Question

Which of the following statements is TRUE? (Points : 1) The dermis is avascular There are few sensory nerve fibers in the dermis. Collagen fibers within the dermis are flexible and offer no resistance to overstretching. Dermal papillae project into and anchor the epidermis to the dermis.

Answer 1

The true statement is that dermal papillae project into and anchor the epidermis to the dermis. The dermis contains blood vessels and many sensory nerve fibers, and its collagen fibers provide strength and resistance to overstretching.

Step-by-step explanation:

Among the statements given about the dermis, the one that is TRUE is that dermal papillae project into and anchor the epidermis to the dermis. The dermis is highly vascular, containing numerous blood vessels that provide nutrients to and remove wastes from dermal cells as well as the cells in the lowest layer of the epidermis. It is not avascular. Additionally, the dermis is rich in sensory nerve fibers which allow the skin to feel touch, pressure, heat, cold, and pain. Also, collagen fibers within the dermis provide strength and contribute to the skin’s resistance to overstretching, making the skin tough and resilient. The accessory structures of the skin, such as hair follicles and sweat glands, are also located within the dermis.

Answer 2

TRUE: Dermal Papillae project into and anchor the epidermis to the dermis.

The dermal papillae increases the surface area between the epidermis and dermis. It forms dermal ridges in hands, feet, and fingertips. It extends to the epidermis and contains blood vessels that supply epidermis with nutrients.

Aside from dermal papillae, the following are found in the dermis.
1) fibroblasts
2) adipocytes
3) macrophages
4) nerve endings
5) hair follicles
6) smooth muscles
7) glands
8) lymphatic vessels