Actin is attached to which structure in smooth muscle?

Which of the following startling forces favors reabsorption of fluid into the capillary? (choose all that apply)

Which band or line in the sarcomere only contains actin?

Which of the following occurs when the neurotransmitter at the neuromuscular junction binds to it receptor?

Which of the following would be a physiological effect of a drug which specifically blocks alpha1 adrenergic receptors?

Which of the following will cause smooth muscle relaxation? (choose all that apply)

Neurotransmitter is released from which neuron anatomical structure?

Which of the following is closest to the normal resting membrane potential of a typical neuron?

Activation of which of the following ion channels causes prolonged depolarization and contraction in cardiac muscle cells?

In which vessel is the blood flow velocity the greatest?

Which vessel listed below only contains a tunica intima?

Which division of the nervous system contains the brain and spinal cord?

Calcium binds to which of the following proteins during skeletal muscle contraction?

Myelin is most often associated with which neuron anatomical structure?

Which of the following is true of the parasympathetic nervous system?

Which of the following is true of an inhibitory post-synaptic potential (IPSP) (choose all that apply)?

Which neurotransmitter is released at the somatic neuromuscular junction?

At point 3 in the diagram below, which of the following most closely describes the state of the voltage-gated sodium channels?

ATP binds to which sarcomere protein in skeletal muscle?

The sympathetic nervous system is most specifically considered part of which of the following nervous system divisions?

Ionotropic receptors require g-proteins.

Separation of cerebral spinal fluid in the ventricles of the brain from the neurons is achieved by the action of which of the following neural support cells

Which receptor class is found on the cell bodies of postganglionic sympathetic neuron dendrites?

Which of the following is true of the sympathetic division of the autonomic nervous system?

Decreased extracellular potassium concentration will have which of the following effects on the resting membrane potential of a neuron?

Which of the following is a defining characteristic for medium veins?

Which neural support cell produces myelin in the peripheral nervous system?

The passive diffusion of which of the following ion is responsible for generating the resting membrane potential of a neuron?

Which structure is found at the intersection of cardiac muscle cell branches?

Increased activation of the membrane sodium-calcium exchanger in cardiac and smooth muscle will cause which of the following?

Which of the following physiological effect will occur when the sympathetic nervous system is more active that the parasympathetic nervous system?

Which of the following will occur as part of the homeostatic response to a person experiencing hypotension (low blood pressure) due to a large laceration (cut) on their arm?

Which of the following most closely defines venous return?

Which of the following ion channel changes will generate an excitatory local potential change?

Which of the following most closely describes a piece of neuron membrane in the relative refractory period?

Which protein needs to be phosphorylated in smooth muscle for contraction to occur?

Which of the following would be an effective treatment for a patient with a adrenal tumor in the medulla which leads to increased activity of chromaffin cells? (choose all that apply)

When a presynaptic neuron is stimulated to have an action potential three times in a row, the local potential generated in the postsynaptic neuron does not reach threshold.  If the same presynaptic neuron is stimulated to have an action potential 5 times in a row the threshold potential is reached in the postsynaptic cell,  Which of the following neural phenomenon is described in the above scenario?

Which ion is most essential for the process of neurotransmitter vesicle docking and fusion with the pre-synaptic terminal membrane?

Which of the following protein senses the depolarization of the t-tubule to allow of calcium release in skeletal muscle?

Increasing sympathetic simulation in the body will decrease venous return.

How will a decrease in the concentration of plasma proteins (albumins) alter the net filtration pressure across a capillary?

Which of the following ion channel is open at number 4 in diagram below?