Name: __________________
Block: ____________
Date: ____________
Homeostasis and Human Organ Systems Test
Part 1 - Homeostasis
1. Short answer
a. What is homeostasis? Why is it important to the human body?
 INTERNAL BALANCE WHEN EXTERNAL CHANGES
 SURVIVAL
(4pts)
b. Homeostasis requires the constant gathering and processing of information. This is
accomplished by a FEEBACK LOOP
2. Below is an example of a feedback loop. Why/how is it important for homeostasis?
(2pts)
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________
3. When holding your breath carbon dioxide accumulates in your blood. Describe the homeostatic
reaction your body undergoes when this occurs.
(4pts)



CO2 CHEMORECEPTORS DETECT HIGHER LEVELS OF CO2
BREATHING INCREASE (INTERCOSTALS MUSCLES AND DIAPHRAGM)
CO2 LEVEL DECREASES & SWITCHES OFF
Part 2 - Organ Systems
Word bank: alveolus, anus, aorta, appendix, arteriole, artery, atrioventricular valve, B cells, blood
vessel, bronchus, bronchioles, capillary, circulartory, colon, descending aorta, diaphragm, digestive,
duodenum, epiglottis, esophagus, gallbladder, heart, immune, inferior vena cava, large intestine,
larynx, left atrium, left pulmonary artery, left pulmonary veins, left ventricule, leucocytes, liver,
lung, lymphocytes, nasal cavity, oral cavity, pancreas, pharynx, rectum, respiratory, rib cage, right
atrium, right pulmonary artery, right pulmonary veins, right ventricule, salivary glands, semilunar
valve, septum, small intestine, smooth muscle, stomach, superior vena cava, T cells, tongue, trachea,
vein, villus, venule
1. Which system am I?
(5pts)
a. Digestive I am responsible for the break down of food into nutrients that my body’s cells
can use.
b. Circulatory I am responsible for transporting materials (nutrients, gases,
wastes, etc.) around my body.
c. Respiratory I am responsible for bringing in oxygen and removing carbon
dioxide.
d. Immune I am responsible for fighting off foreign invaders.
2. Identify the structure:
a. Esophagus The tube that carries food from the mouth to the stomach.
b. Artery The blood vessel that carries oxygenated blood away from the heart.
c. Diaphragm The muscle at the bottom of the lungs that helps with breathing.
d. Gall bladder The storage unit for the enzyme used to digest fat.
e. epigeottis The flaplike structure that closes when you swallow so that food
will not enter into the lungs.
f. Small Intestine The organ where most nutrient absorption occurs.
g. Callipary The type of blood vessel most often involved in the exchange of
materials
h. Alveouls (Lung) The air sac where gas exchange takes place.
3. System diagrams- Label the parts indicated below.
Circulatory System: (4pts)
Respiratory System: (4pts)
1. Aorta
2. Vena Cava
3. Rt. Atrium
4. Rt. Ventricle
5. Pulmonary Artery
6. Pulmonary Vein
7. Left Atrium
8. Left Ventricle
1. Nasal Cavity
2. Epiglottis
3. Bronchus
4. Lungs
5. Diaphragm
6. Bronchible
7. Capillary Network
8. Alveolus
Digestive System: (4pts)
1. Liver
2. Gall BLadder
3. Large Intestine
4. Appendix
5. Stomach
6. Small Intestine
7. Rectum
8. Anus
(5pts)
Part 3 - Blood
Use the information in the table to answer the following questions:
(7pts)
The table below shows the results of blood type testing. Each of the people below had their
blood tested with antibody-A serum, antibody-B serum and antibody-Rh serum. “Clotted”
means a positive test for that antigen. Think about the lab activity
Person
Jason
Tanya
Sarah
Kelly
Anti-serum A
Anti-serum B
Anti-serum Rh
Blood type
Clotted
No clot
No clot
Clotted
No clot
Clotted
Clotted
Clotted
Clotted
No clot
Clotted
Clotted
A+
BB+
AB+
a.
Which person can Tanya donate blood to? Sarah/Kellly
Why? (use the terms antigen and antibody in your answer)
 Tanya has only B antigen
 Do not have B antibodies
b. Which person can Sarah receive blood from? Tanya
Why? (use the terms antigen and antibody in your answer)
 Sarah has only antibody A, Tanya doe not have antigen A
c.
Sarah and Kelly are the daughters of Jason and Tanya. Could there have been a problem
during their births? Explain why or why not.
 Tanya = Rh negative
 Girls = Rh Postive
 Therefore trouble with second baby
Part 5 - Immune System
Fill in the blank. Use each term only once.
(3pts)
Word bank: A cells, antibody, antigen, B cells, exocytosis, helper T cells, leukocyte, lymphocyte,
killer T cells, macrophages, phagocytosis, pinocytosis, platelets, red blood cells, S cells,
suppressor T cells, T cells, white blood cells
The nonspecific line of defense for the body includes the MARCOPHAGES which are cells that
seek out and engulf foreign invaders by PHAGOCYTOSIS (a type of active transport) and push the
invader’s antigens out its cell membrane.
The specific line of defense starts with HELPER T CELLS which are the cells that patrol the
body looking for foreign invaders. Once an invading antigen is found, a message is sent to the B
cells. These cells then make ANTIBODIES and MEMORY B CELLSthat are specific to the invading
antigen.
Part 6 - Digestive System
1. Describe the role of the liver in the digestion of food. Is it considered to be chemical or
physical digestion?
(2pts)
 LIVER MAKES BILE
 BILE SALTS EMUSLIFY FATS = PHYSICAL (FATS ARE BROKEN INTO DROPLETS
BOND ARE NOT BROKEN DOWN)
2. Using the diagram to the right, describe how nutrients are absorbed into the
circulatory and lymphatic system. Be sure to mention all structures involved and
all materials that are exchanged.
(5pts)
VILLI IN SMALL INTESTINE
CAPILLARY – DIFFUSION – AMINO ACIDS, GLUCOSE,
MINERALS, VITMINS
LACTEAL – FATTY ACIDS, GLYCEROL (DIFFUSING)
Part 7 - Respiratory System
1. Using the diagram to the right, describe how gases are brought into the circulatory system. Be
sure to mention all structures involved and all materials that are exchanged.
(5pts)
- ALVEOLI (W/ CAPILLARY AROUND) IN LUNGS
CO2 BROUGHT BACK FROM CELLS DIFFUSED INTO
ALVEOLI FROM BLOOD BREATH OUT
O2 BREATH IN DIFFUSED IN THE BLOOD,
DELIVER TO TISSUES
2. Where is cilia found in the respiratory system? What
is its function?
(2pts)
 NOSE & TRACHEA
 TRP INVADERS, EXPELL FROM BODY IN MUCUS
Bonus Question:
List the five functions/steps of the digestive system: (2.5 PTS)
1. ABSORPTION
2. INGESTION
3. DIGESTION
4. TRANSPORT
5. EGESTION/EMIMINATION
Name: __________________
Block: ____________
Date: ____________
Homeostasis and Human Organ Systems Test (M)
Part 1 - Homeostasis
1. Short answer
(4pts)
a. What is homeostasis? Why is it important for our survival?
_______________________________________________________________________
_______________________________________________________________________
___________________________________
b. Homeostasis requires the constant gathering and processing of information. This is
accomplished by a _________________________.
Below is an example of a feedback loop. Why/how is it important for homeostasis? (2pts)
__________________________________________________________________________
__________________________________________________________________________
______________________________________
3. When holding your breath carbon dioxide accumulates in your blood. Describe the homeostatic
reaction your body undergoes when this occurs.
(4pts)
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
______________
Part 2 - Human Organ Systems
1. Which system am I?
(5pts)
Word bank: circulatory system, digestive system, immune system, respiratory system, urinary
system
a. ____________________ I am the system responsible for the break down of food into
nutrients that my body’s cells can use.
b. ____________________ I am the system responsible for transporting materials
(nutrients, gases, wastes, etc.) around my body.
d. ____________________ I am the system responsible for fighting off foreign invaders.
e. ____________________ I am the system responsible for bringing in oxygen and removing
carbon dioxide.
2. System structures- Identify the structure:
(5pts)
Word bank: alveolus, artery, capillary, diaphragm, epiglottis, esophagus, gallbladder, small intestine
a. ____________________ The tube that carries food from the mouth to the stomach.
b. ____________________ The blood vessel that carries oxygenated blood.
c. ____________________ The muscle at the bottom of the lungs that helps with breathing.
d. ____________________ The storage unit for the enzyme used to digest fat.
e. _____________________ The flaplike structure that closes when you swallow so that
food will not enter into the lungs.
f. ____________________ The organ where most nutrient absorption occurs.
g. _____________________ The type of blood vessel most often involved in the exchange of
materials
h. _____________________ The air sac where gas exchange takes place.
3. System diagrams- Label the parts indicated below.
Circulatory System:
(4pts)
Word bank: aorta, inferior vena cava, left atrium, left pulmonary artery, left pulmonary veins, left
ventricle, right atrium, right pulmonary artery, right pulmonary veins, right ventricle, septum,
superior vena cava
1. ____________________
2. ____________________
3. ____________________
4. ____________________
5. ____________________
6. ____________________
7. ____________________
8. ____________________
Respiratory System:
(4pts)
Word bank: alveolus, bronchus, bronchioles, diaphragm, epiglottis, larynx, lung, nasal cavity, oral
cavity, pharynx, rib cage, trachea
1. ____________________
2. ____________________
3. ____________________
4. ____________________
5. ____________________
6. ____________________
7. ____________________
8. ____________________
Digestive System:
(4pts)
Word bank: anus, appendix, colon, duodenum, esophagus, gallbladder, large intestine, liver, oral
cavity, pancreas, rectum, salivary glands, small intestine, stomach, tongue, villus
F
G
H
I
J
K
L
M
N
1. ____________________
2. ____________________
3. ____________________
4. ____________________
5. ____________________
6. ____________________
7. ____________________
8. ____________________
Part 3 - Blood
Use the information in the table to answer the following questions:
(6pts)
The table below shows the results of blood type testing. Each of the people below had their
blood tested with antibody-A serum, antibody-B serum and antibody-Rh serum. “Clotted”
means a positive test for that antigen. Think about the lab activity!!
Anti-serum A
Anti-serum B
Anti-serum Rh
Blood type
Person
Jason
Tanya
Sarah
Kelly
a.
Clotted
No clot
No clot
Clotted
No clot
Clotted
Clotted
Clotted
Clotted
No clot
Clotted
Clotted
A+
BB+
AB+
Which person can Tanya donate blood to? ________________
Why? (use the terms antigen and antibody in your answer)
_________________________________________________________
_________________________________________________________
b. Which person can Sarah receive blood from? ________________
Why? (use the terms antigen and antibody in your answer)
_________________________________________________________
____________________________________________________________________
______________________________________________
c.
Sarah and Kelly are the daughters of Jason and Tanya. Could there have been a problem
during their births? Explain why or why not. Think about the Rh factor!
____________________________________________________________________
____________________________________________________________________
___________________________________
Part 4 - Immune System
Fill in the blank. Use each term only once.
(3pts)
Word bank: A cells, antibody, antigen, B cells, exocytosis, helper T cells, leukocyte, lymphocyte,
killer T cells, macrophages, phagocytosis, pinocytosis, platelets, red blood cells, S cells,
suppressor T cells, T cells, white blood cells
The nonspecific line of defense for the body includes the ____________________ which are
cells that seek out and engulf foreign invaders by ____________________ (a type of active
transport) and push the invader’s antigens out its cell membrane.
The specific line of defense starts with ____________________ which are the cells that
patrol the body looking for foreign invaders. Once an invading antigen is found, a message is sent to
the ____________________ cells. These cells then make ____________________ and
____________________that are specific to the invading antigen.
Part 5 - Digestive System
1. Using the diagram to the right, describe how nutrients are absorbed into the circulatory and
lymphatic system. Be sure to mention all structures involved and all materials that are exchanged.
Word bank: Villus, artery, central lacteal, lymphatic vessel, vein, epithelial cell, capillary network
(5pts)
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
______________________________1
2. Describe the role of the liver in the digestion of food. Is it considered to be
chemical or physical digestion?
(2pts)
____________________________________________________________
____________________________________________________________
____________________________________________________________
______
Part 6 - Respiratory System
1. Using the diagram to the right, describe how gases are brought into the circulatory system. Be
sure to mention all structures involved and all materials that are exchanged.
(5pts)
Word bank: capillary, alveoli, O2, CO2, diffusion, high, low
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________________________
____________________________
2. Where is cilia found in the respiratory system? What
is its function?
(2pts)
____________________________________________
__________________________________________________________________________
__________________________________________________________________________
_________
Bonus Question:
The universal donor in blood transfusions is ____________________.
The universal recipient in blood transfusions is ____________________.