16 Questions
What is the primary function of the respiratory system?
Bringing oxygen into the body and removing carbon dioxide
The diaphragm is a muscle that separates the abdominal cavity from the chest cavity.
True
What is the name of the tiny air sacs where gas exchange occurs in the respiratory system?
Alveoli
The process of exchanging oxygen and carbon dioxide between the alveoli and the blood is called _______________________.
gas exchange
Match the components of the excretory system with their functions:
Kidneys = Regulating electrolyte balance Ureters = Storing urine Bladder = Filtering waste and excess substances from blood Skin = Removing excess salt and water through sweating
What is the primary function of the kidneys in the excretory system?
Filtering waste and excess substances from blood
The liver is responsible for filtering blood and removing toxins in the excretory system.
True
What is the process called when the kidneys filter waste and excess substances from the blood?
Filtration
What is the role of the rib cage in the respiratory system?
To protect the lungs and help expand and deflate the chest cavity
The bronchi are responsible for filtering waste and excess substances from the blood.
False
What is the main function of the diaphragm in the respiratory system?
to separate the chest cavity from the abdominal cavity and facilitate breathing
The process of removing excess hydrogen ions from the body helps to _______________________ pH levels.
regulate
Match the components of the respiratory system with their functions:
Nose and Mouth = Air enters through nostrils or mouth Trachea = Air passes through trachea into bronchi Alveoli = Gas exchange occurs Diaphragm = Muscle that separates chest cavity from abdominal cavity
What is the main function of the kidneys in the excretory system?
All of the above
The bladder is responsible for filtering waste and excess substances from the blood.
False
What is the final step in the process of excretion?
Elimination
Study Notes
Respiratory System
Functions:
- Bringing oxygen into the body
- Removing carbon dioxide from the body
- Regulating pH levels by removing excess hydrogen ions
Components:
- Nose and mouth: air enters the body
- Trachea (windpipe): air passes through
- Bronchi: air tubes that branch off into lungs
- Bronchioles: smaller air tubes that lead to alveoli
- Alveoli: tiny air sacs where gas exchange occurs
- Diaphragm: muscle that separates chest cavity from abdominal cavity
- Intercostal muscles: muscles between ribs that help expand and contract chest cavity
Process of Respiration:
-
Inhalation:
- Diaphragm and intercostal muscles contract, expanding chest cavity
- Air enters through nose or mouth, passes through trachea, and into bronchi
- Bronchioles branch off into alveoli
-
Gas Exchange:
- Oxygen diffuses from alveoli into blood capillaries
- Carbon dioxide diffuses from blood capillaries into alveoli
-
Exhalation:
- Diaphragm and intercostal muscles relax, reducing chest cavity size
- Air, now rich in carbon dioxide, exits the body through nose or mouth
Excretory System
Functions:
- Removing waste products from the body
- Regulating electrolyte balance
- Maintaining acid-base balance
- Producing hormones that help regulate blood pressure
Components:
- Kidneys: filter waste and excess substances from blood
- Ureters: tubes that carry urine from kidneys to bladder
- Bladder: stores urine
- Urethra: tube that carries urine out of the body
- Skin: helps remove excess salt and water through sweating
- Liver: filters blood and removes toxins
- Lungs: remove carbon dioxide and other gases
Process of Excretion:
- Filtration: kidneys filter waste and excess substances from blood
- Reabsorption: kidneys reabsorb essential nutrients and ions back into bloodstream
- Secretion: kidneys secrete waste and excess substances into urine
- Urine Formation: urine is formed and transported through ureters to bladder
- Urine Elimination: urine is eliminated from the body through urethra
Respiratory System
- Brings oxygen into the body and removes carbon dioxide
- Regulates pH levels by removing excess hydrogen ions
Components of Respiratory System
- Nose and mouth: air enters the body
- Trachea: air passes through
- Bronchi: air tubes that branch off into lungs
- Bronchioles: smaller air tubes that lead to alveoli
- Alveoli: tiny air sacs where gas exchange occurs
- Diaphragm: muscle that separates chest cavity from abdominal cavity
- Intercostal muscles: muscles between ribs that help expand and contract chest cavity
Process of Respiration
- Inhalation: diaphragm and intercostal muscles contract, expanding chest cavity, and air enters through nose or mouth
- Gas exchange: oxygen diffuses from alveoli into blood capillaries, and carbon dioxide diffuses from blood capillaries into alveoli
- Exhalation: diaphragm and intercostal muscles relax, reducing chest cavity size, and air rich in carbon dioxide exits the body through nose or mouth
Excretory System
- Removes waste products from the body
- Regulates electrolyte balance
- Maintains acid-base balance
- Produces hormones that help regulate blood pressure
Components of Excretory System
- Kidneys: filter waste and excess substances from blood
- Ureters: tubes that carry urine from kidneys to bladder
- Bladder: stores urine
- Urethra: tube that carries urine out of the body
- Skin: helps remove excess salt and water through sweating
- Liver: filters blood and removes toxins
- Lungs: remove carbon dioxide and other gases
Process of Excretion
- Filtration: kidneys filter waste and excess substances from blood
- Reabsorption: kidneys reabsorb essential nutrients and ions back into bloodstream
- Secretion: kidneys secrete waste and excess substances into urine
- Urine formation: urine is formed and transported through ureters to bladder
- Urine elimination: urine is eliminated from the body through urethra
Respiratory System
- Brings oxygen into the body and removes carbon dioxide
- Regulates pH levels by removing excess hydrogen ions
Components of Respiratory System
- Air enters through nostrils or mouth
- Trachea (windpipe) divides into bronchi, which further divide into smaller bronchioles
- Alveoli are tiny air sacs where gas exchange occurs
- Diaphragm is a muscle that separates chest cavity from abdominal cavity and facilitates breathing
- Rib cage protects lungs and helps expand and deflate chest cavity
Process of Respiration
- Inhalation: diaphragm contracts, rib cage expands, and air enters nostrils or mouth
- Gas exchange: oxygen diffuses into blood, and carbon dioxide diffuses out of blood
- Exhalation: diaphragm relaxes, rib cage deflates, and air is pushed out of lungs
Excretory System
- Removes waste and excess substances from the body
- Regulates water and electrolyte balance
- Maintains acid-base balance
Components of Excretory System
- Kidneys filter waste and excess substances from blood
- Ureters are tubes that carry urine from kidneys to bladder
- Bladder stores urine until it is eliminated from the body
- Urethra is a tube that carries urine out of the body
Process of Excretion
- Filtration: blood flows through kidneys, and waste and excess substances are filtered out
- Reabsorption: useful substances are reabsorbed into blood
- Secretion: remaining waste is concentrated into urine
- Elimination: urine is eliminated from the body through the urethra
Learn about the functions and components of the respiratory system, including bringing oxygen into the body, removing carbon dioxide, and regulating pH levels. Explore the nose, trachea, bronchi, bronchioles, alveoli, and diaphragm.
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