHENSIVE EXAM SCRIPT
SOLVED QUESTIONS GRADED A+
◉ Ischemic stroke
Answer: Loss of blood flow causes neuronal death. A left frontal lobe
stroke may produce right-sided motor deficits due to pathway
crossover.
◉ Crossover (decussation)
Answer: Many motor and sensory pathways cross to the opposite
side of the body.
◉ Lower motor neurons
Answer: Carry motor commands from the CNS to skeletal muscles.
◉ First-order neurons
Answer: Sensory neurons that carry information from receptors into
the CNS.
◉ Endoneurium
Answer: Connective tissue layer surrounding each individual axon.
, ◉ Frontal lobe
Answer: Movement, planning, decision making, personality, and
voluntary motor control.
◉ Parietal lobe
Answer: Somatic sensory processing.
◉ Temporal lobe
Answer: Auditory processing, memory, and language
comprehension.
◉ Occipital lobe
Answer: Vision and visual processing.
◉ Insula
Answer: Involved in taste(not smell), emotion, visceral sensation,
and self-awareness.
◉ Motor pathways
Answer: Transmit commands from the brain to muscles.
◉ Sensory pathways
SOLVED QUESTIONS GRADED A+
◉ Ischemic stroke
Answer: Loss of blood flow causes neuronal death. A left frontal lobe
stroke may produce right-sided motor deficits due to pathway
crossover.
◉ Crossover (decussation)
Answer: Many motor and sensory pathways cross to the opposite
side of the body.
◉ Lower motor neurons
Answer: Carry motor commands from the CNS to skeletal muscles.
◉ First-order neurons
Answer: Sensory neurons that carry information from receptors into
the CNS.
◉ Endoneurium
Answer: Connective tissue layer surrounding each individual axon.
, ◉ Frontal lobe
Answer: Movement, planning, decision making, personality, and
voluntary motor control.
◉ Parietal lobe
Answer: Somatic sensory processing.
◉ Temporal lobe
Answer: Auditory processing, memory, and language
comprehension.
◉ Occipital lobe
Answer: Vision and visual processing.
◉ Insula
Answer: Involved in taste(not smell), emotion, visceral sensation,
and self-awareness.
◉ Motor pathways
Answer: Transmit commands from the brain to muscles.
◉ Sensory pathways