24 Questions
What happens to the diaphragm when you exhale?
It relaxes and moves back upwards
Inhaled air contains more carbon dioxide than exhaled air.
False
What is the equation for respiration?
Glucose + oxygen → energy + water + carbon dioxide
Carbon dioxide is produced as a waste product of _______________ and must be removed from the body.
cellular respiration
Why do we breathe faster during exercise?
Because our body needs more oxygen
Cigarette smoke is good for the respiratory system.
False
Match the following parts of the respiratory system:
Diaphragm = Muscle that separates the chest cavity from the abdominal cavity Rib cage = Protective bony structure that surrounds the lungs Lungs = Organs that exchange oxygen and carbon dioxide
What is the purpose of the excretory system in relation to the respiratory system?
To remove waste products such as carbon dioxide from the body
What happens to the pressure inside the chest when we inhale?
It decreases and air moves into the lungs
The respiratory system interacts only with the environment.
False
What are the two main functions of the respiratory system?
To bring oxygen to the body and to remove carbon dioxide.
Air is warmed and cleaned as it travels through the ______ and nose.
mouth
Match the following parts of the respiratory system with their functions:
Trachea = Passes air into the lungs Bronchi = Not listed (Bronchi branch into bronchioles) Alveoli = Exchanges oxygen and carbon dioxide Diaphragm = Increases the size of the chest
What happens to the diaphragm when we inhale?
It contracts and pulls downwards
High blood pressure is a circulatory system problem.
True
What is the name of the tiny sacs where gas exchange takes place?
Alveoli
What is the function of the left side of the heart?
Pumping oxygenated blood to the rest of the body
Veins carry blood away from the chambers of the heart.
False
What is the main function of capillaries?
Where gas exchange takes place, oxygen passes through the capillary wall and into the tissues, and carbon dioxide passes from the tissues into the blood.
The fluid part of blood that carries important nutrients, hormones, and waste is called ______________.
plasma
What is the function of platelets?
Clumping together to form clots and stop bleeding
Match the following parts of blood with their functions:
Red blood cells = Carry oxygen to the tissues White blood cells = Produce antibodies to fight infections Platelets = Form clots to stop bleeding Plasma = Carry nutrients, hormones, and waste
Oxygenated and deoxygenated blood have different colors.
False
What is the main function of the heart's left side?
Pumping oxygenated blood from the lungs to the rest of the body.
Study Notes
Circulatory System
- High blood pressure (hypertension) can be managed by:
- Reducing salt and saturated fats in diet
- Increasing fresh fruit and vegetable intake
- Engaging in 30 minutes of moderate activity per day
- Maintaining a healthy weight
- Maintaining good oral hygiene
- Avoiding smoking and excessive alcohol consumption
Respiratory System
- The respiratory system brings oxygen to the body and removes carbon dioxide
- Breathing process:
- Air enters through the mouth and nose, then passes through the trachea and bronchi into the lungs
- Gas exchange occurs in the alveoli, where oxygen enters the blood and carbon dioxide is removed
- When we inhale:
- Ribcage expands, diaphragm contracts, and chest size increases
- Pressure inside the chest decreases, and air moves into the lungs
- When we exhale:
- Ribcage returns to its original size, diaphragm relaxes, and chest size decreases
- Pressure inside the chest increases, and air is forced out
- Inhaled air:
- Contains more oxygen and less carbon dioxide
- Exhaled air:
- Contains more carbon dioxide and less oxygen
- Respiration: glucose + oxygen → energy + water + carbon dioxide
- Common respiratory problems can be prevented by:
- Avoiding cigarette smoke
- Protecting against air pollution
- Eating a balanced diet rich in protein, vitamins, and minerals
- Drinking plenty of fluids
- Exercising regularly to keep the lungs healthy
Excretory System
- Common problems: urinary tract infections, kidney stones, kidney failure
- Proper care of the excretory system involves:
- Maintaining a healthy diet and lifestyle
- Staying hydrated
- Avoiding harmful substances
Nervous System
- The nervous system consists of:
- Brain
- Spinal cord
- Sensory organs
- Peripheral nerves
- The central nervous system is the control center of the body, comprising the brain and spinal cord
Circulatory System (continued)
- The heart pumps oxygenated blood from the lungs to the rest of the body
- Blood vessels:
- Veins: carry blood to the heart, have thin walls, and contain blood under low pressure
- Capillaries: found in muscles and lungs, microscopic, and have very low blood pressure
- Where gas exchange takes place
- Blood components:
- Plasma: fluid part of blood, carries nutrients, hormones, and waste
- Red blood cells: contain hemoglobin, carry oxygen, and are made in the bone marrow
- White blood cells: part of the immune system, produce antibodies, and destroy microorganisms
- Platelets: clump together to form clots and protect the body from bleeding
- Color of blood: oxygenated blood is brighter and lighter in color, while deoxygenated blood is darker
Learn how to take care of your circulatory system and reduce the risk of high blood pressure through diet, exercise, and healthy habits. Understand the connection between the circulatory system and other body systems like the respiratory system.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
