5 Written questions
5 Matching questions
- Enteric Division
- IPSP (Inhibitory post-synaptic potential)
- Endocrine Glands
- Motor Division
- Muscle Tissue
- a One of the three divisions of the autonomic nervous system; consists of networks of neurons in the digestive tract, pancreas, and gall bladder; normally regulated by the sympathetic and parasympathetic divisions of the autonomic nervous system. (secretions + peristalsis can function independently from parasympathetic and sympathetic but can also be affected by it)
- b The internal systems of communication involving hormones, the ductless glands that secrete hormones directly into the interstitial fluid, from which they diffuse into the bloodstream.
- c An electrical change (usually hyperpolarization) in the membrane of a post-synaptic neuron caused by the binding of an inhibitory neurotransmitter from a presynaptic cell to a post synaptic receptor; makes it more difficult for a post-synaptic neuron to generate an action potential
- d Tissue consisting of long muscle cells that can contract, either on its own or when stimulated by nerve impulses
- e ?
5 Multiple choice questions
- The membrane potential characteristic of a nonconducting excitable cell, within the inside of the cell more negative than the outside
- A longitudinal bundle in a muscle cell (fiber) that contains thin filaments of actin and regulatory proteins and thick filaments of myosin
- 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.
- The potential that an excitable cell membrane must reach for an action potential to be initiated
- A change in a cell's membrane potential such that the inside of the membrane is made less negative relative to the outside. For example, a neuron membrane is depolarized if a stimulus decreases its voltage from the resting potential of -70 mV in the direction of zero voltage.
5 True/False questions
Essential Nutrients → A substance that an organism cannot synthesize from any other material and therefore must absorb in preassembled.
Metabolic Rate → A longitudinal bundle in a muscle cell (fiber) that contains thin filaments of actin and regulatory proteins and thick filaments of myosin
Connective Tissue → Animal tissue that functions mainly to bind and support other tissues, having a sparse population of cells scattered through an extracellular matrix
Tropomyosin → A type of motor protein that associates into filaments that interact with actin filaments to cause cell contraction
Neurosecretory Cells → The short time immediately after an action potential in which the neuron cannot respond to another stimulus, owing to the inactivation of voltage-gated sodium channels