1 a - Homeostasis & Chemistry

Question 1

What is the study of body structure?

Answer 1

Anatomy

Question 2

What is the study of body function?

Answer 2

Physiology

Question 3

Name the levels of complexity lowest to most complex

Answer 3

atoms
molecules
organelles
cells
tissues
organs
organ systems
organisms

Question 4

What is the smallest form of chemical matter?

Answer 4

Atom

Question 5

What is a molecule

Answer 5

Two or more atoms bonded together.

Question 6

What is the smallest component of life?

Answer 6

Cell

Question 7

What is a group of related cells that perform a similar role

Answer 7

Tissue

Question 8

Which tissue forms linings?

Answer 8

Epithelial

Question 9

Which type of tissue secretes the extracellular matrix?

Answer 9

Connective

Question 10

Name the tissue that is electrically excitable and conductive for communication purposes/

Answer 10

Nervous

Question 11

What is contractile tissue?

Answer 11

Muscle

Question 12

What are multiple tissues that combine to perform an overall function called?

Answer 12

Organ

Question 13

What is an organ system?

Answer 13

Multiple organs performing an overall role.

Question 14

What consists of multiple organ systems working together?

Answer 14

Organism

Question 15

What is a measurable property such as blood pressure?

Answer 15

Pysiological Parameter

Question 16

Responses at the cellular level are called:

Answer 16

Cellular Physiology

Question 17

Keeping body paramters constant is referred to as what?

Answer 17

Homeostasis

Question 18

What do sensory receptors detect?

Answer 18

Environmental changes such as temperature (it’s cold!)

Question 19

What are receptor responses?

Answer 19

It is the reponse to the information gathered from the sensory detector (forming goosebumps)

Question 20

What is the purpose of negative feedback?

Answer 20

To maintain homeostasis

Question 21

How does negative feedback work?

Answer 21

By returning a parameter value to its set point.

Question 22

What are the components of negative feedback?

Answer 22

Receptor, Control Center and Effector

Question 23

What does the control center do?

Answer 23

Receives receptor signal and sends singal to Effector

Question 24

What does the effector do?

Answer 24

Directly causes the change in variable. It is the response.

Question 25

What does the receptor do?

Answer 25

Detects changes and singnals the control center.

Question 26

Can set points change?

Answer 26

yes (with exercise for example)

Question 27

What is the average or mean value for a parameter?

Answer 27

Set point

Question 28

What is positive feedback?

Answer 28

When the value continues to move away from the set point -- beyond the limits for the normal range.

Question 29

What is childbirth an example of?

Answer 29

Positive feedback

Question 30

Which feedback is more common in disease?

Answer 30

Abnormal positive feedback

Question 31

Positive feedback is sometimes illustrated as ______ effect

Answer 31

Zombie

Question 32

What is the difference between a mean value and a range?

Answer 32

A range includes all values that are considered normal for a parameter. The mean is the average value for that parameter.