Systems 1
The ____________ systems are most responsible for providing cells with oxygen and removing the carbon dioxide
Circulatory & Respiratory
What is a function of the respiratory system?
Supplies the blood with oxygen and delivers it to all parts of the body.
Emily is learning about the body systems and their functions. Which body system converts food into simpler substances for the body to absorb as nutrients?
Digestive System
Which body system is responsible for the movement of the body as well as the movement of internal organs?
Muscular System
The __________ and __________ systems work together to support the body, enable it to move, and protect internal organs.
Skeletal & muscular
Molly and Robert were running in the school track meet. The muscles in their arms and legs helped them run fast. Other muscles that you cannot see were also at work. The most important muscles for this track meet were the muscles in their ________.
Heart
The trachea branches into two narrower tubes called _________.
Bronchi
Peristalsis are waves of contractions that help move food down through the _______ from the mouth to the stomach.
Esophagus
The three types of muscle are skeletal, smooth, and _______.
Cardiac
The __________ system works with the nervous system to protect important organs such as the brain and spinal cord.
Skeletal
__________ enables living things to maintain a stable internal environment.
Homeostasis
True or False: The body systems work independently of each other. They do NOT work together to make the body function.
False! The body systems work very closely together to keep your body functioning!
Levels of Organization: From Cell --> Organism
Cells > Tissues > Organs > Organ System > Organism
What is the MAIN way the skin prevents pathogens from entering the body?
Acting as a barrier.
This organ is the primary organ of the integumentary system. It protects, regulates, and prevents water loss. It is your________.
Skin
The endocrine system is made up of ______ that send messages through hormones instead of electrical signals.
Glands
__________ bind to target cells to elicit a response.
Hormones
Each of these organs is part of a different human body system. Which organ helps in the removal of waste as part of the human excretory system?
Bladder
What is the bean shaped organ in the excretory system that filters waste from blood?
Kidney
What's the purpose of the body's immune system?
It recognizes pathogens, fights off infections, and tries to block pathogens from infecting the body.
Which of these is the human body's first line of defense against invading pathogens such as bacteria and viruses?
Skin
Receptors in the muscles provide the brain with information about body position and movement. In this case, the muscular system is working with the ___________.
Nervous System
What is the most basic unit of the nervous system?
Neuron
Because the common cold is caused by a ______________, it is useless to try to prevent or cure a cold with antibiotics.
Virus
The flu is a disease caused by the flu virus. Many other diseases, like pneumonia, are caused by bacteria. Do all microorganisms cause harm to the human body?
No, many microorganisms, like those in your gut, are beneficial.