Blog

Which kind(s) of muscle utilize gap junctions? (select ALL that apply)

The ______ phase of a muscle twitch corresponds to removal of Ca2+ from the sarcoplasm. 

Which of these is NOT a factor that typically determines the strength of a graded contraction:

The major excitatory neurotransmitter of the CNS is:

Motivation and reward (or reinforcement) is mediated primarily by ___________ in the CNS and is the target of drugs of abuse such as heroin. 

Which part of a neuron generates and conducts electrical output (sending information to ‘downstream’ cell):

Which letter is indicating an axo-somatic synapse?

In Cross-bridge cycling (CBC), detachment of myosin from actin (i.e., disruption of a “cross-bridge”) coincides with: 

Which of the following neurotransmitters is NOT one of the Biogenic Amines:

The storage site of Ca2+ in a skeletal muscle fiber is: