Human Body

our noses moisten, warm and _________ the air that we inhale

smallest basic unit of structure and function is a _________

this nutrient is needed in order for all body processes to take place

type of muscle found attached to the bones

this liquid carries needed substances to and from body cells

this vessel carries blood to the heart, usually high in CO2 and low in O2

a group of different tissues that work together is called a(n) _____________

an organ in the circulatory system

This vessel carries blood away from the heart, usually high in O2.

an organ in the digestive system

this human body system makes our blood cells

process which gases are exchanged between alveoli & capillaries

a group of organs that work together is called a __________

an organ in the respiratory system

capillaries must be this size in order for diffusion to to take place

This vessel is where diffusion of oxygen & other substances occur.

type of muscle found in the heart

this type of blood cell carries oxygen

this type of blood cell fights disease