Lecture 1 - tissues Flashcards
What are the 3 core principles of the human tissue act (2008)?
- the donation of bodies is voluntarily
- it requires dual signed consent by the donor and an immediate family member (a) the family has the power to withdraw consent at anytime and have the body returned to them
- most bodies are held for around 18 months, but can be kept for longer periods for teaching and research under the act
Name the 4 basic types of tissue.
epithelial, connective, muscle, nervous
What are 4 functions of epithelial tissue.
- providing physical protection
- controlling permeability
- providing sensation
- producing specialised secretions
What are the 3 subtypes of connective tissue?
- connective tissue proper
- fluid connective tissue
- supporting connective tissue
What are the 2 subtypes of connective tissue proper and there own subtypes?
loose; areolar connective tissue, adipose tissue, regular connective tissue
dense; dense regular, dense irregular, elastic
What are the 2 key fibres the make up connective tissue proper and there functions?
collagen; strong, resists tension (thick banded)
elastin; stretchy, recoils back to its shape (thin)
What is a fibroblast?
a cell in connective tissue that produces collagen and fibres
What are the 3 main types of muscle tissue?
skeletal, cardiac, smooth
What is the function and appearance of the skeletal tissue?
function: movement and contraction
appearance: striated (stripy)
Which muscle tissues are under voluntary control and which are not.
voluntary: skeletal
involuntary: cardiac, smooth
Where is cardiac muscle found?
in the heart
Where are smooth muscles found?
walls of hollow organs eg. blood vessels, gut
What are the 2 types of cells that make up nervous tissue?
neurons and glia
What is the long “cable” of the neuron called and what is its function?
axon - carries electron impulses from the neuron to be received by other neurons
What are dendrites?
they receive information from other neurons
