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respiratory and circulatory system

what is the definition of vein: blood vessels that carry blood to the heart
what is the definition of capillaries: tiny, thin-walled blood vessels that allow the exchange of gases and nutrients, between the blood and cells and located between arteries and veins
what is the definition of arteries: blood vessels that carry blood away from the heart
what blood cells contain hemoglobin? red blood cells
when you exhale air, does the air pass through the trachea or the pharynx first? trachea
when you inhale air, does the air pass through the trachea or the pharynx first? pharynx
you are given a sample from a person's lungs. looking at it under a microscope, you see many little round sacks that are covered with capillaries. what structures are you looking at? alveoli
where are blood cells produced? marrow
what are xylem and what do they do? xylem are tubes that transport water up from the roots to the rest of the parts of the plant.
how many chambers are in the heart? 4
name the parts of the human respiratory system, in order. nasal and oral cavity, pharynx, larynx, trachea, right and left bronchi, and the right and left lung.
what is the respiratory system? the system that controls the way we breathe, and contains the lungs, trachea, pharynx, larynx, oral and nasal cavity, and the bronchi
Created by: ls