Special Senses

Front

Which cells are specialized for vision in dim light?

Back

Rods are specialized photoreceptor cells in the retina that are responsible for vision in low light conditions.

Front

What photopigment do cones require for breakdown?

Back

Vitamin A is essential for the breakdown of the photopigment in cones, which are responsible for color vision.

Front

What causes phantom pain?

Back

Phantom pain occurs because the remaining ends of the sensory nerves are still stimulated, leading to the sensation of pain in a limb that is no longer there.

Front

What is it called when pain from a visceral organ is felt in another area of the body?

Back

Referred pain is the sensation of pain in a location different from the source of the pain, often seen with visceral organ issues.

Front

What is the function of the lacrimal apparatus?

Back

The lacrimal apparatus is responsible for the production and drainage of tears.

Front

What are the two types of photoreceptor cells in the retina?

Back

The two types of photoreceptor cells are rods and cones. Rods are for low-light vision, while cones are for color vision.

Front

What is the role of cones in vision?

Back

Cones are responsible for color vision and function best in bright light conditions.

Front

What is the significance of Vitamin A for vision?

Back

Vitamin A is crucial for the synthesis of photopigments in the retina, particularly in cones, which are essential for color vision.

Front

What is the difference between acute pain and chronic pain?

Back

Acute pain is a short-term pain that typically resolves with healing, while chronic pain persists for a longer duration, often beyond the expected period of healing.

Front

What is the function of the cornea in the eye?

Back

The cornea is the transparent front part of the eye that refracts light and helps focus it onto the retina.