Histology Flashcards
What does the Axon do?
carry impulse away from the cell body
What is the function of Dendrites?
Carry electrical charges towards the cell body
What cells are found in the lacunae?
Osteocytes
What is found between these cells that junctions a connection to form the tissues?
Intercalated discs
What does the Epithelial tissue make up?
the lining of the body
How many layers does simple squamous epithelium have?
a single layer of flattened cells
How many layers does Simple cuboidal epithelium have?
a single layer of cube-like cells
How many layers does simple columnar epithelium?
a single layer of long columnar cells
How is the Pseudostratified ciliated columnar epithelium different?
it is a single layer of cells but it looks stratified on first appearance
What is the basement membrane?
the noncellular layer that attaches the epithelium to lower layers
How is Stratified squamous different?
it is many layers of flattened cells
How is Keratinized epithelium different from non-keratinized epithelium?
it is found on the skin and is toughened by the protein keratin
How is Non-keratinized epithelium different from Keratinized epithelium?
it is found in the oral cavity and vagina; it is a mucous membrane
Where is loose connective tissue found?
wrapping around organs or under the epidermis
Where is Transitional epithelium located?
In the lining of parts of the urinary tract including the bladder
What does else does connective tissues have?
fibers and a large amount of matrix
What is loose connective tissue composed of?
Collagenous, elastic, and reticular fibers
What type of cells does Dense regular connective tissue contain?
fiberocytes and a small amount of matrix
What are Dense regular connective tissue composed of?
a regular arrangement of collagenous fibers
What does Dense regular connective tissue make up?
tendons and ligaments
What does Dense irregular connective tissue do?
provide structural strength
What does Elastic connective tissue contain?
elastic fibers
Where is elastic connective tissue found?
walls of large arteries
What does Reticular connective tissue consist of?
reticular fibers
What does Adipose tissue consist of?
Adipocytes
What is the most common kind of cartilage?
Hyaline cartilage
What does Hyaline cartilage contain?
semisolid matrix, collagenous fibers, and chondrocytes (cartilage cells)
How is Fibrocartilage different from Hyaline cartilage?
has the same components but there are more collagenous fibers
Where is Fibrocartilage found?
the joints between the bones of the thigh and leg
What does Elastic cartilage consist of?
a matrix, chondrocytes, elastic fibers
What does bone consist of?
osteocytes (the cells) and collagenous fibers
What does Blood consist of?
plasma (matrix), erythrocytes (red blood cells), and leukocytes (white blood cells)
What are Platelets?
small flat disks in the blood that aid in clotting
What is Muscular tissue composed of?
specialized cells involved in contraction
What does the Skeletal muscle make up?
body muscles
In Skeletal muscles, what does the fusion of individual cells produce?
longer, mature cells that are multinucleate
Is the skeletal muscle striated? Yes or No?
yes
What is the skeletal muscle also called?
voluntary muscle
Is the cardiac muscle striated? Yes or No?
yes
Where is the cardiac muscle found?
in the heart
The cardiac muscle is…
involuntary
How many nucleus does the Cardiac muscle have?
1
What does the intercalated disc do?
allow communication between cells for conduction of impulses (cardiac cycle)
Is smooth muscle striated? yes or no?
no
Smooth muscle is..
involuntary
Where is the nucleus located in smooth muscle?
the center of the cell
Where is smooth muscle found?
in glands and other areas not under conscious control
What does the Nervous tissue consist of?
the neuron and associated glial cells
What are the extensions in the Neurons called?
dendrites, soma, and an axon
