UNIT 3 NOTES
UNIT 3 NOTES BIOL 103 - 07
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BIOL 103 - 07
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This page Bundle was uploaded by Kasandra Strunk on Tuesday December 1, 2015. The Bundle belongs to BIOL 103 - 07 at University of Indianapolis taught by Nelson H. Kraus in Fall 2015. Since its upload, it has received 30 views. For similar materials see Principles of Human Anatomy in Biology at University of Indianapolis.
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Date Created: 12/01/15
Brain and Cranial Nerves 1 Brain Organization amp Development a Overview of Brain Anatomy i 4 regions of brain 1 cerebellum 2 brainstem 3 cerebrum 4 diencephalon ii cerebellum is divided into halve and THEN into lobes iii skull volume limits brain size b Vocab i Gyri folds in brain tissue Sulci shallow depressions between folds valleys iii Fissures deeper grooves iv Rostal anterior toward nose v Caudal posterior toward tail c Gray and White Mater Distribution color from motor neurons and interneuron cell bodies i ii color from myelin on abundant myelinated axons 2 Protection and Support of Brain a Cranial Meninges ii Cranial meninges three connective tissue layers that separate and support soft tissue bones and blood vessels 1 Pia mater areolar connective tissue adheres to brain 2 Arachnoid mater 3 Dura mater strongest made of dense irregular connective tissue b Brain Ventricles i Ventricles cavities or expansions from neural canal FLOW OF CSF 1 Lateral ventricle 2 Third ventricle 3 Cerebral aqueduct 4 Fourth ventricle 3 Cerebrum a Longitudinal ssures separate the halves b Corpus caosum main communication between halves c Functional areas i Somatosensory ii Primary visual cortex iii Primary auditory cortex iv Primary olfactory i Choroid plexus where CSF is formed ii Ependymal cells layer of glial cells that make up choroid plexus 4 Brain Stem a Midbrain b Pons c Medulla oblongata 5 Cranial Nerves CRANIAL NERVES Study Guide Name Type Cranial Passage I Olfactory S Cribriform Plate II Optic S Optic Canal III Oculomotor M Superior Orbital Fissure IV Trochlear M Superior Orbital Fissure Target Olfactory cortex Visual cortex 79 eye muscles Sup Obligue eye muscle ActionFunction Smell Vision Eye movement Eye movement Unique bipolar neurons bipolar neurons Clinical Test Smelling Snelling chart Follow the finger Follow the finger Opthalsup Orbital fissure Skin of the face Sensation from the skin Check sensation of V Trigeminal B Maxforamen rotundum and muscles of of the face LARGEST CN facial skin Mandibforamen ovale mastication Muscles of mastication Chewing VI Abducens M Superior Orbital Fissure Lat39 eye Eye movement Follow the finger Muscles of facial Fascial expression VII Facial B Stylomastoid foramen expression Make faces 0 Taste Taste buds Auditory cortex Contains bi olar Auditory test Renne VIII VestibularCochlear 8 Internal Auditory Canal Sensory cortex Hearing and Balance p and Weber Tests neurons Cerebellum Balance No eyes Taste buds Swallowing Pharyngeal Taste Dr39 k39 9 IX GIOSSOpharyngeal B JUgUIar Foramen muscles Muscles Mastication Gag Reflex TaSt39pg Chewnng of mastication wrth Vagus Ventral cavit Visceral sensation Uvular deviation X Vagus B Jugular Foramen y Parasympathetic Longest CN vrscera Gag reflex Impulses Muscles of head Only CN with Shoulder Shrug XI Spinal Accessory M Jugular Foramen Head neck movement origin in the Head turn against and neck cervrcal SC hand resrstance Muscles of the Stick out tongue XII Hypoglossal M Hypoglossal canal tongue Tongue movement Push tongue against cheek 6 Nervous System Chart ENS Cranial nerves and spinal nerves Sensory afferent division HR Motorietferent division 9 Somatic sensory General Touch pain pressure vibration temperature and proprioception in skin body wall and limbs Sgecial Hearing equilibrium vision 1lul39ij sceral sensory General Stretch pain temperature chemical changes and irritation in viscera nausea and hunger S ecial Taste smell Somatic motor General Motor innervation of all skeletal muscles Visceral motor General Motor innervation of smooth muscle cardiac muscle and glands equivalent to auto nomic nervous system ANS a a Parasympa thetiea iWii division Sympathetic Spinal Cord and Nerves 1 Spinal Cord a Parts i ii iii iv V b Vocab i ii iii iv v vi vii viii 39 Anterior root contains motor neurons XI xii xiii xiv xv Cervical Thoracic Lumbar Sacral Coccygeal Cauda equina nerve roots Filum terminale strand of pia mater anchors conus medullaris to coccyx Spinal cord meninges protects spinal cord continuation of cranial meninges Denticulate ligaments lateral triangular from pia to dura mater Epidural space between dura and inner walls of vertebrae Lateral horns T1L2 Funiculus white matter on each side of cord Tracts axons within matter Posterior root ganglion cell bodies located Nerve plexus network of anterior rami of spinal nerves 1 Cervical 2 Brachial 3 Lumbar 4 Sacral Phrenic innervates diaphragm Brachial plexi innervate upper limbs Lumbar plexi innervate lower limbs Sciatic nerve largest and longest nerve 2 KNOW THE BRACHIAL PLEXUS FO RMATI N F BRAC r T f mi l g IAL PLEXUS a R 39quot Tr39umlkg 39 D iv isinna M V 39 Card 5 quotquot Neweg Chapter 16 Eyes and Ears Anatomy of the Eye Sahara Posterior chamber I Charoitl 39 Retina Anlleriar chamber 7 Iris Pupil 39Fovaa centralis comm 139 disc area blind spot Lens a Sluspansory ligament quot if Optic ewe Schlemm s canal Carnial nerve II Limbus Central retinal blood vessels 7 Biliary muscle 7 Ciliary body W Biliary proaass r 7 Hyalaid canal Ora serrata Movement of Lacrimal Fluid aka Tears 1 Lacrimal gland 2 Washes over eye and into lacrimal caruncle 3 Drains into lacrimal puncta 4 Drains into nasolacrimal duct Cristae within ampullae Semicircular ducts Anterior Vestibulocochlear nerve Lateral Posterior Vestibular duct 7 r Cochlear duct Tympanic duct Bony labyrinth Cochlea Membranous labyrinth StFUiCMFSS of the Middle Ear Entranaa rm minimum Indium In ma ei ympa le illiwn L 4 w I a E H r J r g a Emmimu ar 39 v t A ElmHIE Vgs zhguln G hl sr lial i Tmpmm W 39 77 am 39 quot hlii rriim mm i l mm In It i I V I P H I w r Fh wn mym m minmil a ilud39l m mm WWW quot a iii min Figure 11 611
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