Lecture 1 - organisation of the human body Flashcards
how many levels of structural organisation are there in the body?
6 types
What are the 6 types of structural organisation?
chemical level, cellular level, tissue level, organ level, system level, organismal level
describe chemical level organisation
the building blocks of the body
give an example of chemical level organisation
atoms and molecules
describe the cellular level organisation
basic structural and functional units of the body (200 types)
give an example of cellular level organisation
smooth muscle cells - cardiac muscle cells
describe tissue level organisation
tissues are groups of cells that work together to perform a particular function - there are 4 types, epithelial, connective, muscle and nerve
How many types of tissues are there and what are they?
4, epithelial, connective, muscle and nerve tissue
describe organ level of organisation
organs are structures with specific functions composed of 2 or more types of tissue
Give an example of organ level organisation
the stomach, the heart
describe system-level organisation
a system consists of related organs with a common function
give an example of system-level organisation
the digestive system, the cardiovascular system
describe organismal-level organisation
all parts of the body function together to constitute a living organism
give an example of organismal-level organisation
the individual
what are the 11 body systems
muscular
urinary
respiratory
digestive
endocrine
reproductive
skeletal
lymphatic +immune
integumentary
nervous
cardiovascular
what is the primary function of the integumentary system?
protection
what is the primary function of the muscular system?
movement
what is the primary function of the skeletal system?
support and protection, bone marrow produces red blood cells
what system does this primary function relate to: produces nerve impulses to regulate body activities
nervous system
what is the primary function of the endocrine system
releases hormones to regulate body activities
what is the primary function of the immune and lymphatic system?
defence, transport lipids, proteins and lymphoid cells
what is the primary function of the cardiovascular system?
transport O2 and CO2 between blood and air
what is the primary function of the urinary system
urine production, storage, elimination, regulation of blood volume, assist in production of blood cells
what is the primary function of the digestive system?
digestion of food, absorption of nutrients and the elimination of waste