Special Senses
What muscle controls the amount of light that enters the eye?
Iris
What are the pumping chambers of the heart?
Left & Right Ventricles
What elastic organ is the site of fetal development within the female reproductive system?
What 3 changes are made to the air as it passes through the nasal cavity?
Warm, Humidify, Clean
What 2 structures are responsible for both mechanical and chemical digestion?
Mouth & Stomach
What two senses rely on chemoreceptors to sense stimuli?
Smell & Taste
What is the largest artery in the body?
Aorta
What 2 reproductive structures are also part of the endocrine system due to their production of major hormones?
Testes & Ovaries
What structure is more commonly known as the windpipe?
Trachea
What enzyme in the saliva is responsible for the breakdown of carbohydrates?
Amylase
What is the scientific name of the eardrum?
Tympanic Membrane
Sinoatrial (SA) Node
Where does fertilization typically occur?
Fallopian Tubes
What structure blocks the entrance to the respiratory system during the act of swallowing?
Epiglottis
What structure stores excess bile to assist in breaking down exceptionally fatty meals?
Gallbladder
What structure in the eye focuses light onto the retina, allowing us to see clearly from multiple distances?
Lens
What iron-containing protein attaches to oxygen in the blood?
Hemoglobin
What is produced during oogenesis?
Ova (Eggs)
What structures in the lungs are the site of gas exchange where oxygen is diffused into the capillaries?
Alveoli
What chemical assists hydrochloric acid in the stomach in breaking down proteins?
Pepsin
What 2 structures in the inner ear house the mechanoreceptors that sense balance?
Vestibule & Semicircular Canals
What is the scientific name of the cardiac muscle that is damaged during a heart attack?
Myocardium
What structure must dilate up to 10 times its normal size in order to deliver a baby?
Cervix
What is the amount of air that in inhaled/exhaled with every breath under normal conditions?
Tidal Volume
What is the process of pushing food down the throat using wave-like, muscular contractions?
Peristalsis