Integumentary System
Skin Structure, Function,
and Disorders
2026
Question and Answers
Expert Verified
(With A+ Grades Guarantee)
,What is the primary function of the It serves as the outermost protective shield of the
epidermis? body.
What type of tissue primarily makes Epithelial tissue.
up the epidermis?
What is the dermis primarily Dense connective tissue.
composed of?
What is the subcutaneous tissue Hypodermis or superficial fascia.
also known as?
What is the primary function of It anchors skin to underlying structures and
subcutaneous tissue? provides shock absorption and insulation.
What are the four cell types found Keratinocytes, melanocytes, dendritic cells, and
in the epidermis? tactile epithelial cells.
What is the role of keratinocytes? They produce fibrous keratin, which gives skin its
protective properties.
What pigment do melanocytes Melanin.
produce?
What is the function of dendritic They act as macrophages that ingest foreign
cells in the epidermis? substances and activate the immune system.
,What are the five layers of the Stratum basale, stratum spinosum, stratum
epidermis? granulosum, stratum lucidum (only in thick skin),
and stratum corneum.
What is the stratum basale known It is the deepest layer of the epidermis where
for? active mitosis occurs.
What happens to cells as they move They die as they move towards the surface.
from the stratum basale to the
surface?
What characterizes the stratum It contains several layers of keratinocytes that
spinosum? appear spiky due to intermediate filaments.
What begins in the stratum Keratinization.
granulosum?
What is the function of lamellar They help form a water-resistant barrier to slow
granules in the stratum water loss.
granulosum?
What is unique about the stratum It is only found in thick skin and consists of clear,
lucidum? flat, dead keratinocytes.
What is the stratum corneum 20-30 rows of flat, anucleated, keratinized dead
composed of? cells.
, What is the primary function of the To protect deeper cells, prevent water loss, and
stratum corneum? act as a barrier against assaults.
What types of cells are found in the Fibroblasts, macrophages, mast cells, and white
dermis? blood cells.
What are the two layers of the Papillary dermis and reticular dermis.
dermis?
What is the papillary dermis made Areolar connective tissue with loose fibers.
of?
What are dermal papillae? Fingerlike projections that extend into the
epidermis, containing capillary loops and touch
receptors.
What is the reticular dermis Coarse, dense irregular connective tissue.
composed of?
What are cleavage lines in the Lines caused by collagen fibers running parallel
reticular layer? to the skin surface, important for surgical
incisions.
Skin Structure, Function,
and Disorders
2026
Question and Answers
Expert Verified
(With A+ Grades Guarantee)
,What is the primary function of the It serves as the outermost protective shield of the
epidermis? body.
What type of tissue primarily makes Epithelial tissue.
up the epidermis?
What is the dermis primarily Dense connective tissue.
composed of?
What is the subcutaneous tissue Hypodermis or superficial fascia.
also known as?
What is the primary function of It anchors skin to underlying structures and
subcutaneous tissue? provides shock absorption and insulation.
What are the four cell types found Keratinocytes, melanocytes, dendritic cells, and
in the epidermis? tactile epithelial cells.
What is the role of keratinocytes? They produce fibrous keratin, which gives skin its
protective properties.
What pigment do melanocytes Melanin.
produce?
What is the function of dendritic They act as macrophages that ingest foreign
cells in the epidermis? substances and activate the immune system.
,What are the five layers of the Stratum basale, stratum spinosum, stratum
epidermis? granulosum, stratum lucidum (only in thick skin),
and stratum corneum.
What is the stratum basale known It is the deepest layer of the epidermis where
for? active mitosis occurs.
What happens to cells as they move They die as they move towards the surface.
from the stratum basale to the
surface?
What characterizes the stratum It contains several layers of keratinocytes that
spinosum? appear spiky due to intermediate filaments.
What begins in the stratum Keratinization.
granulosum?
What is the function of lamellar They help form a water-resistant barrier to slow
granules in the stratum water loss.
granulosum?
What is unique about the stratum It is only found in thick skin and consists of clear,
lucidum? flat, dead keratinocytes.
What is the stratum corneum 20-30 rows of flat, anucleated, keratinized dead
composed of? cells.
, What is the primary function of the To protect deeper cells, prevent water loss, and
stratum corneum? act as a barrier against assaults.
What types of cells are found in the Fibroblasts, macrophages, mast cells, and white
dermis? blood cells.
What are the two layers of the Papillary dermis and reticular dermis.
dermis?
What is the papillary dermis made Areolar connective tissue with loose fibers.
of?
What are dermal papillae? Fingerlike projections that extend into the
epidermis, containing capillary loops and touch
receptors.
What is the reticular dermis Coarse, dense irregular connective tissue.
composed of?
What are cleavage lines in the Lines caused by collagen fibers running parallel
reticular layer? to the skin surface, important for surgical
incisions.
