New January Science Review Vocabulary Flashcards
Excretory
It helps maintain Homeostasis
Nasal cavity
It’s in your nose and keeps your nose moist.
Pharynx
Known as the throat pathway for food.
Larynx
The voice box splits into esophagus then the Trachea.
Trachea
Know as the windpipe and goes to the Bronchi and Lungs
Bronchi
The bronchi, singularly known as a bronchus, are extensions of the windpipe that shuttle air to and from the lungs.
Bronchioles
incoming air is supplied to each alveolus.
Alveoli
function it is to exchange oxygen and carbon dioxide molecules to and from the bloodstream.
Diaphragm
separates the thoracic cavity, containing the heart and lungs.
Atrium
Blood enters the heart through the two atria and exits through the two ventricles.
Ventricles
During systole, the ventricles contract, pumping blood through the body.
Artery
Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries,
Vein
They are responsible for returning deoxygenated blood back to the heart after arteries carry blood out.
Capillaries
Capillaries are very thin blood vessels that were first discovered in frog lungs in 1661. They bring nutrients and oxygen to tissues and remove waste products.
Urea
a colorless crystalline compound which is the main nitrogenous breakdown product of protein metabolism
Urine
a watery, typically yellowish fluid stored in the bladder and discharged through the urethra.
Kidney
each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, excreting urine.
Ureter
the duct by which urine passes from the kidney to the bladder or cloaca.
Urinary bladder
The urinary bladder is a muscular sac in the pelvis, just above and behind the pubic bone.
Urethra
the duct by which urine is conveyed out of the body from the bladder, and which in male vertebrates also conveys semen.
