Honors Biology
Unit 4 – Circulatory and Respiratory Systems
Name_______________________________
Date_____________________
block___
Textbook: Chapters 22 and 23
Unit Test: 60pt test on Tuesday Nov 26
Essential Questions
1. What is the difference between arteries, capillaries, and veins? What is the systemic circuit and
the pulmonary circuit?
2. Name the chambers of the heart and all the valves. Explain what the pacemaker is and how it
maintains the heartbeat rhythm. What is blood pressure and why is it reported as two different
numbers?
3. What are the major components of blood? Explain the function of the blood plasma, the red
blood cells, the white blood cells (in general; we will do specifics of immune system later in the year), and
the platelets.
4. Describe the function of the respiratory system. Trace the path of air from the mouth to the
alveoli. Then explain how the oxygen gets into the bloodstream, and continue the path of the
oxygen to a cell in your big toe. Trace the path of blood through arteries, capillaries, veins, and
the heart. Include where oxygen, carbon dioxide, nutrients and wastes are picked up/dropped
off utilizing the concept of diffusion. Explain the pathway of carbon dioxide waste from a cell
in your big toe back to your lungs, and then out into the air.
6. Explain the process of negative pressure breathing.
7. Name the two main structures in the brain that help regulate breathing rate, and how they
accomplish this.
8. Explain how hemoglobin carries oxygen, and how hemoglobin helps transport CO2 and buffer
the blood.
Nov 11
NO SCHOOL
VETERANS
DAY
Nov 12
(Monday schedule;
no double block)
no homework
due today
Nov 13
Nov 14
Nov 15
Notes, vocab
23.1 – 23.6
Notes, vocab
23.7-23.15
Blood pressure
lab due
Nov 18
Nov 19
Nov 20
Nov 21
Nov 22
Review
worksheet
packet due
Nov 25
Quiz
(then respiratory system
activity due/handed in at
end of double block)
Notes, vocab
22.1-22.6
Notes, vocab
22.7-22.12
Nov 27
(half day of school)
Nov 28
Review
worksheet
packet due
Nov 29
Essential
questions
Due in google
drive
Unit Test
(60pts)
(microscopes lab
second block)
Thanksgiving
Break
Thanksgiving
Break
Nov 26
microscopes lab
Unit 4 Vocabulary
1
Chapter 23
Circulatory system
capillaries, interstitial fluid, blood, systemic circuit, pulmonary circuit, arteries, veins,
venule, atrium (plural, atria), ventricle, arterioles, capillary beds
Heart and blood circulation
pulmonary arteries, pulmonary veins, aorta, superior vena cava, inferior vena cava,
cardiac cycle, diastolic pressure, systolic pressure, pacemaker, heart attack,
cardiovascular disease, atherosclerosis, blood pressure, pulse, hypertension
Blood
plasma, platelets, fibrin, fibrinogen, red blood cells, anemia, white blood cells
Chapter 22
gas exchange, respiratory surface
human respiratory system: lungs, diaphragm, oxygen, carbon dioxide, pharynx, mucus,
larynx, trachea, bronchi (singular, bronchus), bronchioles, alveoli
breathing: negative pressure breathing, vital capacity, breathing control center, pons,
medulla
2