Weeks #20 - 21
what are the three layers of the eye wall
fibrous, vascular, sensory
What are the 3 cone types
Blue Cone, Red Cone, and Green Cone
What does blood transfer
Nutrients, hormones, waste, and body heat
What does fibrous mean
connective tissue
How do you calculate heart rate in BPM
How many time it beats in 30seconds and then multiply it by 2
What are photoreceptors
Cells that respond to light
What are Rods
Photoreceptors allowing us to see in gray tones in dim light
What are Erythrocytes
Red blood Cells
What does the Fibrous pericardium do
protects heart from infections
What are the 4 heart valves
AV, SL, PSV, ASV
what % of receptors in the eye are sensory
70%
What are Cones
Photoreceptors allowing us to see details of our world in color under the bright light conditions
When a sample of blood is separated does plasma rise or sink
rises
Describe the right atrium
thin walled chamber that receives deoxygenated blood
To make blood flow in one direction
what is the cornea
transparent window that light enter trough the eye
What the difference between Convex and Concave
Convex- Curved outward
Concave- Curved inward
Whats the buffy coat
thin, whitish layer containing remaining formed elements
What does the right ventricle receive
deoxygenated blood
whats the BPM for Atrial cells
60bpm
what ere the 3 vascular regions
choroid, ciliary body, iris
How does the eye actually see the world
Reversed from left to right, upside down, and smaller than object
What % of body weight does blood take up
8%
3
What does the P wave do
starts the contraction