Unit 1: Intro to Anatomy

Question 1

What is anatomy?

Answer 1

The study of internal and external body structures (relationships btw. structures = subdivisions)

Question 2

What is level 1 of organization?

Answer 2

The chemical level (basic level) = atoms (like H+ and O) can be combined to make more complex structures (like H2O)

Question 3

What is level 2 of organization?

Answer 3

The cellular level = molecules form organelles (little organs) which form cells (about 75 trillion cells in human body)

Question 4

What is a cell?

Answer 4

A cell is a basic unit of structure and function (200+ types in body)

Question 5

What is level 3 of organization?

Answer 5

The tissue level = combination of cells (but still contain chem.s), aka a group of structurally similar cells w/ a common function

Question 6

What are the four major tissue types?

Answer 6

i. Epithelial
ii. Connective Tissue (CT)
iii. Muscle
iv. Nervous

Question 7

What is level four of organization?

Answer 7

The organ level = 2 OR MORE tissues working together for a common function (! more than 1 tissue automatically means you are at the organ level)

Question 8

What is level five of organization?

Answer 8

The organ system level = several related organs that work together to accomplish a common purpose.

Question 9

What is level six of organization?

Answer 9

The organism = all systems function together to maintain like (aka you :))