Ch. 1 - Systems & Structures

Question 1

What is the main difference between negative and positive feedback systems?

Answer 1

The response in negative feedback systems reverses the initial change of a controlled condition, whereas that in positive feedback systems enhances the initial change of a controlled condition.

Question 2

Which level of structural organization is composed of two or more different types of tissues that work together to perform a specific function?

Answer 2

Organ Level

Question 3

Which of the following are functions of the urinary system?

Answer 3

1. Stores urine
2. Eliminates solid’s wastes
3. Detects changes in body’s internal environment
4. Helps regulate acid-base balance of the body fluid
5. Helps regulate blood volume

Question 4

Which of the following are functions of the skeletal system

Answer 4

1. Supports/Protects the Body
2. Stores Lipids
3. Maintains Posture
4. Houses cells that produce blood cells

Question 5

What are the 6 main functions of the integumentary system?

Answer 5

1. Protects the body
2. Helps regulate body temperature
3. Eliminate some wastes
4. Helps make vitamin D
5. Detect sensations (touch, pain, hot or cold)
6. Stores fat & provides insulation

Question 6

What are the 5 main functions of the skeletal system?

Answer 6

1. Supports and protects body
2. Provide surface area for muscle attachments
3. Aids body movements
4. Houses cells that produce blood cells
5. Stores minerals and lipids

Question 7

What are the three main functions of the muscular system?

Answer 7

1. Participates in body movements
2. Maintains posture
3. Produces heat

Question 8

The radius is ____ to the humerus

Answer 8

Distal

Question 9

What are the 2 main functions of the nervous system?

Answer 9

1. Generates action potentials to regulate body activities
2. Detects changes in the bodies internal and external environments, interpret changes, and responds by causing muscular or glandular secretions.