Anatomy Physiology Health Careers Academy Nanette Morris RN

Anatomy & Physiology Health Careers Academy Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM Nanette Morris, RN, BA, NBCT

Muscular System Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM THE COMPOSITION ¨ MUSCLES ¨ TENDONS & FASCIA Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM PROPERTIES ¨ Excitability: the ability to respond to a stimulus ¨ Contractibility: the ability to contract ¨ Extensibility: the ability to stretch ¨ Elasticity: the ability to return to original shape Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM TYPES ¨ INVOLUNTARY: – CARDIAC: the heart – VISCERAL OR SMOOTH: internal organs ¨ VOLUNTARY: – SKELETAL: the bones Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM THE MOVEMENTS ¨ ADDUCTION: towards ¨ ABDUCTION: away from ¨ FLEXION: decrease the angle ¨ EXTENSION: increase the angle ¨ ROTATION: circular Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM THE TONE ¨ MUSCLE TONE: normal, steady partial contraction ¨ ATROPHY (shrinkage) ¨ CONTRACTURES (severe tightening of flexors) occur from lack of use Nanette Morris, RN, BA, NBCT

THE MUSCULAR SYSTEM THE DISEASES ¨ Muscular Dystrophy: chronic & progressive muscle atrophy ¨ Myasthenia Gravis: interrupted nerve impulses ¨ Spasms: involuntary cramping ¨ Strain: overstretching Nanette Morris, RN, BA, NBCT

Muscular System Video http: //health. howstuffworks. com/adam-200005. htm Nanette Morris, RN, BA, NBCT

Summary The end, my friend Nanette Morris, RN, BA, NBCT

THE CIRCULATORY SYSTEM AKA THE CARDIOVASCULAR SYSTEM Nanette Morris, RN, BA, NBCT

The Circulatory System Nanette Morris, RN, BA, NBCT

THE CIRCULATORY SYSTEM THE COMPOSITION ¨ THE HEART ¨ THE BLOOD VESSELS ¨ THE BLOOD Nanette Morris, RN, BA, NBCT

THE CIRCULATORY SYSTEM THE FUNCTION ¨ TRANSPORTS O 2 & NUTRIENTS TO THE BODY CELLS ¨ TRANSPORTS CO 2 & WASTES AWAY FROM BODY CELLS Nanette Morris, RN, BA, NBCT

The Circulatory System ¨ Diseases: Anemia: Low RBC count Arteriosclerosis: hardening of arterial walls Hypertension: high blood pressure Leukemia: malignant disease of bone marrow or lymph tissue Nanette Morris, RN, BA, NBCT

Cardiovascular Videos The Heart. webloc Nutrient Exchange. webloc Blood Flow. webloc Cardiovascular System. webloc Red Blood Cell Productio#10 C 19 F Nanette Morris, RN, BA, NBCT

Summary, The end, my friend Nanette Morris, RN, BA, NBCT