Homeostasis Quiz

Question 1

Anatomy is?

Answer 1

The study of the structure of an organism and the relationship of its parts.

Question 2

What is another word for the study of anatomy?

Answer 2

Morphology

Question 3

Gross anatomy is?

Answer 3

Structures large enough that one can see with the naked eye

Question 4

Surface anatomy is?

Answer 4

The study of superficial markings

Question 5

Regional anatomy is?

Answer 5

The study of specific areas of the body (eg head, trunk)

Question 6

Systematic anatomy is?

Answer 6

The whole system. Aka the study of the 11 specific organ systems

Question 7

Microscopic anatomy involves

Answer 7

Studying anatomical structures that cannot be seen with the unaided eye

Question 8

The two types of Microscopic anatomy are

Answer 8

1. Cytology - cells

2. Histology- tissues

Question 9

Physiology is?

Answer 9

The study of the functions of living organisms

Question 10

Examples of physiology include

Answer 10

1. Renal- kidney function
2. Neurophysiology- workings of the nervous system
3. Cardiovascular- operation of the heart and blood vessels

Question 11

Key concept: all physiological functions are performed by specific anatomical structures aka?

Answer 11

Structure and function are complementary

Ex. Aorta is the largest artery because it pumps to all the organs

Question 12

The organ systems are

Answer 12

• integumentary
• skeletal
• muscular
• nervous
• endocrine
• digestive
• circulatory
• urinary
• reproductive
• lymphatic
• respiratory

Question 13

Homeostasis is when

Answer 13

All body systems work together to respond to external and internal changes to function within normal range
Ex. Body temp

Question 14

The internal environment of the body is in a _____ state of equilibrium

Answer 14

Dynamic

Question 15

Failure to function within the normal range results in?

Answer 15

Disease/ death

Question 16

Variables produce a what in the body?

Answer 16

Change

Question 17

The stimulus is what

Answer 17

Instigates the change

Question 18

Things instigated by stimuli include:

Answer 18

• temp
• glucose level
• increase heart rate due to exercise/ stress

Question 19

The homeostatic control mechanisms are: ( in order)

Answer 19

1. Stimulus
2. Receptor
3. Input
4. Control center
5. Output
6. Effector
7. Response

Question 20

The stimulus

Answer 20

Produces change

Question 21

The receptor

Answer 21

Detects change

Question 22

The input gets info from the receptor and

Answer 22

Then the info is sent along diff pathways to the control center

Question 23

The control center

Answer 23

Determined the set point at which the variable is maintained

Question 24

The output then

Answer 24

Takes the info and sends it along the efferent pathway to the effector

Question 25

The effector

Answer 25

Provides the means to respond

Question 26

The response

Answer 26

Reduces the effect of the stimulus and returns variables to homeostatic levels

Question 27

Three main components of a feedback loop

Answer 27

1. Receptor 2. Control center creates the set point: tells what particular value should be i.e. 98.6 3. Effector

Question 28

The AFFERENT pathway

Answer 28

Approaches the control center

Question 29

The EFFERENT pathway:

Answer 29

Exits the control center

Question 30

Negative feedback mechanisms:

Answer 30

- seek to maintain a constant state - shuts off/negates stimulus - is more common Aka the break

Question 31

Positive feedback mechanisms:

Answer 31

- add energy to the system and increases output repeatedly - response is accelerated Aka the gas

Question 32

An ex of neg feedback is

Answer 32

Regulation of body temp

Question 33

True or false positive feedback is a way to maintain homeostasis

Answer 33

FALSE

Question 34

In positive feedback the effector output:

Answer 34

Reinforces or exaggerates the stimulus

Question 35

Two examples of pos feedback include

Answer 35

Blood clotting | Labor contractions during birth

Question 36

Homeostatic imbalance is often used as a def of?

Answer 36

Disease

Question 37

A disturbance of homeostasis or the body's normal equilibrium is known as

Answer 37

Homeostatic imbalance

Question 38

Overwhelming the usual neg feedback mechanisms allows destructive positive feedback mechanisms to take over which is a form of

Answer 38

Homeostatic imbalance

Question 39

What is a feedback control loop?

Answer 39

How the body reacts to changes / external factors

Question 40

Explain the diff b/w pos and neg feedback loops

Answer 40

Neg stops stimulus Pos exaggerate stimulus Neg does maintain homeostasis Pos doesn't maintain homeostasis

Question 41

What happens to your homeostatic mechanisms when u have a fever?

Answer 41

- Body temp increases - Body resets set point to the fever temp - It increases the temp to keep bacteria/ virus from replicating - goes back to the original set point AFTER the virus is gone

Question 42

Homeostasis can be described as

Answer 42

A maintenance of internal environment

Question 43

Sneezing is pos or neg feedback?

Answer 43

Pos