Important Terms - Lecture 15

Nerves and Muscles

Syllabus

Schedule

Critique guidelines

Sample exam questions

Intro bio mission statement

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Discussion questions

Neuron

Depolarize vs. hyperpolarize

Cell body

Graded potential

Dendrite vs. axon

Action potential

Glial cells

Threshold potential

Myelin sheath

Refractory period

Peripheral nervous system

Node of Ranvier

Sensory vs. motor neurons

Synapse

Somatic nervous system

Neurotransmitter

Autonomic nervous system

EPSP vs. IPSP

Voluntary vs. involuntary

Acetlycholine

Reflex

Epinephrine and norepinephrine

Sympathetic nervous system

Dopamine and serotonin

Parasympathetic nervous system

Endorphins

Central nervous system

Temporal vs. spatial summation

Spinal cord and brain

Fibers, myofibrils

Hindbrain

Sarcomeres

Medulla oblongata, pons, cerebellum

Thin and thick filaments

Midbrain

Actin and myosin

Forebrain

Tropomyosin/ troponin complex

Thalamus, hypothalamus, cerebrum

Sarcoplasmic reticulum

Membrane potential (voltage potential)

T-tubules

Resting potential

 

Knowing how nervous impulses are transmitted, how might we artificially inhibit or excite nerves (e.g. pain killers)?

 

When someone dies, why do muscles lock up (rigor mortis)(hint: think about the role of ATP in muscle contraction)?

 

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