UNIT 2 Study Guide
UNIT 2 Study Guide BIOL 103 - 07
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BIOL 103 - 07
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This 8 page Study Guide was uploaded by Kasandra Strunk on Friday October 23, 2015. The Study Guide belongs to BIOL 103 - 07 at University of Indianapolis taught by Nelson H. Kraus in Fall 2015. Since its upload, it has received 42 views. For similar materials see Principles of Human Anatomy in Biology at University of Indianapolis.
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Date Created: 10/23/15
UNIT 2 STUDY GUIDE nes of HeaoL o Skullcranial vault facial bone mandible Cranial vault o Frontal 0 Temporal o Occipital o Parietal Upperjaw Maxilla Lowerjaw mandible Zygomatic bone cheek bone Bones of Orbit Orbit eye socket Contains eye 0 Roof of the orbit lesser wing of the sphenoid bone orbital part of the frontal bone 0 Floor of the orbit orbital process of palatine bone orbital surface of maxilla zygomatic bone 0 Lateral wall zygomatic process of frontal bone greater wing of sphenoid bone orbital surface of zygomatic bone 0 Medial wall frontal process of maxilla Iacrimal bone orbital plate of ethmoid bone Bones of Cervical vertebrae Made up of 7 bones 0 identify cervical vertebrae look for transverse foramen 0 Job supporting the head protecting the spinal cord providing mobility to neck 0 AtlasC1 allows us to nod our heads yes AxisC2 allows us to shake our heads no nes of Thoracg Vertebrae o 12 Thoracic vertebrae TlT12 Increase in size as you move inferiorly o No transverse foramen 0 Only vertebrae that support the ribs Convex Thoracic Curve 0 Larger than Cervical and smaller than Lumbar Bones of Lumbar Vertebrae o L1L5 o Vertebral body 0 Transverse process 0 Spinous Process 0 SuperiorInferior articular process 0 lntervertebral Discs Muscles of Face 1 Frontalis Muscle Raises eyebrows 2 Orbicularis Oris Close mouthkiss 3 Orbicularis Oculi Blink wink 4 Zygomaticus Major smile 5 Masseter Mastication Platysma Tenses the neck fright muscle Muscles of Mastication TemporalisClenching and unclenching the jaw Masseter Jaw clamping Medial PterygoidJaw closure and protrusion Lateral PterygoldJaw opening Muscles of Face 0 The face is made up of 0 Main muscles Temporalis Buccinator Masseter Orbicularis Oris Lateral Pterygold and Medial Pterygold The Masseter Temporalis LateralMedial Pterygold and the Buccinator are responsible for Mastication chewing Platysma only skeletal muscle that has minimal direct bony connchon Muscles of Back Muscles of the back can be divided into three layers 1 Super cial Layer Moves upper extremities a Intermediate Layer 1 Respiratory Muscles 2 Insert to Ribs b Deep Layer Moves trunk and back 5 super cial back muscles Trapeziusmoves the head and shoulder blade 0 Teres MinorLaterally rotates arm adducts arm and stabilizes the shoulder Teres MajorMedially rotates the arm adducts the arm extends the arm 0 lnfraspinatusLaterally Rotates arm Stabilizes shoulder o Latissimus DorsiAdducts the arm Medially rotates the arm Extends the arm Muscles of Chest Pectoralis Majg agonist of arm flexion adducts amp medially rotates Pectoralis Minor protract amp depress scapula Serratus posterior superior elevates ribs during forced inspiration Serratus posterior inferior depress during expiration Scalene muscles elevate l and 2 ribs during forced inspiration External intercostals elevate ribs during quiet and forced inspiration lternal intercostals depresses ribs during forced expiration Muscles of the Abdomen Rectus Abdominis quotsix packquot enables the tilt of pelvis and curvature of lower spine Linea Alba connective tissue that divides the rectus abdominis Transverse Abdominis compresses the ribs and viscera Internal Oblique rotates the spine increases pressure within abdomen and assists with breathing movements External Oblique allows you to bend sideways and rotate your torso How Muscles Are Nameol Muscle Action Speci c Body Regions Muscle Shape Muscle Size 0 Muscle HeadTendons of Origin 0 Muscle Attachments 0 Orientation of Fibers Bone Markings and Openings 0 Bone Markings Surface Features 0 Ridges spines bumps depressions canals pores slits cavities and articular surfaces 0 Articulating surfaces joints 0 Condyle Facet Head DepressionsOpenings stuff running through AVN o Projections Bone thickening o Condyle Facet Head Things That Were Honked At Boxers MuscleSerratus Anterior Tailor s MuscleSartorius Synergistic amp Antagonist Muscle Groups 0 Biceps Brachii o Brachialis o Brachoradialis Muscles of Mastication synergistic Arrector pili only special muscle that is made of visceral muscle Masseter 0 Origin zygomatic arch o Insertion ramus of mandible Function of Buccinator helps cheek from puf ng out when chewing Know the 5 super cial back muscles Three layers of back muscles What does the levator scapuli do elevates scapula 3 layers of back muscles allow the spine to move 0 example of FFF Pelvic Girdle 0 Left and right pelvic bone 0 Sacrum o Pubis symphysis Know body regions Muscles of Chest 0 Lats are antagonistic to pectoral major Deltoid is a common site for Intramuscular injections 0 Gluteus maximus is another common site 4 muscles make up abdomen Linea Alba amp Transverse Intersection Inguinal ligament Know how muscles are named and bone markings Sesamoid bone a bone completely contained in a tendon Fascia connective tissue band 0 Tensor fascia lata lateral of hip attaches to iliotibal tract Hamstrings Identify free standing vertebrae Tendenous intersections Subclavicular artery Surgical neck most frequent site for fractures Radial tuberosity 0 Where biceps brachii brachoradialis brachalis MP PIP Dleoints Sternoclavicularjoint only bone to bone connection to appendicular and axial skeleton Ligamentum teres secures head of femur to acetabulum Subpubic angle FFF Three places where brocartilage is Recognize brachioradialis Lateral compartment extends forearm 0 Lateral epicondyle of radius Medial compartment exes forearm o Medial epicondyle of radius Thenar thumb movement Shoulder very mobile due to two connections FFF Shoulder separation damage to AC joint Coronoid process inserts on temporalis of the mandible Biceps brachii attaches to radial tuberosity o Sprainigament damage 0 Straininjury to muscle
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