Tissues Flashcards
What are stem cells? How’s there DNA work?
Cells who haven’t decided what they want to be. There DNA is shut off.
What cells can give rise to many cell types?
Stem cells
What does specialization mean?
Start to change
What’s an advantage of multicellular?
It can specialize and have special functions
What is homeostasis
How it keeps balance, its brought by cells, tissues, organs, and organ systems working together
How do organ systems work?
They interacts to perform a common task
What does the circulatory system include?
Heart, arteries, other vessels
What is an epithelial tissue?
Lines all of the body’s cavies, ducts, tubes, and surfaces.
What are the 4 types of tissues?
Epithelial tissue
Connective tissue
Muscle tissue
Nervous tissue
How are the tissues organized, ex?
Cells —> Tissue —> organs —> organ system
What are the 3 types of epithelial tissue?
Squamous - flat cells
Cuboidal - Cube shaped
Columnar - Pillar shaped
What is an endocrine? Ex?
Goes into blood, glucagon, insulin
What surface faces body fluid?
A free surface faces a body fluid
What is an exocrine? , ex
Releases to surface into body tissue. Goes through ducts into the small intestine. Pancreatic lipase.
What is the most abundant tissue in the body?
Connective tissue
What is the matrix
It’s where the cells live
Where do secretory organs derive from?
Epithelium, made completely of it
What is the matrix made of
Sugar + protein + fluid + other
What is the reason for the matrix?
Support
Communication
Delivery of nutrients
Loose connective tissue
Framework for epithelium, lets organs expand
Dense irregular connective tissue
In skin when, form capsule around organs
Regular dense connective tissue
Muscle to bone when tendons, ligaments when bone to bone. Has elastic fibres
