06 Feb Decrease in macrophage number
BIOS251 Anatomy & Physiology I with Lab
Week 4 Chapter 5 Assessment
The skin is also known as a (the) _________.
cutaneous membrane
serous membrane
dermal membrane
reticular membrane
synovial membrane
Which type of epithelium makes up the epidermis?
stratified cuboidal
stratified columnar
keratinized stratified cuboidal
keratinized stratified squamous
keratinized stratified columnar
The hyponychium is the __________ of the nail.
free edge
cuticle
nail bed
nail body
nail root
Actual growth of the nail occurs in the __________.
hyponichium
eponychium
lunula
nail root
nail matrix
Which feature(s) of the skin protect(s) us against microbes such as bacteria?
The many layers of keratinized cells form a barrier against microbes
Sebum contains compounds which kill bacteria
Sweat has an acidic pH which suppresses microbial growth
Langerhans cells can alert the immune system should microbes invade
All of these are correct
Which of the following would not be a change to the skin that occurs with aging?
rosacea
formation of lanugo
changes in collagen and elastin fibers in the dermis
diminished numbers of Langerhans cells
decrease in functioning melanocytes
Which is the correct sequence of phases for deep wound healing?
inflammation, proliferation, migration, maturation
inflammation, migration, proliferation, maturation
proliferation, inflammation, migration, maturation
proliferation, migration, inflammation, maturation
Which of the following best describes the events occurring at point B in the diagram of deep wound healing shown below?
Blood clot is forming.
New collagen fibers are forming.
Damaged blood vessels are being repaired.
Epithelium is migrating across wound.
Scar tissue is forming.
From which of the primary germ layers of the embryo does the epidermis of the skin develop?
Endoderm
Ectoderm
Mesoderm
Both endoderm and ectoderm.
What factors contribute to the susceptibility of aging skin to infection?
Decrease in Langerhan’s cell number
Decrease in macrophage number
Decrease in size of sebaceous glands resulting in dry broken skin.
All of these contribute
Which of the following is the most direct way that the skin contributes to the function of the muscular system?
It helps with the synthesis of vitamin.
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