Labs 5 and 6 Flashcards
Be able to identify the following issues, know locations and functions (Models and microscope slide) Pseudostrafied columnar simple squamous stratified squamous simple cuboidal compact bone adipose tissue hyaline cartilage blood areolar connective tissue dense regular connective tissue Skin model epidermis: including stratum corneum, stratum basale dermis glands (sweat and oil glands) hypodermis
Where is pseudostratified columnar epithelium found?
The lining of the trachea and upper respiratory tract.
What is the function of pseudostratified ciliated columnar epithelium?
Think trachea and upper respiratory tract
Secretes mucus via goblet cells and removal of particles pathogens via cilia.
Where is simple squamous epithelium found?
Alveoli (lungs), blood vessel linings, and capillaries.
What is the function of simple squamous epithelium?
Think lungs
Allows for rapid diffusion and filtration.
Where is stratified squamous epithelium found?
Skin, mouth, esophagus, and vagina.
What is the function of stratified squamous epithelium?
Think epidermis and oral cavity
Protects against abrasion and pathogens.
Where is simple cuboidal epithelium found?
Nephron of the kidney tubules and glands.
What is the function of simple cuboidal epithelium?
Think kidneys
Secretion and absorption.
Where is compact bone found?
Skeleton, including long bones and the skull.
What is the function of compact bone?
Provides support, protection, and storage of minerals like calcium.
Where is adipose tissue found?
Hypodermis and around organs.
What is the function of adipose tissue?
Energy storage, insulation, and cushioning.
Where is hyaline cartilage found?
End of long bones, nose, and trachea.
What is the function of hyaline cartilage?
Provides support and reduces friction at joints.
Where is blood tissue found?
Blood vessels.
What is the function of blood tissue?
Transports oxygen, nutrients, and waste.
Where is areolar connective tissue found?
Beneath epithelial layers and around organs.
What is the function of areolar connective tissue?
Binds tissues, and provides flexibility, and cushioning.
Where is dense regular connective tissue found?
Tendons and ligaments.
What is the function of dense regular connective tissue?
Provides strong attachment and resistance to pulling forces.
Where is the stratum corneum found in the epidermis?
The outermost layer of the epidermis.
What is the function of the stratum corneum?
Provides a protective barrier and prevents water loss.
Where is the stratum basale found in the epidermis?
The innermost layer of the epidermis.
What is the function of the stratum basale?
Responsible for cell division and contains melanocytes for pigment.
Where is the dermis located?
Beneath the epidermis.
What is the function of the dermis?
Contains blood vessels that supply oxygen and nutrients to the epidermis which is avascular (lacks it own blood supply) and thermoregulation.
Where are sweat glands found?
In the dermis.
What is the function of sweat glands?
Regulate body temperature by producing sweat.
What is the function of eccrine sweat glands?
Thermoregulation.
Where are eccrine sweat glands located?
Distrubuted all over the body, especially on the palms, soles, and forehead.
What is the function of apocrine sweat glands?
Becomes active after puberty, releasing a protein rich sweat that contributes to body odor when broken down by bacteria.
Where are apocrine sweat glands located?
Concentrated in areas like the groin, armpits, and around the nipples.
What is the function of oil (sebaceous) glands?
Secrete sebum to lubricate skin and hair.
Where are sebaceous glands found?
Found throughout the body except for the palms of the hands and soles of the feet.
Where is the hypodermis located?
Beneath the dermis.
What is the function of the hypodermis?
Provides insulation, energy storage, and cushioning.
What does adipose tissue look like under the microscope?
White or clear blobs.
What does compact bone look like under the microscope?
It has rings that look like a cut tree trunk or a fossil.
What does areolar tissue look like under the microscope?
Dots and strings.
What does dense regular connective tissue look like under the microscope?
Finished wood on your desk.
What does blood look like under the microscope?
Red dots with some white blots.
What does hyaline cartilage look like under the microscope?
Glass-like appearance and scattered identical tiny dots.
What does simple squamous epithelium look like under the microscope?
They look like sperated cells, fried eggs or a tootsie roll.
What does simple cuboidal epithelium look like under the microscope?
Strings of cubes in rows or circles and have the largest nuclei.
What does pseudostratified ciliated columnar look like under the microscope?
Thinner rows with more nuclei at the bottom layers of disorganized rows and columns.
What does stratified squamous epithelium look like under the microscope (keratinized)?
Two sets of cells having two distinct colors.
What does stratified squamous epthelium (non-keratinized) look like under the microscope?
Top set is lined horizontally and the bottom site is lined vertically.
