Endocrine system
Whats a hormone?
Chemical messengers that send signals to organs
What is membrane potential?
When an electrical potential exists across the plasma membrane
What is the difference between asexual and sexual reproduction?
Asexual reproduction is when offspring inherits identical DNA as parent
Sexual reproduction is the fusion of two haploid gametes and the offspring shares both DNA's
What cell secretes histamine?
Mast cell
What is another name for a cladogram?
Anna
How are hormones regulated?
Negative feedback
Explain the three parts of a neuron
Dendrites- receive electrical signals and convert to chemical
Cell Body- contains the nucleus and integrates electrical signals
Axon- conducts electrical signals
What are the three steps of asexual reproduction?
Budding, Fission, and Parthenogenesis
Describe the arteries, capilliries, and veins
Arteries- carry oxygenated blood out of the heart
Capillaries- take blood through tissue
Veins- take deoxygenated blood back inside the heart
Favorite topic?
Osmoregulation
What hormones are produced by the pancreas to maintain homeostasis?
Antagonistic hormones
How are the molecules moving in hyperpolarization?
Potassium ions are leaving the cell, and chloride ions are passing through channels into the cell
What is the zona pellucida?
A protective layer that surrounds the plasma membrane of a egg cell
What is a macrophages?
Immune cell that engulfs pathogens and regulated inflammation
Would you rather be an octopus or a squid?
Octopus
What is the diffrence between antieior and posterior pitutray?
Posterior stores the neuron endocrine signals
Anterior secretes regulatory hormones
List the 4 phases in the action potential
Resting potential, depolarization phase, repolarization phase, and hyperpolarization phase
What is the difference between primary and secondary oocytes?
Primary oocytes are the one cell that can mature into an egg
Secondary oocytes are rested in miosis two until a sperm fertilizes it
What purpose does the naval cavity serve for inhalation?
Filtering bacteria and dust
Favorite chordata?
human
Explain the neuron endocrine to endocrine system
Integrates nervous and endocrine systems by regulating physiological processes
During peak depolarization, what is happening to the channels?
The sodium gated channel is inactive, and the potassium gated channels are open
What is the polar bodies?
The three cells after miosis that don't turn into a egg
What cell in made in bone marrow?
White blood cells
Rank Kevin Barry on a scale of 1-10
10!