Alu 301 ap - Study guides, Class notes & Summaries

ALU 301 A&P CHAPTER 21 HUMAN DEVELOPMENT & GENETICS QUESTIONS AND ANSWERS

Alleles Gene possibilities. A person has two alleles for each protein or trait, they can be the same or different. Amnion an embryonic membrane that holds the fetus suspended in amniotic fluid; fuses with the chorion by the end of the third month of gestation Amniotic fluid the fluid contained within the amnion; cushions the fetus and absorbs shock Autosomes chromosomes other than the sex chromosomes; for people there are 22 pairs of autosomes in each somatic cell Cleavage the series...

Organ systems involved in Movement Muscular- Moves the bones Skeletal- bones are moved at joints by muscles Nervous-transmits impulses to muscle to cause contraction Respiratory- Exchanges O2 and CO2 between the air and blood. Circulatory: transports O2 to muscles and removes CO2 Muscle Structure 1. Muscle fibers (cells) are specialized to connect, shorten and produce movement. 2. A skeletal muscle is made of thousands of muscle fibers. 3. Tendons attach muscles to bones Antagonistic...