Biology
Define cells.
Basic building blocks of life.
What are sensory neurons?
They help your body detect things such as heat, cold pain, light, sound, taste, and touch.
CNS and PNS are the two main parts of the nervous system.
CNS - central nervous system
PNS - peripheral nervous system
What is the path of air from outside environment to the site of gas exchange?
mouth- pharynx (throat) - trachea (windpipe) - bronchi- blood- body cells
What are the main functions of the skeletal system?
support, protection, and movement
What is the primary function of the colon?
It absorbs excess water from the body before waste is eliminated.
During a sprint, Ayva's muscles work intensely to push her forward. As she runs, her breathing rate increases, her heart beats faster, and she sweats to stay cool. Which of the following best explains how multiple body systems are interacting during her sprint?
Her muscular system contracts to move her legs, her respiratory system brings in more oxygen, and her circulatory system delivers that oxygen to the muscles.
The heart has a right side and a left side, each performing different functions. Which of the following correctly describes the difference between the two sides?
The right side pumps oxygen-poor blood to the lungs, while the left side pumps oxygen-rich blood to the body.
Mrs. Jackson went walking on the beach and she suddenly step on a seashell that was hidden in the sand. She immediately pull her foot away to hold it. Which best describes why Mrs. Jackson responds this way?
Her sensory neurons in the PNS detected pain and sent signals to the CNS, which then processed the information and sent commands back through motor neurons in the PNS to move her foot.
The liver helps break down proteins into urea. Which system is the liver part of, and how does it connect to the excretory system?
Digestive system; produces waste that kidneys filter
What does these three body systems respiratory system, digestive system, and excretory system have in common?
All three help get rid of waste in the human body.
Respiratory system helps get rid of gas exchange,
digestive system breaks down food to absorb nutrients and removes undigested waste.
excretory system removes waste