Chapter 5 Flashcards
(42 cards)
Select the most correct statement concerning skin cancer
Melanomas are rare but must be removed quickly to prevent them from metastasizing
____ is an inherited condition that affects the heme pathways; it leaves the skin scarred and gums degenerated, and may have led to the folklore about vampires
Porphyria
A need would pierce the epidermal layers of the forearm in which order?
corneum, granulosum, spinosum, basale
The major regions of a hair shaft include all of the following EXCEPT
external root sheath
Acne is a disorder associated with
sebaceous glands
The dermis
has two layers
Which muscles attached to the hair follicles cause goose bumps?
arrestor pili
If a splinter penetrated the skin into the second epidermal layer of the sole of the food, which cells would be damaged
lucidum
Which of the following cutaneous receptors is specialized for the reception of touch or light pressure?
Meissner’s corpuscle
Which statement correctly explains why hair appears the way it does?
Kinky hair has flat, ribbonlike hair shafts
Sudoriferous glands vary in distribution over the surface of the body. Which of the following is correct?
Ceruminous glands secrete cerumen, which is thought to deter insects.
Although the integument is a covering, it is by no mean simple, and some of its functions includ
resident macrophage - like cells whose function is to ingest antigenic invaders and present them to the immune system
The function of the root hair plexus is to
allow the hair to assist in touch sensation
Vernix caseosa is a
whitish material produced by fetal sebaceous glands
The ___ gland is a modified sudoriferous gland that secretes wax
ceruminous
Nutrients reach the surface of the skin (epidermis) through the process of
diffusing through the tissue fluid from blood vessels in the dermis
The reason the hypodermic acts as a shock absorber is that
the major part of its makeup is adipose, which serves as an effective shock absorber
Which type of skin cancer appears as a scaly reddened papule and tends to grow rapidly and metastasize?
Squamous cell carcinoma
Keratinocytes are an important epidermal cell because they
produce a fibrous protein that gives the skin much of its protective properties
Melanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes
accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer
The epidermis consists of five layers of cells, each layer with a distinct role to play in the health, well-being and functioning of the skin. Which of the following layers is responsible for cell division and replacement?
Stratum basale
The integumentary system is protected by the action of cells that arise from bone marrow and migrate to the epidermis. Which of the following cells serve this function?
macrophages called epidermal dendritic cells
Water loss through the epidermis could cause serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin?
Lamellated granules of the cells of the stratum granulosum, a glycolipid that is secreted into extracellular spaces.
The dermis is a strong, flexible connective tissue layer. Which of the following cell types are likely to be found in the dermis?
fibroblasts, macrophages, and mast cells
