Kin 325 1st Edition Lecture 7 Outline of Last Lecture I. Last few concepts of the knee (short lecture)Outline of Current Lecture I. Intro to Nervous SystemII. Nerves-Leg Nerves-Thigh Nerves-Lumbar Plexus-Sacral Plexus-Functions of Main NervesIII. Arteries-Lower Extremity ArteriesCurrent LectureThe Nervous SystemSplit into two main parts:-The Central Nervous System-Brain -Spinal Cord-The Peripheral Nervous System -Somatic -Autonomic (Sympathetic and Parasympathetic) Leg Nerves -Anterior: Deep peroneal-Lateral: Superficial PeronealThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-Posterior: Tibial for deep and superficial muscles Thigh Nerves-Gluteal: Superior gluteal, Inferior gluteal, 1st & 2nd Sacral, Sacral plexus-Anterior: Femoral, Lumbar Plexus (psoas) -Medial: Obturator, Tibial Part of sciatic (hamstring) -Posterior: Tibial part of sciatic, Common peroneal of sciatic (short head of biceps femoris) Plexus: Network of peripheral nerves; innervates a specific regionCervical (neck)Brachial (arm)Lumbosacral (lower extremities) Lumbar Plexus Nerves: *think* I (twice) Get Laid On Fridays-Iliohypogastric: T12-L1 Innervates Transverse abdominis, Abdominal internal oblique -Ilioinguinal: L1 Innervates Transverse abdominis, Abdominal internal oblique -Genitofemoral: L1-L2-Lateral Femoral Cutaneous: L2-L3-Obturator: L2-L4 Innervates Adductor brevis and longus, Gracilis, Pectineus, Adductor magnus -Femoral: L2-L4 Innervates Iliopsoas, Pectineus, Sartorius, Quadriceps femoris Sacral Plexus NervesOrder from Superior to Inferior-Superior Gluteal: L4-S1 Innervates Gluteus medius and minimus, Tensor fascial latae-Inferior Gluteal: L5-S2 Innervates Gluteus maximus-Sciatic: L4-S3 Innervates Semitendinosus, Semimembranosus, Biceps femoris, Adductor magnus-Tibial: L4-S3 Innervates Plantaris, Popliteus, Tibalis posterior, Flexor digitorum longus and hallucis longus -Common Fibular: L4-S2-Posterior Femoral Cutaneous: S1-S3 Innervates Muscles of pelvic floor (Levator ani, Superficial and Deep transverse perineal, Bulbospongiosus, Ischiocavnernosus, Sphincter anus, Urethral sphincter) -Pudendal: S2-S4 Innervates Muscles of pelvic floor (Levator ani, Superficial and Deep transverse perineal, Bulbospongiosus, Ischiocavnernosus, Sphincter anus, Urethral sphincter) -Coccygeal Plexus: S5-Co1 Innervates Coccygeus-Coccygeal: Innervates Coccygeus Functions of Main NervesObturator: hip adductionFemoral: knee extensionPelvic: hip adduction, flexion, and extensionSciatic: knee flexion (divides into peroneal and tibial nerves just above the knee)Peroneal: foot dorsiflexion, eversion, and extensionTibial: plantar flexion, toe flexion, foot inversion Lower Extremity ArteriesSuperior to inferior External IliacDeep FemoralPoplitealTibial