5 Written questions
5 Matching questions
- Neurosecretory Cells
- Nodes of Ranvier
- Sarcoplasmic Reticulum
- a An integrated group of cells with a common structure, function or both
- b Gap in the myelin sheath of certain axons where an action potential may be generated. In saltatory conduction, an action potential is regenerated at each node, appearing to "jump" along the axon from node to node
- c A longitudinal bundle in a muscle cell (fiber) that contains thin filaments of actin and regulatory proteins and thick filaments of myosin
- d A specialized endoplasmic reticulum that regulates the calcium concentration in the cytosol of muscle cells
- e ...
5 Multiple choice questions
- A portion of the pituitary that develops from nonneural tissue, consists of endocrine cells that synthesize and secrete several tropic and non tropic hormones
- The regulatory protein that control the position of tropomyosin on the thin filament.
- One of the three divisions of the autonomic nervous system, generally enhances body activities that gain and conserve energy, such as digestion and reduced heart-rate, decrease breathing, storing glycogen for energy in the liver
- A phenomenon of neural integration in which the membrane potential of the post-synaptic cell in a chemical synapse is determined by the combined effect of EPSPs or IPSPs produced in rapid succesion
- The fluid filling the spaces between cells in most animals
5 True/False questions
Myosin → A type of motor protein that associates into filaments that interact with actin filaments to cause cell contraction
Hyperpolarization → A change in a cell's membrane potential such that the inside of the membrane becomes more negative relative to the outside. Hyperpolarization reduces the chance that a neuron will transmit a nerve impulse.
Connective Tissue → Tissue consisting of long muscle cells that can contract, either on its own or when stimulated by nerve impulses
Graded Potential → In a neuron, a shift in the membrane potential that has an amplitude proportional to signal strength and that decays as it spreads.
Refractory Period → An organism for which external sources provide most of the heat for temperature regulation.