Exam 1 - Chapter 1

Question 0

What are the levels of structural organization?

Answer 0

Chemical, cell, tissue, organ, organ system, organism

Question 1

What is anatomy and physiology?

Answer 1

Anatomy is the study of structure whereas physiology is the study of how body structures function

Question 2

What are the six life processes?

Answer 2

(1) metabolism - sum of all chemical reactions (2) responsiveness - acting toward external forces (3) movement - internal and external actions (4) growth - enlarge and repair body (5) differentiation - specializing in a certain function (6) reproduction - continuing species

Question 3

What is homeostasis?

Answer 3

Condition of equilibrium, or balance, in the body’s internal environment

Question 4

What are the components of a feedback system?

Answer 4

(1) receptor - senses and detects body events, sends messages (2) control center - CNS receives messages to brain and spinal cord (3) effector - muscles and glands make the change (4) oxytocin - continues positive feedback

Question 5

What is negative and positive feedback?

Answer 5

Negative feedback reverses the problem in the body (sweating to cool body temperature) Positive feedback increases the problem in the body (child birth)

Question 6

What are injuries, disorders, and diseases?

Answer 6

(1) injury - acute, quick incident (2) disorder - temporary imbalance in homeostasis (3) disease - permanent imbalance in homeostasis