SOFT TISSUE ANATOMY Head and Face

Bellwork Complete only the B portion of the BLT chart, writing what you know about head and facial soft tissue. Then put BLT chart aside until the end of the lesson.

PROPERTY OF PIMA COUNTY JTED, 2010 Write-Pair-Share Write a list of all the anatomical structures of the head and face that you can recall from previous lessons on paper Share with a partner Be ready to share with the class 3. Think-pair-share teacher presents a question teacher gives wait time for student to form answer teacher instructs students to share their answer with a partner teacher calls on non-volunteers to share with the class PROPERTY OF PIMA COUNTY JTED, 2010

soft tissue anatomy and related functions of the head and face Objective Recognize relevant soft tissue anatomy and related functions of the head and face

Brain Covering Scalp: skin covering cranium Blood vessels Muscles Hair Scalp decreases force of impact on head! http://www.disaboom.com/error?aspxerrorpath=/traumatic-brain-injury-tbi-information/overview

Brain Covering Between the Dura Mater and the Cranium is the Cerebrospinal Fluid CS fluid protects brain from impacts Bathes brain and spinal cord in nutrient rich environment May leak from ears/nose with a skull fracture http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/8/82/Brain_layers.jpg&imgrefurl=http://en.wikipedia.org/wiki/File:Brain_layers.jpg&usg=__-c7TxpDaws5fvd9majJvXXYbLyQ=&h=294&w=382&sz=29&hl=en&start=36&zoom=1&tbnid=6UWta0K4z8HIVM:&tbnh=145&tbnw=188&ei=l8gATqDBHJCCsQP66Y2VDQ&prev=/search%3Fq%3Dbrain%2Blayers%26hl%3Den%26biw%3D1259%26bih%3D625%26gbv%3D2%26tbm%3Disch&itbs=1&iact=hc&vpx=134&vpy=246&dur=468&hovh=197&hovw=256&tx=119&ty=145&page=3&ndsp=18&ved=1t:429,r:0,s:36&biw=1259&bih=625

Brain Divided into lobes responsible for specific functions Frontal- muscle/eye movement, emotion Parietal- sensation Occipital- vision Temporal- hearing, speech Cerebellum- equilibrium, muscle actions, reflexes Brainstem- basic living functions http://www.willamette.edu/~gorr/classes/cs449/brain.html

Cranial Nerves I Olfactory Smell II Optic Vision III Occulo-motor # Nerve Function How to test I Olfactory Smell Identify a smell II Optic Vision Visual fields (peripheral vision) III Occulo-motor Eye/eyelid mvmt, pupil constriction, focusing Up/Down/Medial Gaze Reaction to light (PEARL) IV Trochlear Inferior and lateral eye mvmt V Trigeminal Facial sensation, mastication Clench Teeth VI Abducens Lateral eye mvmt VII Facial Motor facial expressions, taste, tear/salivary/nasal sublingual/submaxillary gland control Smile/scrunch up face

Cranial Nerves VIII Vestibulocochlear Hearing and equilibrium IX # Nerve Function How to test? VIII Vestibulocochlear Hearing and equilibrium Hearing/balance IX Glossopharyngeal Swallowing, gag reflex, tongue/ear sensation, salivation Swallow, X Vagus Swallowing, speech, lung/heart/G-I function Tongue out say “AH” XI Accessory Swallowing, sternocleidomastoid muscle function Shoulder shrug XII Hypoglossal Tongue mvmt., speech, swallowing Stick tongue out/mvmt side to side

Cranial Nerve Assessment With a partner, take turns practicing the assessment of the cranial nerves. Come up with a method to help you remember the nerves. Be willing to share with class.

Finish your “L” and “T” columns on your BLT sheet Closure Finish your “L” and “T” columns on your BLT sheet