Blog

Compare the values below. Which is greater, or are the two values equal? A. Number of neurons a signal from an olfactory receptor cell travels along to reach the olfactory cortex.B. Number of neurons a signal from a gustatory cell travels along to reach the auditory cortex.

The image above represents an experimental setup where a motor neuron and a muscle cell it innervates are each fitted with a stimulating electrode. For each of the situations below, indicate whether the muscle cell would produce a normal twitch, an extra-long twitch, or no twitch.

Compare the values below. Which is greater, or are the two values equal? A. Number of neurons in the path between the CNS and the target in the sympathetic NSB. Number of neurons in the path between the CNS and the target in the parasympathetic NS

Skeletal Muscle Action Potential – Part 2 Take a look again at the graph of an action potential on the sarcolemma of a skeletal muscle cell (given below). Describe what is happening at a molecular level to generate the depolarization and repolarization phases. Make sure to include in your answer: which ions are moving, in what direction each ion is moving, and what kind of channel each ion is moving through.  

Coordinating skeletal muscle movements and maintaining equilibrium are two of several important functions of the…

One of the ways in which neurotransmitter is removed from the synaptic cleft is… 

Is the statement below True or False? Generation of an end plate potential requires activation of chemically-gated cation channels.

How is the length of a skeletal muscle cell related to the force it can generate?  

Compare the values below. Which is greater, or are the two values equal? A. Change in muscle length during an isometric contraction B. Change in muscle length during a concentric contraction

Skeletal Muscle Action Potential – Part 1 This image below is a graph of an action potential on the sarcolemma of a skeletal muscle cell. Match the letters (A, B, C, D, E, F, G, and H) on the image to the corresponding feature that they represent on the graph.