Chapter 1:An Introduction to the Human Body

Question 1

Define Anatomy

Answer 1

The study of the Structure of bod parts and their relationship to one another

Question 2

Define Physioology

Answer 2

Study of how body parts work or function

Question 3

What are the 6 Levels or Structural Organizaion?

Answer 3

1. Chemical: atoms to molecules
2. Cellular Level: molecules to cells
3. Tissue Level: groups of similar cells with a common function
4. Organ Level: Structure that performs a specific body function, composed of at least 2 tissue types
5. System Level: several organs form a system with a common function
6. Organisms Level: sum total of all structural levels that together promote life of the whole organism.

Question 4

What are the 4 basic tissue types?

Answer 4

Epithelial, connective, muscle, nervous

Question 5

What factors are needed to maintain life?

Answer 5

Nutrients (food)
Oxygen 
Water
Normal body temperature
Normal atmospheric pressure

Question 6

Define Homeostasis

Answer 6

Condition in which the body maintain a relatively stable internal environment within relativelyy narrow physiological limits

Question 7

What systems primary maintain homeostasis in the body?

Answer 7

Nervous system and the endocrine system

Question 8

List and explain the 3 basic components of the feedback system.

Answer 8

1. Receptor: sensor detects change (afforent pathway)
2. Control Center: analyzes the Inuit and determines proper response
3. Effector: produces a response to correct the change. (Efferent pathway)

Question 9

What does a negative feedback system do to a controlled condition?

Answer 9

Shuts of the original stimulus or reduces its intensity (reverses change)

Question 10

What does a positive feedback system do to a controlled condition?

Answer 10

Intensifies the original stimulus (blood clotting)

Question 11

Describe anatomical posistions.

Answer 11

Standing erect, facing forward, palms forward with arms at the sides.

Question 12

Define a body cavity.

Answer 12

Space that is closed to the outside

Question 13

Which body cavity is the only one to be exposed to the outside of the body?

Answer 13

Digestive System.

Question 14

What tissue types make up serous membranes?

Answer 14

Epithelial and connective

Question 15

Which serous membrane lines the walls of the body cavities ?

Answer 15

Parietal

Question 16

A ______ serous membranes covers the organs of the body.

Answer 16

Visceral