Neuroscience
These are changes in membrane potential that do not generate an action potential.
What are graded potentials?
This protein is used to bind oxygen and carry it to tissues
What is hemoglobin?
This part of blood is used for clotting
What are platelets?
This skeletal system is used by arthropods
What is an exoskeleton?
Spikes in these hormones trigger ovulation
What are LH and FSH?
This is the short period of hyperpolarization after resting potential is reestablished
What is the relative refractory period?
A lipoprotein present in the alveoli of the lungs that break up surface tension
What is surfactant?
These monitor blood pressure
What are baroreceptors?
These cells are responsible for sequestering calcium in bone
What are osteoblasts?
This membrane does not move and causes the hairs in the cochlea to bend when they vibrate
What is the tectorial membrane?
The process through which the myelin sheath speeds up action potentials
What is saltatory conduction?
These are membranes that surround and protect the lungs
What are the pleural sacs?
This is the name of the pumping stroke of the heart
What is systole?
This is the thick band of a sarcomere
What is myosin?
This structure is largely made of neural tissue and makes oxytocin and ADH
What is the posterior pituitary?
This is the membrane potential at which Voltage gated sodium channels become inactive
What is +40mV?
These muscles contract and relax to control the volume of the chest cavity
What are the external intercostals and diaphragm?
This circulatory system is used by insects
What is an open circulatory system?
These are the subunit that makes up muscle fibers
What are myofibrils?
These cells implant in the endometrium to anchor a developing embryo
What are trophoblast cells?
These neuroglia could be referred to as the “custodians of the nervous system”
What are microglia?
The process through which gills maintain high oxygen gradients
What is countercurrent flow?
These allow depolarization to spread throughout the heart
What are gap junctions?
This protein blocks the myosin binding sites on actin and move in the presence of calcium
What is tropomyosin?
This is an event in which most animal phyla appeared in the fossil record
What is the Cambrian radiation or Cambrian explosion?