Anatomy chapter 5
What is a reticular layer?
deep layer of the dermis, dense irregular collagenous connective tissue
What is a hair shaft?
portion of the hair that projects from the skin's surface
What are pacinian corpuscles?
pressure receptor in the dermis
What is dermal papillae?
projections of the dermis that indent the epidermis
What are sweat glands?
secrete product through pore
What is the sebaceous gland?
secretes sebum
What is a hair follicle?
sheath of epithelial and connective tissue around a hair
Number the layers of the epidermis, with 1 being the most superficial layer and 5 being the deepest layer Stratum lucidum Stratum basale Stratum corneum Stratum spinosum Stratum granulosum
stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale
What is the papillary layer?
superficial layer of the dermis, loose connective tissue
Fingerprints are the result of A. Epidermal ridges B. Projections form the hypodermis C. Epidermal papillae that create dermal ridges D. Dermal papillae that house sebaceous glands
A. Epidermal ridges
From where do the cells of the epidermis obtain oxygen and nutrients? A. From blood vessels in the epidermis B. Diffusion from blood vessels in the dermis C. Diffusion from the air D. From the blood vessels in other epithelial tissues
B. Diffusion from blood vessels in the dermis
Which layer of the epidermis contain living cells A. Stratum granulosum only B. Stratum corneum, stratum granulosum, stratum lucidum C. Stratum basale, stratum spinosum, stratum granulosum D. All of the layer of the epidermis containing living cells E. None of the layers of the epidermis contain living cells
C. Stratum basale, stratum spinosum, stratum granulosum
The main cell type in the skin is the A. Melanocyte B. Reticulocyte C. Monocyte D. Keratinocyte
D. Keratinocyte
The dividing cells of a nail are located in the A. Nail fold B. Nail plate C. Nail bed D. Nail matrix
D. Nail matrix
The two types of receptors in the skin that detect fine touch are the A. Merkel disks B. Pacinian corpuscles C. Meissner corpuscles D. Both a and b are correct E. Both a and c are correct
E. Both a and c are correct
Which of the following are characteristics of thick skin? (circle all that apply) o Located over palms and the soles of the feet A. Contains hair and arrector pili muscles B. Contains sweat glands C. Very thick stratum corneum D. Contains sebascous glands E. Contains a stratum lucidum
Located over palms and the soles of the feet, Contains sweat glands, Very thick stratum corneum, Contains a stratum lucidum
