Question

Why do the hands, feet, and breasts have more lymphatic vessels for host defense than other areas of the human body?

1) They have a high risk for infection due to frequent contact.
2) They have a greater density of nerves.
3) They require complex movement of fluids from the extremities.
4) They are located a long distance from the thalamus.

Answer 1

The hands, feet, and breasts have more lymphatic vessels for host defense due to their high risk for infection, complex fluid movement, and greater nerve density.

Step-by-step explanation:

The hands, feet, and breasts have more lymphatic vessels for host defense than other areas of the human body for a few reasons:

1. They have a high risk for infection due to frequent contact. These areas are in constant contact with the outside environment, making them more susceptible to infections.
2. They require complex movement of fluids from the extremities. The hands, feet, and breasts often need to move fluids, such as lymph, from the extremities back towards the circulatory system.
3. They have a greater density of nerves. Nerves play a role in the immune response, so areas with a higher density of nerves might have more lymphatic vessels to support immune function.