BIOS 1300 Exam 2 Questions with Correct Answers Latest Update 2025/2026
Where is thick skin present - Answers Palms of hands, soles of feet
What layer of the epidermis is not present in Thin skin but is present in the thick skin - Answers
Stratum lucidum
What does the thin skin have that the thick skin doesn't? - Answers Sebaceous (oil) glands &
hair follicles
What do cell junctions do - Answers make a connection between 2 cells
What is histology - Answers the study of tissues
3 types of cell junctions - Answers Tight junctions, Gap junction, and desmosomes
T/F: Endocrine glands have ducts - Answers False
3 types of secretions - Answers Merocrine, Apocrine, & Halocrine
Where do endocrine glands secrete hormones - Answers directly into blood
Examples of a merocrine glands - Answers Tear gland, pancreas, and gastric gland
What do Hemidesmosomes do - Answers anchor epithelial cells to basement membrane
Where do subcutaneous injections occur - Answers hypodermis/subcutaneous region
why is the needle inserted in the hypodermic/subcutaneous region in a subcutaneous injection?
- Answers - The hypodermis contains many blood vessels
- Injections in the hypodermis will readily enter the bloodstream
Which layer of the epidermis contains melanocytes? - Answers Stratum Basale
A cluster of raised blood vessels in the dermis of skin can result in - Answers Capillary
Hemangioma
Function of the sebaceous gland - Answers secretes an oily substance onto the skin for
lubrication and protection against bacteria
T/F: Sebaceous glands use exocytosis as a method of secretion - Answers False
Functions of the skin - Answers Barrier, Vitamin D synthesis, Excretion, Sensation,
Thermoregulation, nonverbal communication, and blood reservoir
Is the hypodermis part of the skin - Answers No
What layer of the epidermis is composed of dead keratinocytes - Answers Stratum Corneum
, Where does cell division occur - Answers Stratum Spinosum
Where are stem cells present in the epidermis - Answers Stratum Basale
What are the 2 layers of the dermis - Answers Papillary layer & Reticular layer
What is the dermis mostly composed of - Answers Collagen & elastic fibers
Function of the dermal papillae & epidermal ridges - Answers Produce friction ridges of
fingerprints
composed of areolar tissue & rich in small blood vessels (also contains Meissner's corpuscle) -
Answers Papillary layer of dermis
Meissner's corpuscle is responsible for what - Answers Sensory receptor for light touch (such
as a mosquito bite)
What tissue is the Reticular layer of the dermis composed of - Answers dense irregular C.T
Where is the Pacinian corpuscle present - Answers Reticular layer of the dermis
What is the Pacinian corpuscle - Answers A pressure receptor detector (deep)
Where else can the Pacinian corpuscle be found other than the dermis - Answers Hypodermis
Function of hypodermis - Answers -pads body and binds skin to underlying tissue
-subcutaneous fat
What is the biggest difference in the stratum corneum when comparing thick and thin skin -
Answers Size of corneum is much bigger in thick skin
Melanin - Answers produced by melanocytes
Hemoglobin - Answers pigment in red blood cells in dermal capillaries
Carotene - Answers yellow pigment
What are the 3 types of pigments that influence your skin - Answers Melanin, Hemoglobin, &
Carotene
What pigment is responsible for the reason your veins look blue under your skin - Answers
Hemoglobin
What is the most important factor in determining skin color - Answers Melanin
T/F: People with different skin colors have the same number of melanocytes - Answers True
Erythema - Answers redness due to increased blood flow to skin
Where is thick skin present - Answers Palms of hands, soles of feet
What layer of the epidermis is not present in Thin skin but is present in the thick skin - Answers
Stratum lucidum
What does the thin skin have that the thick skin doesn't? - Answers Sebaceous (oil) glands &
hair follicles
What do cell junctions do - Answers make a connection between 2 cells
What is histology - Answers the study of tissues
3 types of cell junctions - Answers Tight junctions, Gap junction, and desmosomes
T/F: Endocrine glands have ducts - Answers False
3 types of secretions - Answers Merocrine, Apocrine, & Halocrine
Where do endocrine glands secrete hormones - Answers directly into blood
Examples of a merocrine glands - Answers Tear gland, pancreas, and gastric gland
What do Hemidesmosomes do - Answers anchor epithelial cells to basement membrane
Where do subcutaneous injections occur - Answers hypodermis/subcutaneous region
why is the needle inserted in the hypodermic/subcutaneous region in a subcutaneous injection?
- Answers - The hypodermis contains many blood vessels
- Injections in the hypodermis will readily enter the bloodstream
Which layer of the epidermis contains melanocytes? - Answers Stratum Basale
A cluster of raised blood vessels in the dermis of skin can result in - Answers Capillary
Hemangioma
Function of the sebaceous gland - Answers secretes an oily substance onto the skin for
lubrication and protection against bacteria
T/F: Sebaceous glands use exocytosis as a method of secretion - Answers False
Functions of the skin - Answers Barrier, Vitamin D synthesis, Excretion, Sensation,
Thermoregulation, nonverbal communication, and blood reservoir
Is the hypodermis part of the skin - Answers No
What layer of the epidermis is composed of dead keratinocytes - Answers Stratum Corneum
, Where does cell division occur - Answers Stratum Spinosum
Where are stem cells present in the epidermis - Answers Stratum Basale
What are the 2 layers of the dermis - Answers Papillary layer & Reticular layer
What is the dermis mostly composed of - Answers Collagen & elastic fibers
Function of the dermal papillae & epidermal ridges - Answers Produce friction ridges of
fingerprints
composed of areolar tissue & rich in small blood vessels (also contains Meissner's corpuscle) -
Answers Papillary layer of dermis
Meissner's corpuscle is responsible for what - Answers Sensory receptor for light touch (such
as a mosquito bite)
What tissue is the Reticular layer of the dermis composed of - Answers dense irregular C.T
Where is the Pacinian corpuscle present - Answers Reticular layer of the dermis
What is the Pacinian corpuscle - Answers A pressure receptor detector (deep)
Where else can the Pacinian corpuscle be found other than the dermis - Answers Hypodermis
Function of hypodermis - Answers -pads body and binds skin to underlying tissue
-subcutaneous fat
What is the biggest difference in the stratum corneum when comparing thick and thin skin -
Answers Size of corneum is much bigger in thick skin
Melanin - Answers produced by melanocytes
Hemoglobin - Answers pigment in red blood cells in dermal capillaries
Carotene - Answers yellow pigment
What are the 3 types of pigments that influence your skin - Answers Melanin, Hemoglobin, &
Carotene
What pigment is responsible for the reason your veins look blue under your skin - Answers
Hemoglobin
What is the most important factor in determining skin color - Answers Melanin
T/F: People with different skin colors have the same number of melanocytes - Answers True
Erythema - Answers redness due to increased blood flow to skin
