A&P Chap 11

Digestion of food is regulated by the Select one: a. sensory division. b. sympathetic division of the ANS. c. parasympathetic division of the ANS. d. somatic nervous system. e. None of these choices are correct.

C

If you cut bundles of axons and their myelin sheaths in the PNS, you cut Select one: a. ganglia. b. nuclei. c. nerves. d. gray matter. e. nerve tracts.

C

The peripheral nervous system includes the Select one: a. brain. b. spinal cord. c. cranial nerves. d. blood-brain barrier. e. cerebellum.

C

A person who has seizures might have a deficit of which of the following? Select one: a. GABA b. dopamine c. glutamate d. serotonin e. histamine

A

Cell bodies of the peripheral nervous system are located in Select one: a. ganglia. b. Schwann cells. c. the motor division. d. the sensory division. e. nerves.

A

Groups of related nerve cell bodies located outside of the central nervous system are called _____. Select one: a. ganglia b. plexus c. tracts d. nerves

A

Synapses in which gap junctions allow ions to diffuse quickly from cell to cell are called ______ synapses. Select one: a. electrical b. chemical

A

For the resting membrane potential, increasing the sodium ion concentration in the ECF results in Select one: a. hyperpolarization. b. depolarization. c. hypopolarization. d. little change in membrane potential. e. There is not enough information to determine the results.

B

Low levels of ___ can have dire consequences on the functioning of neurons because of its role in membrane repolarization. Select one: a. sodium ions b. potassium ions c. chloride ions d. hydrogen ions

B

Neurons in the skin that are responsible for detecting pain are Select one: a. apolar. b. pseudo-unipolar. c. bipolar. d. multipolar.

B

The central nervous system includes the Select one: a. ganglia. b. spinal cord. c. spinal nerves. d. cranial nerves. e. sensory receptors.

B

Which of the following is NOT a neuroglia of the CNS? Select one: a. ependymal cells b. satellite cells c. oligodendrocytes d. astrocytes

B

Which of the following situations occurs in electrically excitable cells? Select one: a. When Na+ ion channels open, K+ ion channels close. b. The sodium-potassium exchange pump moves sodium into the cell. c. Depolarization causes voltage-gated sodium ion channels to open. d. Ligand-gated sodium ion channels are opened by high extracellular calcium levels. e. Proteins tend to diffuse out of the cell.

C

Damage to a postsynaptic membrane would Select one: a. increase neurotransmitter release. b. decrease the release of neurotransmitter. c. increase neurotransmitter production. d. interfere with the ability to respond to neurotransmitter. e. destroy vesicles containing neurotransmitter.

D

Nissl bodies are Select one: a. part of a dendrite. b. also called gemmules. c. lipid droplets. d. areas of rough endoplasmic reticulum. e. part of the Golgi apparatus.

D

Which of the following is mismatched? Select one: a. central nervous system - brain b. autonomic nervous system - sympathetic and parasympathetic divisions c. peripheral nervous system - spinal nerves d. somatic nervous system - sensory division of PNS e. peripheral nervous system - sensory and motor divisions

D

Hydrocephaly is a condition whereby cerebrospinal fluid accumulates around the brain. What supportive cells continue CSF production despite it backing up in the subarachnoid space? Select one: a. astrocytes b. microglial cells c. oligodendrocytes d. macrophages e. ependymal cells

E