Chapter 14: The Brain and Cranial Nerves Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora.

Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora. Multiple Choice & Essays 1. The brain and spinal cord develop from arranged in a tubular structure called the neural tube. a. Mesoderm b. Endoderm c. Ectoderm d. Prosencephalon e. Rhombencephalon Ans: C Difficulty: medium Feedback: 14.1 2. This gives rise to the midbrain and aqueduct of the midbrain. a. Prosencephalon b. Mesencephalon c. Rhombencephalon d. Pia mater e. Arachnoid mater Ans: B Difficulty: medium Feedback: 14.1 3. Which is NOT considered a major part of the brain? a. Brain stem b. Cerebellum c. Cauda equina d. Diencephalon e. Cerebrum Ans: C Difficulty: easy Feedback: 14.1 4. This consists of the medulla oblongata, pons and midbrain. a. Brain stem b. Cerebrum c. Cerebellum d. Diencephalon e. Dura mater Ans: A Difficulty: easy Feedback: 14.1 5. This consists of the thalamus, hypothalamus and epithalamus. a. Cerebellum b. Brain stem c. Cerebrum d. Diencephalon e. Dura mater Ans: D Difficulty: easy Feedback: 14.1 6. Which of the following has two layers? a. Spinal dura mater b. Cranial dura mater c. Spinal arachnoid mater d. Cranial arachnoid mater e. All of the above Ans: B Difficulty: easy Feedback: 14.1 7. This separates the two hemispheres of the cerebrum. a. Flax cerebri b. Falx cerebelli c. Tentorium cerebelli d. Tentorium cerebri e. None of the above Ans: A Difficulty: easy Feedback: 14.1 8. The adult brain represents only of the total body weight. a. 2% b. 5% c. 10% d. 12% e. 20% Ans: A Difficulty: easy Feedback: 14.1 9. This protects the brain by preventing passage of harmful substances and pathogens. a. Dura mater b. Arachnoid mater c. Cerebrospinal fluid d. Blood brain barrier e. All of the above Ans: D Difficulty: easy Feedback: 14.1 10. Cerebrospinal fluid carries chemicals from the to neurons. a. Interstitial fluid b. Bile c. Intracellular fluid d. Arachnoid space e. Blood Ans: E Difficulty: easy Feedback: 14.2 11. Which is located in each hemisphere of the cerebrum? a. Lateral ventricle b. Septum pellucidum c. Fourth ventricle d. Third ventricle e. Corpus callosum Ans: A Difficulty: medium Feedback: 14.2 12. This is a narrow cavity along the midline superior to the hypothalamus and between the right and left halves of the thalamus. a. Lateral ventricle b. Septum pellucidum c. Third ventricle d. Fourth ventricle e. Fifth ventricle Ans: C Difficulty: medium Feedback: 14.2