WEST COAST EMT BLOCK 2 UPDATED STUDY GUIDE WITH 115
CORRECTLY ANSWERED VERIFIED QUESTIONS ALREADY
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1. electrical conduction of the heart: The flow of electrical current causes
E E E E E E E E E E
E smooth, coordinated heart contractions; they produce pumping action of
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E the heart
E
2. Depolarization: electrical charges on the surface of the muscle cell
E E E E E E E E E
E change from positive to negative
E E E E
3. Repolarization: the heart returns to its resting state, and the positive
E E E E E E E E E E
E charge is restored to the surface
E E E E E
4. Where do the electrical impulses begin?: Electrical impulses begin high
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E in the atria in the sinoatrial node, travel to the atrioventricular node and
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E bundle of His, and then move through the Purkinje fibers to the ventricles
E E E E E E E E E E E E
5. Three types of muscle: skeletal, cardiac, smooth
E E E E E E
6. Skeletal muscle: Voluntary muscle/Striated muscle (characteristic
E E E E E
1 E/
,E stripes): Movement of the body like waving or walking/ Skeletal muscle
E E E E E E E E E E
E is attached to the bones of the skeleton
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7. Smooth muscle: Found within blood vessels and intestines
E E E E E E E
8. Cardiac muscle: found only within the heart and is able to create and
E E E E E E E E E E E E
E conduct its own electrical impulses
E E E E
9. Ligaments: Connect bone to bone E E E E
10.Tendons: Ropelike structures that connect muscles to bones
E E E E E E E
11.Cartilage: Smooth connective tissue that covers the ends of bones at
E E E E E E E E E E
E mobile jointsE
12.Anatomy of lower airway: delivers oxygen to alveoli: Trachea
E E E E E E E E
E (windpipe): conduit for air entry into the lungs; divides at the carina into
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E two main stem bronchi, right and left
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Bronchioles: dilate and constrict as oxygen passes through
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E them Small bronchioles connect to alveoli: site of oxygen and de
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E carbon dioxi Thyroid cartilage (adam's apple): forms the
E E E E E E E
E anterior part of the larynx Cricoid cartilage: immediately
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2 E/
, E below the thyroid
E E
Cricothyroid membrane E
13.Anatomy of upper airway: Nose, Mouth (Oral Cavity), Jaw dible),
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E (man Pharynx, and Larynx (Voice Box)
E E E E E
14.The Larynx: Does not tolerate any foreign or liquid material and any
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E contact will result in a violent episode of coughing
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3 E/
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