Fill me in
When you breathe in, you _____________ oxygen into your lungs.
inhale
QUADRUPLE POINTS!!!
Which term describes how body systems work together to perform complex tasks?
A. Malfunction
B. Integrate
C. Compensate
D. Filter
B - Integrate
During a basketball game, a player's breathing rate and heart rate both increase significantly. Which statement BEST explains why these two systems must work together?
A. The respiratory system needs the cardiovascular system to remove carbon dioxide from the lungs
B. The respiratory system brings in oxygen, and the cardiovascular system delivers it to active muscles
C. The cardiovascular system produces oxygen that the respiratory system distributes
D. The respiratory system stores energy that the cardiovascular system releases
B. The respiratory system brings in oxygen, and the cardiovascular system delivers it to active muscles
TRIPLE POINTS!!!
T / F: All body systems are interdependent, meaning they rely on each other to function properly.
TRUE - Body systems depend on each other; when one fails, others are affected.
The kidneys act as a _____________ to remove waste products from the blood.
filter
QUADRUPLE POINTS!!!
Blood vessels called _____________ carry blood away from the heart to the body.
arteries
What carries blood back TO the heart?
A. Arteries
B. Kidneys
C. Veins
D. White blood cells
C - Veins
DOUBLE POINTS!!!
A person's kidneys fail and can no longer filter waste from the blood. Which system would be MOST immediately affected?
A. Digestive system
B. Respiratory system
C. Cardiovascular system
D. Skeletal system
C. Cardiovascular system
DOUBLE POINTS!!!
T / F: White blood cells are pathogens that cause disease in the body.
FALSE - White blood cells are part of the immune system that FIGHT pathogens; they are not pathogens themselves. Pathogens are disease-causing organisms like bacteria and viruses.
DOUBLE POINTS!!!
Bacteria and viruses are examples of _____________ that can cause disease.
pathogens
Your body's ability to maintain stable internal conditions is called _____________.
homeostasis
Which type of muscle can you control consciously, like moving your arm?
A. Involuntary muscle
B. Cardiac muscle
C. Voluntary muscle
D. Reflex muscle
C - Voluntary muscle
After eating a large meal, a student feels sleepy and their digestive system is very active. Which statement explains what is happening?
A. Only the digestive system is working; other systems shut down
B. The cardiovascular system redirects blood flow to support digestion, affecting energy levels
C. The respiratory system stops providing oxygen to conserve energy
D. The nervous system is not involved in digestion
B. The cardiovascular system redirects blood flow to support digestion, affecting energy levels
T / F: When you inhale, carbon dioxide enters your lungs, and when you exhale, oxygen leaves your lungs.
FALSE - When you inhale, OXYGEN enters your lungs. When you exhale, CARBON DIOXIDE leaves your lungs. (They are reversed in the statement.)
When muscles _____________, they become shorter and tighter to create movement.
contract
The digestive system breaks down food to release _____________, which provides energy for the body.
nutrients
What is the waste gas that your body produces and must exhale?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
B - Carbon dioxide
A student accidentally touches a hot pan and immediately pulls their hand away before even feeling pain. Which statement BEST describes this response?
A. The muscular system acts independently without nervous system input
B. The spinal cord coordinates the reflex between sensory and motor nerves
C. The digestive system alerts the hand to danger
D. The immune system protects the hand from heat
B. The spinal cord coordinates the reflex between sensory and motor nerves
T / F: A reflex is voluntary, meaning you consciously decide to make it happen.
FALSE - A reflex is INVOLUNTARY, meaning it happens automatically without conscious thought. You don't decide to do it; your body responds immediately.
A disease that lasts for a long time or keeps coming back is called _____________.
chronic
A _____________ is an automatic response to danger, like pulling your hand away from a hot stove.
reflex
When the nervous system sends a message to tell muscles to move, this message is called a:
A. Stimulus
B. Antibody
C. Enzyme
D. Signal
D - Signal
A student gets a cut that becomes infected with bacteria. White blood cells travel through the bloodstream to fight the infection. Which systems are working together?
A. Immune and cardiovascular systems
B. Digestive and respiratory systems
C. Muscular and skeletal systems
D. Nervous and excretory systems
A. Immune and cardiovascular systems
T / F: Arteries and veins both transport blood, but they carry it in different directions relative to the heart.
TRUE - Arteries carry blood AWAY from the heart; veins return blood TO the heart.
Scientists use _____________ to support their claims and prove their ideas are correct.
evidence