Circulatory & Respiratory
How does the circulatory system respond to walking up a set of stairs?
The circulatory system increases the heart rate.
What body system best protects internal organs from being damaged?
Skeletal System
Which sensory organs are needed to eat and enjoy a meal? Choose three correct answers.
ears, nose, tongue
Name the organ in the Digestive System responsible to absorb the excess water from waste.
Large intestine
Which body system protects humans from viruses and bacteria?
Immune System
What is the name of the large muscle below the lungs that helps us breathe?
Diaphragm
The skin is the largest organ in the human body. What are two of its functions?
1. The skin acts as a wall to stop germs.
2. The skin covers and protects the body's organs.
What happens to sound waves when they reach the brain?
The brain figures out what kind of sound it is.
Describe the function of the small intestine.
The small intestine breaks down food and absorbs nutrients into the bloodstream. It is the main site where digestion is completed and nutrients are taken in by the body.
Draw and label the execratory system.
kidneys, bladder, and ureters, urethra
Why does breathing rates increase after exercise ?
Muscles need more oxygen to produce energy, and they also create more carbon dioxide as a waste product.
Why do you sweat when you get hot during exercise?
You sweat when you get hot during exercise because your body is trying to cool down. Sweat evaporates from your skin, which helps lower your body temperature.
Number the steps (1–4) to show how the message traveled through Khalid’s nervous system to help him move his foot:
2,4,3,1
Which organs secrete chemicals to the small intestine to help in digestion?
liver, and pancreas
What is the first line of defense in our body?
Skin, saliva, mucus in nose and trachea.
Explain how a blocked artery affects how blood and oxygen are delivered to muscles.
A blocked artery limits blood flow, reducing the oxygen delivered to muscles. This can cause pain or weakness, especially during physical activity.
What type of muscle is the following:
1. found in body organs
2. found in the heart
3. helps in movement
1. smooth muscle
2. cardiac muscle.
3. skeletal muscle
· Balancing while riding a bicycle → __________
· Solving a math problem → __________
· Breathing and heartbeat → __________
cerebellum
cerebrum
brain stem
Explain what will happen if the liver and the pancreas stopped sending digestive chemicals to the small intestines.
If the liver and pancreas stopped sending digestive chemicals to the small intestine, food would not be broken down properly. This would prevent the body from absorbing important nutrients needed for energy and growth.
What might happen if someone's kidneys stops working?
If someone's kidneys stop working, waste and extra water can build up in their body. This can make them very sick and may even be life-threatening if not treated.
Where does the blood go after it gets oxygen from the lungs?
After the blood gets oxygen from the lungs, it travels to the heart. The heart then pumps it to the rest of the body, delivering oxygen to the organs and muscles.
When the player bends his leg , the hamstring muscle contracts. Explain what will happen to the quadriceps in the same position(bending).
relaxes
The cerebrum is a region of the brain responsible for hearing processing. Explain whether a person would experience pain if the cerebrum is damaged.
If the cerebrum is damaged, a person may not process sound properly.
Explain how the circulatory and digestive systems work together for your body to work properly.
The digestive system breaks down food into nutrients, and the circulatory system transports those nutrients through the blood to different parts of the body. This teamwork helps your body get the energy and materials it needs to function properly.
Explain how does the circulatory and urinary system work together.
The circulatory and urinary systems work together to keep the body clean and balanced. The circulatory system brings waste-filled blood to the kidneys, and the urinary system removes the waste through urine.