Which retinal receptors are mainly responsible for vision in dim light?
Correct answer: A. Rods, which detect light intensity
- A. Rods, which detect light intensity
- B. Cones, which detect light intensity
- C. Rods, which detect colour details
- D. Cones, which detect body position
Explanation
Rods are highly sensitive to low levels of light and support night or dim-light vision, but they do not provide colour vision. Cones work best in bright light and provide colour and fine visual detail, so the other options confuse their functions.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Nervous System and Special Senses
The nervous system covers neurons, neuroglia, nerve impulses, synapses, reflex arcs, and the organization of the central and peripheral nervous systems. It also explains the autonomic divisions and the receptors and pathways for vision, hearing, balance, taste and smell, distinguishing sensory reception from conscious perception.
Practise Nervous System and Special Senses
40 free Nervous System and Special Senses MCQs from Anatomy and Physiology for Nursing, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Anatomy and Physiology for Nursing questions like this
Anatomy and Physiology for Nursing is on 4 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Nervous System and Special Senses questions
A patient can detect the smell of freshly cooked food but cannot consciously identify its flavour after chewing. Which statement best explains this finding?
Which structure in the inner ear contains the sensory hair cells that convert sound vibrations into nerve impulses?
A nurse asks a patient to stand with the eyes closed. The patient loses balance because information about limb position is impaired. Which sensory system is most directly involved?
A patient has a lesion affecting the thalamus. Which function may be impaired because the thalamus normally acts as a major relay for sensory information?