integumentary system
8) The outermost layer of the epidermis is keratinized and known as stratum ________.
corneum
26) Nutrients reach the surface of the skin (epidermis) through the process of ________.
diffusion
12) The type of gland responsible for body temperature regulation is the ________ gland.
eccrine (sweat or sudoriferous)
25) Which of the following kills bacteria and prevents bacterial invasions of the skin?
A) sebum
19) A needle pierces through the epidermal layers of the forearm in the following order: 1. stratum basale 2. stratum corneum 3. stratum granulosum 4. stratum lucidum 5. stratum spinosum
D) 2, 3, 5, 1, 4
14) Which of the following is a vital function of the skin?
It converts modified epidermal cholesterol to vitamin D.
29) Which of the following is an indication of melanoma?
a pigmented spot that contains areas of different colors
9) "Goosebumps" are caused by contractions of the ________.
arrector pili muscles
23) People who produce a lot of melanin have a skin tone that is ________.
brown
20) Which of the following homeostatic imbalances is caused by a herpes simplex infection?
cold sores
18) The two main layers of skin are ________.
epidermis and dermis
13) The skin and its derivatives (nails, glands, and hairs) form the ________.
integumentary system
15) Although you get wet while swimming, a tough protein within the skin prevents it from soaking up moisture like a sponge. This substance is ________.
keratin
11) Hair color is due to a pigment known as ________.
melanin
21) The "tanning" effect (darkening of the skin) that occurs when a person is exposed to the sun is due to
melanin
27) Fingerprints and footprints in the epidermis are created by dermal papillae present in the
papillary layer of the dermis
10) The type of burn that involves injury to the epidermis and the upper region of the dermis and is red, blistered, and painful is termed as a ________-degree burn.
second
7) The part of a hair that projects from the surface of the scalp or skin is called the ________.
shaft
The epidermis is composed of ________.
stratified squamous epithelium
24) A splinter penetrates to the deepest layer of the epidermis on your foot. This layer is the
stratum basale
22) The layer of the epidermis in which cells die because of their inability to get nutrients and oxygen is the clear layer called ________.
stratum lucidum
17) Jan got her microscope slides mixed up in lab as they were unlabeled. The slide with abundant adipose tissue should be labeled as the ________.
subcutaneous tissue
Which vitamin is synthesized by the skin?
vitamin D