Circulatory
What is the main function of the heart?
pump blood throughout the body
What is the primary organ responsible for respiration?
lungs
What is the primary function of the skeletal system?
provide structure and support for the body
What is the primary function of the muscles in the body?
movement (through contracting and relaxing) and protecting the organs
What are the 2 main functions of the nervous system?
To transmit signals between parts of the body and respond to stimuli
What are the 2 main organs that are a part of the circulatory system?
heart & lungs
What is the process of taking in oxygen and releasing CO2?
respiration/breathing
How many bones does the average human body have?
206
Which muscle is responsible for pumping blood?
heart/cardiac muscle
What are the 2 main parts of the nervous system?
CNS - Central Nervous System and
PNS - Peripheral Nervous System
What is the role of the red blood cells?
carry oxygen-rich blood to cells around the body and bring CO2 from the body back to the heart
What muscle helps with breathing by contracting and relaxing?
diaphragm
What is the largest bone in the body?
femur (thigh bone)
What are the 3 main muscle types?
Smooth, cardiac and skeletal
What is a neuron?
specialized cell that transmits nerve impulses
How does blood pressure affect the thickness of veins and arteries?
Arteries are thicker because the pressure is higher; veins are thinner becasue the pressure is lower.
alveoli
What type of tissue connects bone to muscle?
tendons
What is an example of a smooth muscle?
muscles inside the intestines or esophogus
What part of the brain controls balance and coordination?
cerebellum
What are the 3 types of blood vessels?
arteries, veins and capillaries
How does smoking affect the respiratory system?
It damages the lungs and passageways
What part of the bone is responsible for making red blood cells?
bone marrow
How do muscles work in pairs?
When contracts, the opposing muscle relaxes
What is the role of the spinal cord?
send signals between the brain and other parts of the body