Category 1
which body system sends messages back and forth between the brain and other parts of the body
nervous system
what do the kidneys do
filter blood then remove waste and extra water to make urine
which organ system makes blood cells
skeletal system
describe the path the blood takes through the circulatory system
oxygen poor blood into right atrium then goes to right ventricle, then into lungs, then oxygen rich blood goes to left atrium, then left ventricle, then through aorta into body
what are the functions of the respiratory system
to bring oxygen into the body and remove CO2
what are the major functions of the integumentary system
protect against injury
controls body temp
removes waste
gathers info about environment
produces vitamin d
paired up, which 2 body systems bring oxygen to the body
respiratory and circulatory
what is name of small flap of tissue that seals off trachea during swallowing
which 2 body systems work together to prepare and distribute nutrients for cells
digestive and circulatory
what are the 3 functions of the circulatory system
transport oxygen and nutrients
removes waste
fights diseases
what is the septum
the wall between the right and left sides of the heart
what is the main purpose/function of white blood cells
fights diseases
what is the function of valves
to prevent blood from going backwards
what are the 3 types of muscle tissue
skeletal, cardiac, and smooth muscle
in which blood vessels are gases exchanged between blood and body cells
capillaries
how do muscles and bones work together to create movement
muscles pull on bones
what are the functions of the endocrine system
regulate body temp
metabolism
development
reproduction
maintain homeostasis
regulates organ systems
how do pairs of muscles work together
they work together by pulling, contracting and relaxing
what are pathogens
micro-organisms that make us sick
what is the thick column of nervous tissue that links the brain to the nerves in the peripheral nervous system
spinal cord
what is the function of the excretory system
to remove cellular waste
what structures are inside the small intestine that enables the small intestine to absorb nutrients
villi
what is the main purpose of the small intestine
to have the maximum absorption of nutrients
what type of blood vessel carries blood away from the heart
artery
what happens in the large intestine
it absorbs water and eliminates indigestible food