Circulatory System
What is the main organ involved in the circulatory system?
The Heart
What type of digestion is teeth chewing food considered?
Mechanical Digestion
What gas do we breathe out?
Carbon Dioxide
What shape is a red blood cell?
What are specialised cells?
Cells that perform specific functions.
How many chambers does the human heart have?
Four
What organ in the digestive system is approximately 5 meters long?
Small Intestine
Trachea
What type of blood cells are made in the bone marrow and form part of the immune system?
White blood cells
What type of digestion occurs when enzymes break down food in the digestive system?
Chemical Digestion
What cells carry oxygen to the body's tissues?
Red Blood Cells
Describe the role of the stomach in food digestion.
To breakdown food further and kill any bacteria in the food.
The air sacs on the lungs that allow gas exchange are called __________?
Alveoli
What component of a red blood cell allows oxygen to bind to be transported around the body?
Haemaglobin
What are capillaries?
Vessels that connect arteries and veins.
What chamber of the heart is responsible for pumping blood around the body.
Left ventricle
What organs do not have food pass through them during Digestion?
Liver and Pancreas
What is the epiglottis?
A flap that closes over the windpipe during swallowing to prevent food from being inhaled.
What are the 4 main components of blood? (100 points per correct answer)
1. Red Blood Cells,
2. Plasma,
3. White Blood Cells,
4. Platelets
What is another word commonly used to describe the larynx?
Fill in the blanks:
__________(1) carry blood away from the heart and __________ (2) carry blood back to the heart.
1. Arteries
2. Veins
What is peristalsis?
Involuntary muscle movement causing a wave-like motion to move food and liquid through the digestive system.
What structure in the respiratory system lifts the rib cage allowing suction of air into the lungs?
Diaphragm
What is the function of a white blood cell?
To protect our bodies from sickness - circulating bloodstream in search of harmful pathogens.
Describe the difference between cells, tissues, organs and systems.
Cells - a small singular unit within a living organism.
Tissue - a group of similar cells that have come together to perform a specific task
Organs - a structure made of two or more types of tissues that carry out specific functions.
System- a group of organs carrying out functions essential to the human body.