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Nervous System
Muscular System
Endocrine System
Reproductive System
Animal Development
100
This is the cell of the nervous system.
What is the neuron?
100
This is the functional unit of a muscle contraction.
What is the sarcomere?
100
This is considered the "major gland" of the body.
What is the hypothalamus?
100
The male testes and female ovaries.
What are the reproductive gonads?
100
This is the part of the sperm that contains hydrolytic enzymes.
What is the acrosome?
200
This is the part of the neuron that receives the signal from the previous neuron.
What are the dendrites?
200
These are the three types of muscle tissue.
What are skeletal, cardiac, and smooth?
200
These are hormones that have other glands as their target.
What tropic hormones (aka. tropins)?
200
Fertilization occurs here.
What is the oviduct?
200
These are the three primary germ layers.
What are the ectoderm, mesoderm, and endoderm?
300
These are the cells that make up the myelin sheath.
What are Schwann cells and oligodendrocytes? (or glial cells)
300
This ion is needed in order for the muscle to return to a relaxation state.
What is Calcium?
300
These are the hormones involved in blood sugar regulation.
What are insulin and glucagon?
300
These are the hormones that control ovulation.
What are Follicle Stimulating Hormone and Luteinizing Hormone?
300
This is the process that produces the primary germ layers.
What is gastrulation?
400
This part of the brain controls breathing.
What is the medulla oblongata?
400
During muscle contraction, ATP is converted to these two molecules.
What are ADP and phosphate?
400
These are two hormones released by the anterior pituitary.
What are oxytocin and ADH?
400
Spermatogenesis occurs here.
What is are the seminiferous tubules?
400
This primary germ layer gives rise to the reproductive organs of animals.
What is the mesoderm?
500
This enzyme assists in the binding of acetylcholine to its receptor on the post synaptic cell.
What is cholinesterase?
500
These are the parts of the sarcomere that shorten during a muscle contraction.
What are the I bands and the H zones?
500
This is an iodinated amino acid that increases the oxygen consumption and metabolic rate of nearly all cells.
What is thyroxine?
500
These are the hormones produced by the corpus luteum.
What are estrogen and progesterone?
500
These are the four extraembryonic membranes in amniotes.
What are the chorion, yolk sac, amnion, and allantois.