bio lab

4. this part of the brain relays sensory information and acting as a center for pain perception
7. pyramid-like structures, that consists of the bulk of nephron structure
9. when the heart muscle contracts and pumps blood from the chambers into the arteries
11. a condition in which the air sacs of the lungs are damaged
16. when the heart muscle relaxes and allows the chambers to fill with blood
18. diagnostic device that measures the amount of air breathed in and out
19. initiation and coordination of voluntary activity in the body
20. food moves here after the esophagus where it is stored until it moves to the gizzard of the worm

1. each of the two main chambers of the heart, left and right
2. infoldings for more surface area inside the intestine of the worm
3. the duct by which urine passes from the kidney to the bladder
5. an instrument used to amplify heart sounds
6. oxygen depleted blood that returns to the heart
8. below thalamus that controls body temperature, involved in sleep and emotional activity
10. part of the worms stomach used to grind food
12. the three membranes enclose the brain and spinal cord.
13. unusual sound heard between heartbeats
14. a groove on the surface of the brain
15. oxygenated rich blood from heart to body
17. ,bean shaped organ that filters blood
20. function is to coordinate and regulate muscular activity