Question

19 multiple choice 1 point
which of the following are photoreceptors?
rods and cones
taste buds and hair cells
rods and hair cells
hair cells and cones

20 multiple choice 1 point
what type of pain results from damage to the neurons of the nervous system?
inflammatory pain
neuropathic pain
congenital insensitivity to pain
thermoception

Explanation:

Identify photoreceptors in the visual system

Using the Sensation and Perception knowledge point, we analyze the sensory receptors responsible for vision. Photoreceptors are specialized neurons in the retina that convert light into electrical signals. The two primary types of photoreceptors are rods, which detect light intensity (for night vision), and cones, which detect color and fine detail. Hair cells are mechanoreceptors for hearing, and taste buds contain chemoreceptors for gustation. Therefore, rods and cones are the correct photoreceptors.

Classify pain from nervous system damage

We analyze the physiological mechanisms of pain. Pain caused by tissue damage and subsequent inflammation is called inflammatory pain. Pain that arises directly from damage or disease affecting the somatosensory nervous system (the neurons themselves) is classified as neuropathic pain. Congenital insensitivity to pain is a genetic condition where pain cannot be felt, and thermoception is the sensation of temperature. Thus, damage to neurons results in neuropathic pain.

Answer:

Question 19

• rods and cones (Correct answer)
• taste buds and hair cells
• rods and hair cells
• hair cells and cones

Question 20

• inflammatory pain
• neuropathic pain (Correct answer)
• congenital insensitivity to pain
• thermoception