Transcript Anatomy & Physiology

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 O2 & NUTRIENTS TO
THE BODY CELLS
 TRANSPORTS CO2 & 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#10C19F
Nanette Morris, RN, BA, NBCT
Summary, The end, my friend
Nanette Morris, RN, BA, NBCT