Eye
What do the eyelashes do?
Protect the border of each eyelid from foreign objects
What is the auricle?
The shell-shaped structure surrounding the auditory canal.
What is blood considered?
The river of life.
What is the pericardium?
The sac enclosing the heart that is composed of three layers
What does the respiratory system do?
What do eyelids do?
They protect the eye, meeting at medial and lateral corners of eye
What is the common name for the tympanum?
The ear drum
How much of blood is composed of formed elements?
45%
What is the sternum?
The breastbone located in center of chest connecting two sides of ribcage
What are the organs in the respiratory system?
What are tarsal glands?
They are modified sebaceous glands associated with the eyelid's edges
What is emmetropia?
It is normal vision
How much of blood is composed of plasma?
55%
The muscle separating thoratic cavity from abdominopelvic cavity
What does the upper respiratory tract include?
Passageways from the nose to the barynx.
What are ciliary glands?
They are modified sweat glands that lye between the eyelashes and ducts
What is myopia?
It is nearsighted vision
What are the three types of formed elements?
Erythrocytes, leukocytes, and thrombocytes
What do heart valves do?
They allow blood to flow in only one direction thought the heart chambers from Atria through ventricles and out great arteries leaving heart
What does the lower respiratory tract include?
Passageways from the trachea to the abdomen.
What are the three layers of the eye from the outermost to innermost layers?
Fibrous, vascular, and sensory
What is hyperopia?
It is farsighted vision
Why was blood once viewed as magical?
Because once the blood was drained from the body, life departed
How many times does the heart contract in one cycle?
When following an O2 molecule, what are there 23 of?
There are 23 forks.