Unit 1

Question 1

Anatomy

Answer 1

Study of structures of the body - what they are, where they’re located, associated structures.

Question 2

Physiology

Answer 2

Function - how they work alone and with other systems

Question 3

Specialties of anatomy

Answer 3

Macroscopic - examines large, visible structures.

Microscopic - cells, molecules, cytology (cells and their structure)

Question 4

Specialties of physiology

Answer 4

Cell - processes within or between cells
System - function of organs
Pathological - effects of disease

Question 5

Levels of organization from lowest to highest

Answer 5

Higgs boson particles - sub molecular
Atoms - smallest chemical unit (O or K)
Molecules - group of atoms (O2 or H2O)
Cells - group of organelles (animal/heart muscle)
Tissue - group of similar cells (epithelial/muscle)
Organs - different tissues working together (heart)
Organ systems - group of organs (skeletal)
Organism - individual

Question 6

Homeostasis

Answer 6

The maintenance of a relatively constant internal environment that is vital to the continuation of life.
All body systems must work together to maintain it.
Lack of = illness or death.

Question 7

Mechanisms of Regulation - intrinsic

Answer 7

Automatic responses - cells, tissues, organs, or organ systems adjust in response to a change.
Drop in oxygen = dilation of blood vessels.

Question 8

Mechanisms of regulation - extrinsic

Answer 8

Responses controlled by nervous or endocrine systems which adjust activities in other systems through nerve impulses or hormones.
In stressful situations, the nervous system signals the heart to beat faster.