What is the function of the cardiovascular system?
to deliver oxygen and nutrients to many parts of the body; to allow excretion of waste through blood
This organ is the main site of gas exchange in the body
The lung
The esophagus
These cells are the basic building blocks of the nervous system
Neurons
This pair of organs filters waste from the blood to the urine
Kidneys
A type of blood vessel, these carry blood away from the heart
Arteries
This muscle contracts and flattens during inhalation, increasing the size of the thoracic cavity
The diaphragm
The stomach secretes this acid to aid in digestion
Hydrochloric acid
This part of the nervous system includes the brain and spinal cord (hint: CNS)
Central nervous system
This functional unit of the kidney filters blood and forms urine
Nephron
These delicate blood vessels facilitate gas exchange with tissues or organs.
Capillaries
This is the tiny air sac in which oxygen and carbon dioxide exchange occurs
Alveolus
This is the primary organ in which nutrient absorption occurs
The small intestine
This system controls involuntary actions such as heartbeat and digestion (hint: ANS)
Automatic nervous system
The excretory system works closely with this system to maintain blood pressure
Cardiovascular system
What is the name of the valve separating the right atrium and right ventricle?
Tricuspid valve
The voice box, located at the top of the trachea, is also known by this term
The larynx
This structure, attached to the cecum, is thought to have no significant function in digestion.
The appendix
This disorder, characterized by memory loss and cognitive decline, commonly affects older adults
Alzheimer’s
This painful condition is caused by solid deposits forming in the kidneys
Kidney stones
In what direction does blood flow through the heart, starting at the myocardial electrical impulse? (right atrium—> left ventricle, or left atrium—> right ventricle)
Right atrium—> left ventricle
Right atrium—>right ventricle—>lungs—>left atrium—>left ventricle—>arteries—>body
This flap of cartilage prevents food and liquids from entering the airway during swallowing
The epiglottis
This condition occurs when stomach acid flows backward into the esophagus
Acid reflux (or GERD)
Cochlea
This hormone regulates water reabsorption in the kidneys by controlling the permeability of the nephron’s collecting ducts.
Antidiuretic hormone (ADH)