ATI LPN
Quizlet Adult Medical Surgical Head Injury Monitoring Neurological Status Questions
Question 1 of 5
The ability to respond to a stimulus is termed:
Correct Answer: B
Rationale: Irritability is the ability of neurons (and other cells) to respond to stimuli, distinct from conductivity (signal transmission).
Question 2 of 5
Squirrels don't come out at night because they can't see in the dark. This is because
Correct Answer: B
Rationale: Squirrels, diurnal animals, lack rods (night vision photoreceptors) and rely on cones, limiting their vision in low light.
Question 3 of 5
The function of the Visual system include all of the following EXCEPT
Correct Answer: A
Rationale: The visual system detects relative intensity differences, not absolute intensity, for contrast; it also regulates rhythms (via SCN) and controls optics.
Question 4 of 5
We learned that in visual processing information from the retina is relayed in the thalamus before it is sent to relevant cortical area. The corresponding thalamic relay of the auditory system is:
Correct Answer: B
Rationale: The medial geniculate nucleus (MGN) relays auditory information from the inferior colliculus to the auditory cortex.
Question 5 of 5
High resolution tactile discrimination by the fingertips
Correct Answer: D
Rationale: Fine tactile discrimination relies on the dorsal column-medial lemniscus system, using small-receptive-field receptors like Merkel’s disks.