Lecture 1 Flashcards
What are the main points from the human tissue act 2008?
Bodies come from people who donate them (bequests) after informed consent. The wishes of deceased people can be overridden by objections of surviving spouse or relative, there is no reference to how long we can keep the body parts and unnecessary mutilation must be avoided (respect must be shown).
What are the levels of organisation in the human body?
Body
What are tissues composed of? How do they tend to differ and why is this different?
Speciallised cells embedded within an extracellular matrix. They differ in the amount and kind of materials which make up this extracellular matrix (e.g water, proteins, proteoglycans), the different structures tend to link with different functions.
What tissues are part of the locomotor system?
Bone, cartilage, muscle, nerves, tendons, ligaments and blood vessels.
What are the four basic tissue types?
Epithelial, connective, muscle and nervous.
What is the structure and function of epithelial tissue? Give three examples.
Consists of layers/sheets of cells with very little matrix. Functions to cover/protect body surfaces and lines cavities. Examples of this are the skin, lining of tracts and glands.
What is the structure and function of connective tissue? Give four examples.
Consists of heavily spread out cells embedded within lots of extracellular matrix, acts to support structures and transport substances, examples of this are bones, cartilage/tendons, fat and blood.
What is the structure and function of muscle tissue? Give three examples.
Long fibre like ells which are capable of pulling loads, produces movement and heat examples of this are skeletal, smooth and cardiac muscle.
What is the structure and function of nervous tissue? Give three examples.
Highly cellular with many types which can conduct or support. Allows for communication and coordination between body parts and examples are nerves, sensory organs and the brain and spinal cord.
