7.1 questions
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3 main transport mechanisms that allow the transfer of substances to maintain homeostasis:
• diffusion • osmosis • filtration
embryonic stem cells have the ability to…
transform themselves into any of the body’s specialized cells and perform different functions
organs combine to form ______
SYSTEMS
Tissues combine to form _____
ORGANS
cells combine to form ______
TISSUES
do nerve cells in the BRAIN reproduce after birth?
no
muscle tissue: what does it do
move and protect
connective tissue: what does it do?
support and connect
3 main types of muscle tissue:
skeletal cardiac visceral (smooth)
nerve tissue: what does it do?
control and communicate
epithelium tissue: what does it do?
secrete and protect
muscle tissue:
produces power and movement by contraction of muscle fibers
what is nerve tissue?
it is made up of special cells called neurons it controls and coordinates body activities by transmitting messages throughout the body
what is hard connective tissue?
the cartilage and bone. cartilage- tough elastic, acts as a shock absorber, and allows flexibility
Tissues are what prevent of water?
60%-99%
what is fibrous connective tissue? what does it do?
it is ligaments and tendons, it helps hold the body structures together
what does soft connective tissue do and include?
it acts as a padding and insulates the body by including adipose or fatty tissue.
what is connective tissue?
supporting fabric of organs and other body parts
2 main classes of connective tissue:
1 Soft 2 Hard
what does epithelial tissue cover?
the surface of the body
what is edema?
swelling of tissue
when does edema occur?
when there is too much tissue fluid
dehydration occurs when?
if there is a insufficient amount of tissue fluid. (not enough)