Question

1. which layer of the dermis are the free - nerve endings found within? 10. what do the free nerve endings sense? in order to deliver blood to and from the papillary layer of the dermis (which can pass oxygen to the epidermis), capillary nets made of small blood vessels are often found in the papillary layer of the dermis. on page 6, label the capillary net (5) and color it purple. label the artery (6) entering the capillary net and color it red. label the vein (7) leaving the capillary net and color it dark blue. 11. what layer of the dermis is the capillary net found within? 12. what is the function of the capillary net? the reticular layer of the dermis the remaining structures are deep in the dermis; therefore, they are in the reticular layer of the dermis. hair follicles are tubular tunnels deep inside the dermis from which hairs grow from. on page 6, label the hair follicle (8) and color it light blue. you can color the hair inside the follicle whatever color your own hair is! 13. what layer of the dermis is the hair follicle found within? 14. what is the function of the hair follicle? you know that your hair stands on end when you are cold, but do you know how this happens? attached to your hair follicles are bundles of smooth muscle cells called arrector pili muscles. the word \pili\ means hair. the word \arrector\ comes from the latin root

ect\ which means straight. when you are cold, these tiny muscles contract to cause your hair to stand straight up. on page 6, label the arrector pili muscles (9) and color it gray. 15. arrector pili muscles are always attached to what? 16. what type of muscle tissue are the arrector pili muscles made of? 17. what is the function of arrector pili muscles? the reticular layer of the dermis holds its own sensory receptors: the pacinian corpuscles. these large receptors are buried deep within the dermis; therefore, they can only sense heavy pressure, such as bumping into something. on page 6, label the pacinian corpuscle (10) and color it dark green. 18. look back if you need help. what are two other sensory receptors within your skin? 19. what do the pacinian corpuscles sense? the reticular layer is home to two types of glands: sudoriferous glands and sebaceous glands. sudoriferous glands are sweat glands. they are found over the entire skin surface except for the nipples and external genitals! each person has an estimated 3 million sweat glands. sebaceous glands are oil glands. if you have greasy hair, you wont be surprised that most of these glands are found attached to a hair follicle.

Explanation:

1. Free - nerve endings are found in the papillary layer of the dermis.
2. They sense pain, temperature, and light touch.
3. The capillary net is found in the papillary layer of the dermis.
4. Its function is to deliver blood to and from the papillary layer of the dermis and pass oxygen to the epidermis.
5. The hair follicle is found in the reticular layer of the dermis.
6. Its function is to be the site from which hair grows.
7. Arrector pili muscles are always attached to hair follicles.
8. They are made of smooth muscle tissue.
9. Their function is to contract and cause hair to stand straight up.
10. Two other sensory receptors in the skin are Meissner's corpuscles and Merkel cells.
11. Pacinian corpuscles sense heavy pressure.

Answer:

1. Papillary layer
2. Pain, temperature, light touch
3. Papillary layer
4. Deliver blood to and from papillary layer, pass oxygen to epidermis
5. Reticular layer
6. Site from which hair grows
7. To hair follicles
8. Smooth muscle tissue
9. Contract to make hair stand straight up
10. Meissner's corpuscles, Merkel cells
11. Heavy pressure