NA- Chapter 2.2 Review PDF

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Dr. Anna Marie Taylor NSC4366.001-Spring 2020 Neuroanatomy Reading Guide for Chapter 2.2 of Essential Clinical Neuroanatomy by Thomas H. Champney As you read through your Neuroanatomy textbook, fill in this outline I have provided to guide you as you prepare for lecture. This is not an assignment and does not need to be turned in. The goal is not to memorize all the information below before lecture, but to become familiar with it before the readiness quizzes. Note that this outline is not a comprehensive study guide for the exams, but instead is intended to ensure that each student is prepared to learn from lecture in order to apply functional Neuroanatomy on exams and ultimately in your careers. Blood Supply of the Brain (Chapter 2.2 pg. 24-33) PART I – Arterial Supply Fill in the blanks to trace the major blood supply of the brain: The ______ is especially vulnerable to disruptions in its blood supply, because of its high and continuous requirements for _____ and _____. Therefore, the brain has two main arterial sources: _________ and __________, which connect through the __________. 1. The _______ (anterior) blood supply of the brain branches off from the ____ carotid artery, which arises from the _______ artery on the right and from the on the left. The common carotid artery divides into the ____ carotid artery that supplies the ____and _____, and the _____ carotid artery that enters the skull through the __________. The internal carotid forms a “S” as it passes through the ________, then branches off into the: a. _______ artery is the first branch, which passes through the ____ into the orbit. b. ____________ artery (ACA) supplies the _____ portion of the _____ cerebral hemisphere along the midline. The right and left internal carotid supply are joined together at the ______________branch. c. _____________artery (MCA) supplies a large portion of the ________, ______, and _______ lobes of the _________cerebral hemisphere. Two important branches of the MCA are the: 1. ___________ artery which supplies the basal ganglia. 2. Posterior communicating artery, which connects with the ____________ system. 2. The _______(posterior) blood supply of the brain branches off from the __________ artery and passes through the ________ of the upper ____ vertebrae before entering the skull through the . The two vertebral arteries then branch off into the: a. ____________________________(PICA) which supplies the __________________. b. Anterior spinal artery, which will supplies the __________________. c. Then the two ____________ arteries join together to form one _________ artery, which ascends the _______ surface of the brain stem branches into: 1. The ________________ (AICA), the ______ arteries, and the ___________ artery. 2. _______________(SCA) supplying the _________________. d. The basilar artery terminates at the ______________ (PCA), which supplies the ________ lobe of the _______cerebral hemisphere and is connected to the ______ system through the ____________ artery. 3. Cerebral arterial circle (__________) is a ____________________________________, which allows for continues blood supply in the brain if one vessel becomes ___________: a. It encircles the __________gland, _________________, and ______________. b. List the arteries included in this circle clockwise:

PART II – Venous drainage Fill in the blanks:

Dr. Anna Marie Taylor NSC4366.001-Spring 2020 Neuroanatomy 1. The __________ remove waste products and deoxygenated blood from the brain and ensure that the _____of blood in the brain is not excessive, placing undue __________on the brain and the brain stem. Small ____ drain blood from the brain into the endothelium-lined _________ that are found within the ________ of the meninges. a. ___________ sinus is located within the falx cerebri. b. ____________sinus is in the inferior border of the falx cerebri. c. _________ sinus begins where the inferior sagittal sinus joins the__________ vein (of Galen). d. The _________ of the sinuses is located where two dura mater folds meet (the __________and the tentorium_________). At this confluence ____ major venous sinuses join together, which is where: ______________ and ___________ drain into the left and right _____________. e. From the transverse sinuses, drainage flows to the _____________sinus, which is names because of the ____________ course it takes before joining the ________ vein. f. The ____________ sinus is the major anterior collection site for venous blood, which communicate with the posterior venous system by the _________ sinuses/ g. While the primary drainage of the venous sinuses is through the ________ , an alternative drainage through the _________ and the _______ exist in case of blockage or overflow....