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Lecture 1 Anatomy
general concepts covered BSCI201 lecture 1
22
Biology
Undergraduate 2
02/23/2014

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Term
Anatomy
Definition
the study of the parts of the body and how they relate to each other
Term
physiology
Definition
the study of the function of the body parts
Term
6 levels of structural organization
Definition
1. chemical
2. cellular
3. tissue
4. organ
5. organ system
6. organism
Term
chemical level
Definition
atoms combine to form molecules
Term
cellular level
Definition
cells are made up of molecules
Term
tissue level
Definition
tissues consist of similar types of cells
Term
organ level
Definition
organs are made up of different types of tissues
Term
organ system
Definition
consist of different organs that work closely together
Term
organism
Definition
human organism is made of 11 organ systems
Term
homeostasis
Definition
All 10 organ systems work in unison to maintain HOMEOSTASIS (Reproductive system starts at puberty)

maintenance of a relatively stable internal conditions even though the external environment is changing
Term
what causes disease?
Definition
homeostatic imbalance
Term
compartmentalization
Definition
examines how each organ is surrounded by its own membranes
Term
3 advantages of compartmentalization
Definition
1. isolation, prevents interference from surrounding organs in same cavity

2. prevents spread of infection from organ to organ in same body cavity

3. membranes hold organs in correct anatomical positions
Term
serosa or serous membrane
Definition
double-layered membrane lining the walls of the ventral body cavity
Term
2 functions of serous (serosa) membrane
Definition
1. allows visceral organs to slide over each other

2. prevent infection from spreading
Term
perotoneum
Definition
serosa lining the abdominal cavity
Term
pleura
Definition
serosa lining the lungs
Term
pericardium
Definition
serosa lining the heart
Term
parietal serosa
Definition
part of the serrous (serosa) membrane lining the ventral cavity walls
Term
visceral serosa
Definition
covers the surface of the organs within the cavity
Term
intraperitoneal organs
Definition
organs surrounded by the peritoneum
Term
retroperitoneal organs
Definition
located outside of the peritoneum
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