Across
- 4. the number of times the heart beats per minute
- 5. the upper chamber of the heart that receives blood coming in from the veins
- 7. a condition in which there is thickening and hardening of the arteries
- 9. relating to, or affecting the lungs
- 10. the lower chamber of the heart that squeezes blood out into the arteries
Down
- 1. Cavity a hollow space in the body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart
- 2. relating to the blood vessels, which includes the arteries, capillaries, and veins
- 3. a different form of a gene that controls a certain trait.
- 6. two dominant alleles of a contrasting pair fully expressed at the same time in the heterozygous individual.
- 8. the empty space of the heart where blood is contained