Lab 5 Flashcards
I would suggest reviewing the Ch 5 deck as well for the quiz on Monday 6/24
What are the four main categories of tissues?
- Epithelial
- Connective
- Muscle
- Nervous
Why does the trachea need to be rigid?
So that the airway stays open and we can breathe
Why doesn’t the espophagus need to be permanently open?
It only needs to open to pass food. Otherwise, it needs to stay closed so air continues to trachea.
The trachea is ________ to the esphagus.
Anterior
The esphagus is _______ to the trachea.
Posterior
ID: 1
Esophagus
ID: 2
Trachea
ID: 1
Lumina Propria
ID: 2
Pseudostratified ciliated columnar epithelial cells
ID: 3
Trachea Glandular tissue
(Submucosa)
ID: 4
Hyaline cartilage
ID: 5
Perichondrium
ID: 6
Adventitia
ID: 7
Adipose tissue
The free surfaces of an organ are always lined with…
epithelia cells
The lining of tracheal lumen is made up of…
pseudostratified ciliated columnar epithelial cells
Hyaline cartilage is a _______ tissue.
Connective
Cartilage cells are called…
chondrocytes
The outer layer of cartilage is called …
the perichondrium
Adipose is a type of _______ tissue.
connective
Adipose tissue is also known as…
fat tissue
Adipose cells are called…
adipocytes
True or False
Adipocytes have no free surface.
TRUE
What is the signature “sign” that you are looking at an adipocyte?
The nucleus will be pushed to one side.
What is the lumen of the trachea?
The open airway of the trachea
True or False
The adventita is the layer closest to the lumen of the trachea.
FALSE
It is the layer farthest from
Adventitia is made of…
Loose connective tissue
Loose connective tissue contains sparse _______.
fibroblasts.
The lamina propria is what kind of tissue?
Loose connective
Where is the lamina propria located?
Just under the epithelial layer
Chondrocytes are located within…
Lacunae
(cavities in the cartilage)
A section a long the length of a specimen is called a
longitudinal section
A section across a specimen (perpendicular to its length) is called a…
cross section
A section of a specimen that is both along the length and across it is called…
an olbique section
What is the difference between lacuna and lacunae?
Lacuna is singular, Lacunae is plural.
Lacuna exist around each…
chondrocyte
ID: 1
Ciliated pseudostratified columnar epithelial layer
ID: 2
Lamina propria
ID: 3
Glandular tissue made of simple cuboidal cells
ID: 4
Lumen of gland
What are the two large circular structures?
blood vessels
ID: 1
Squamous cell
ID: 2
Red blood cell
This is a slide of Hyaline cartilage.
ID: 1
Lacuna
This is a slide of Hyaline cartilage.
ID: 2
Chondrocyte cell
This is a slide of Hyaline cartilage.
ID: 3
Nucleus of chondrocyte
What type of tissue is this?
Adipose
ID: 1
Blood vessel
ID: 2
Nucleai of fat cells pushed to the side
ID: 3
Epithelial squamous cells
This is a slide of skin.
ID: 1
Keratinized stratified squamous tissue
This is a slide of skin.
ID: 2
Dense irregular connective tissue
What does “stratified” mean?
There are many layers of cells. Some will touch basement layers, others won’t.
Why do we need stratified keratinized squamous cells for the epidermis?
Water-proofing and protection from abrasion
Why are there no nucleai in the upper layers of skin?
Because they are dead.
This is a slide of skin.
ID: 1
Papillae
What organ contains moist stratified squamous epithelium?
Tongue
True or False
The tongue has keratinized stratisfied squamous epithelium.
FALSE
This slide shows tissues that are ripped and folded. These irregularities are called…
artifacts
If you begin focusing on a sliede with the scanning lens (4x), what is your total magnification?
40x
(4x objective * 10x occular)
What objective lense would you select to have a total of 100x?
10x
(10x occular * 10x objective)
Tendons and ligaments are made of what type of connective tissue?
Dense Regular
In puberty, vaginal tissue changes from a simple cuboidal to moist stratified squamous epithelium.
Why?
- To protect from acids of menstruation
- To protect against damage from the rigors of sex
What is the difference between dense regular and irregular tissue?
Regular: all tissues are paralel and run in the same direction
Irregular: tissues run in chaotic directions
What function do dermal papillae serve?
To provide O2 and nutrients to the layers above.
Burns to the epidermis are much less serious than burns to the dermis.
Why?
- Epidermis burns are superficial (shallow) and will not result in lasting damage or scarring.
- Dermal burns are much deeper and contain blood vessels. Burns here will result in lasting damage, scarring and possible infection due to exposure of sensitive tissues.
What characteristics are shared by all epithelial tissues?
- Comprised an uninterrupted layer of cells
- Cover nearly all external and internal body surfaces
What are the differences between simple, stratified and pseudostratified epithelia?
Simple = one layer of cells where all cells touch basal and apical sides.
Stratified = multiple layers of cells where some will touch basement membrane and others won’t.
Pseudostratified = one layer of cells where all cells touch the basement membrane, but only some reach the apical surface. Looks stratified, but isn’t.
Name cells found in adipose tissue
Adipocytes, fibroblasts
Name cells found in dense regular connective tissue.
- collagen fibers
- fibroblasts
What types of cells are found in cartilage?
Chondrocytes
What is the epithelial layer made of in this slide?
Cuboidal epithelial cells
What does this slide show?
Cilliated pseudostratified columnar epithelial cells
What are the lighter colored oval shaped objects in this slide?
Goblet cells
What is this tissue?
cartilage
