FREE AND STUDY GAMES ABOUT CHAP 10A P EXAM

PDF Download FREE AND STUDY GAMES ABOUT CHAP 10A& P EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -70 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which type of neuroglia produces the myelin in the peripheral nervous system?

Answer:

Schwann cells

Question 2: What does it mean that neurons are excitable?

Answer:

Local potential changes occur in the membrane due to changes in the surrounding area.

Question 3: The gaps between segments of myelin along an axon are called

Answer:

nodes of ranvier

Question 4: Sensory neurons conduct impulses in which direction?

Answer:

from the peripheral body parts to the brain and spinal cord

Question 5: Once synthesized, neurotransmitters are stored in membrane-bound structures called____

Answer:

vesicles

Question 6: Name the specialized endings found at the end of an axon.

Answer:

axon terminals Question 7: Which is the correct order for transmission of a nerve impulse from a receptor to an effector?

Answer:

Sensory receptor?Sensory neuron?Interneuron?Motor neuron?Muscle cell Question 8: Since neurons can respond to changes in their surroundings, they are described as

Answer:

excitable Question 9: On the neuron cell body, the region called the axon hillock is the origin of what structure?

Answer:

axon

Question 10: Identify three functions of neuroglial cells.

Answer:

produce growth factors for neurons, guide neurons into position during embryogenesis, Remove excess ions and neurotransmitters from areas surrounding neurons.Question 11: The water molecule shows ______ because it has negatively-charged regions in the vicinity of the oxygen atom and positively-charged regions near the hydrogen atoms.

Answer:

polarity

Question 12: Within the brain and spinal cord, myelinated axons provide the color for________ matter

Answer:

white Question 13: A charge inside of a cell, indicating that there is the possibility that charges will move across the cell membrane, is called ______.

Answer:

membrane potential Question 14: The cells that are responsible for wrapping around axons, creating myelin sheaths in the PNS, are ______.

Answer:

Schwann cells Question 15: As an action potential occurs in one area of the axon, it causes nearby ______ channels to open, initiating another action potential in the neighboring membrane.

Answer:

voltage-gated

Question 16: The neurotransmitter ______ stimulates muscle contractions.

Answer:

acetylcholine

Question 17: What will trigger the opening of chemically gated ion channels?

Answer:

binding of neurotransmitter molecules Question 18: Astrocytes, oligodendrocytes, microglia, and ependymal cells are types of ______ found in the ______.

Answer:

neuroglia; CNS

Question 19: Some neuroglial cells produce the components of the electrical insulator called

______.

Answer:

myelin

Question 20: A junction between two neurons is called a ______.

Answer:

synapse Question 21: The two main divisions of the nervous system are the____ nervous system & _____ nervous system

Answer:

central & peripheral nervous system

Question 22: Which organs make up the peripheral nervous system?

Answer:

Cranial nerves, Spinal nerves Question 23: Neurons include cell bodies and cell processes called______ and _____

Answer:

dendrites & axon Question 24: What is synthesized in the cytoplasm of the synaptic knob and stored in synaptic vesicles?

Answer:

neurotransmitters Question 25: The action of a ______depends on the receptors at a particular synapse.

Answer:

neurotransmitters Question 26: When depolarization occurs, the resting membrane potential becomes ______ negative and ______ 0mV.

Answer:

less; closer to