Upload
rohancool17
View
1.420
Download
0
Tags:
Embed Size (px)
Citation preview
Cerebral CirculationCerebral Circulation
Srilata 3Udita Goyal 14Bhavesh Lokhande 25Rohan Rane 36Vivek Varade 47
Anatomy of BrainAnatomy of Brain
Frontal LobeFrontal Lobe
Blood supply - ACA and MCA
Major functions:◦ personality, behaviour◦ judgement/problem solving◦ micturation◦ expressive speech – articulation and
speech production ◦ concentration, reasoning
Parietal LobeParietal Lobe
Blood supply – ACA, MCA and PCA
Major functions:◦ sensory function◦ body part awareness◦ visual spatial information
Temporal LobeTemporal Lobe
Blood supply - MCA and PCA
Major Functions:◦ understanding speech -Wernickes◦ visual, olfactory and auditory perception◦ learning, memory, emotional affect
Occipital LobeOccipital Lobe
Blood supply - MCA,PCA
Major Functions:◦ primary visual area◦ some visual reflexes◦ involuntary smooth eye movements◦ recognition & identification of objects
CerebellumCerebellum
Blood supply -Vertebrobasilar
Major Functions:
◦ control of fine motor movement
◦ coordinates muscle groups
◦ maintains balance, equilibrium
Brain StemBrain Stem
Blood supply - PCA & Vertebrobasilar
Major divisions - midbrain, pons, medulla
Serves as a pathway
Reticular Activating System
Circulatory system in Circulatory system in BrainBrain The brain receives its blood supply from the
heart by way of the aortic arch
Systems :-
D.Carotid Arterial System Vertebrobasilar SystemS Collateral blood supply of the brain Venous drainage
A. A. Carotid Arterial System Carotid Arterial System
1. Common Carotid artery (CCA)
2. External Carotid artery (ECA)
3. Internal Carotid artery (ICA)
B. B. Vertebrobasilar SystemVertebrobasilar System
1. Vertebral artery
2. Basilar artery
3. Posterior cerebral artery (PCA)
C. C. Collateral blood supply of the Collateral blood supply of the brainbrain
2.Extra cranial connections
4. Intracranial connections
D. D. Venous drainageVenous drainage
Physiology of the cerebral Physiology of the cerebral circulation circulation
Blood Brain Barrier
Regulation of cerebral blood flow◦ Autoregulation◦ Effect of Gases and Ions
Factors controlling cerebral Factors controlling cerebral circulationcirculation
Intracranial pressure Viscosity of blood Diameter of cerebral blood vessels CO2 tension
O2 lack/excess Adrenalin/Noradrenalin Drugs : Papaverine, Ethyl alcohol,
Caffeine
DiseasesDiseases
Stroke
Transient Ischemic Attack
Cerebral Arteriosclerosis
Cerebral aneurysm
Cerebral arteriovenous malformation
ReferencesReferences� Human Physiology by Dr.
C.C.Chatterjee Waugh A,Granta A. Anatomy and
Physiology in health and illness.10th edition
a Principles of Anatomy and Physiology by Gerard J. Tortora and Bryan H. Derrickson
a Guyton AC,Hall JE. Text book of medical physology.11th edition, Philadelphia.