Topic 1: intro to anatomy

Question 1

what is anatomy?

Answer 1

-the study of internal and external body structures and the relationships between them
- ex: bone (internal) muscle (external)

Question 2

what are the subdivisions for anatomy?

Answer 2

-gross anatomy
-microanatomy

Question 3

what is considered gross anatomy?

Answer 3

-it is visible to the eye
-larger structures
-ex: bones

Question 4

what is considered microanatomy?

Answer 4

-need a microscope to be seen
-smaller structures
-ex: cells and tissues

Question 5

what is cytology?

Answer 5

the study of cells and their internal structures

Question 6

what is histology?

Answer 6

-the study of tissues (groups of cells)

Question 7

what are the levels of organization (simple to complex)

Answer 7

-chemical
-cellular
-tissue
-organ
-organ system
-organism

Question 8

chemical level

Answer 8

-atoms, ex: hydrogen and oxygen
-molecules, ex: water

Question 9

cellular level

Answer 9

-molecules form organelles which form cells
-all cells contain chemicals, but the function of each cell differs
-ex: rbc, neurons, and muscle cells

Question 10

tissue level

Answer 10

-a group of similar cells with a common function
-4 major types
-as soon as there is more than 1 tissue, it is at the organ level

Question 11

what are the 4 major tissue types?

Answer 11

-nervous
-muscle
-epithelial
-connective

Question 12

what type of tissue is the first layer of defence in most systems?

Answer 12

-epithelial
-lines GI tract, hollow organs, and the skin surface

Question 13

organ level

Answer 13

-2 or more different tissues
-working together for a common function
-ex: stomach (made up of all 4 tissues, function is digestion)

Question 14

organ system level

Answer 14

-several organs that work together to accomplish a common goal/purpose
-ex: respiratory system (lungs, trachea, etc. function is respiration)

Question 15

organism level

Answer 15

-all systems function together to maintain life
-ex: humans