Exam 11: Neural Tissue

Figure 11- 1 The Neuron Use Figure 11- 1 to answer the following questions: -The structures labeled "1" are dendrites. Their membranes contain numerous chemically gated ion channels.

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -The myelin sheath that covers many CNS axons is formed by

_______neurons form the afferent division of the PNS.

Which of the following is not a recognized structural classification for neurons?

The largest and most numerous neuroglia in the CNS are the

Figure 11- 1 The Neuron Use Figure 11- 1 to answer the following questions: -Which type of membrane channels are found at label "3"?

Voltage- gated sodium channels have both an activation gate and an) ______ gate.

Integral membrane proteins that connect electrical synapses are called

Figure 11- 2 The Nerve Action Potential Use Figure 11- 2 to answer the following questions: -Which area of the graph occurs when there is a sudden inrush of sodium ions?

Sensory neurons of the PNS are

A change in the conditions in the synaptic knob can influence the soma as a result of_________axoplasmic transport.

The neurilemma of axons in the peripheral nervous system is formed by

In an)________ synapse, current flows directly between cells

If the chemically gated sodium channels in the postsynaptic membrane were completely blocked,

____________ monitor the digestive, respiratory, cardiovascular, urinary, and reproductive systems.

___________carry motor information to peripheral effectors

The function of the astrocytes in the CNS includes which of the following?

Most neurons lack ________and so are permanently blocked from undergoing cell division.

The all- or- none principle states that

When cholinergic receptors are stimulated,