Domanda del libro di testo
Areas of the body where you would not expect to find slow fibers include the
(a) Back and calf muscles
(b) Eye and hand
(c) Chest and abdomen
(d) All of these
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Ch. 10 Muscle Tissue
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy & PhysiologyISBN: 9780137854011
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TOC.tableOfContents
- Ch. 1 An Introduction to Anatomy and Physiology25
- Ch. 2 The Chemical Level of Organization34
- Ch. 3 The Cellular Level of Organization29
- Ch. 4 The Tissue Level of Organization24
- Ch. 5 The Integumentary System17
- Ch. 6 Bones and Bone Structure33
- Ch. 7 The Axial Skeleton11
- Ch. 8 The Appendicular Skeleton17
- Ch. 9 Joints13
- Ch. 10 Muscle Tissue12
- Ch. 11 The Muscular System28
- Ch. 12 Nervous Tissue18
- Ch. 13 The Spinal Cord, Spinal Nerves, and Spinal Reflexes22
- Ch. 14 The Brain and Cranial Nerves20
- Ch. 15 Sensory Pathways and the Somatic Nervous System17
- Ch. 16 The Autonomic Nervous System and Higher-Order Functions30
- Ch. 17 The Special Senses15
- Ch. 18 The Endocrine System21
- Ch. 19 Blood31
- Ch. 20 The Heart31
- Ch. 21 Blood Vessels and Circulation26
- Ch. 22 The Lymphatic System and Immunity25
- Ch. 23 The Respiratory System4
- Ch. 24 The Digestive System18
- Ch. 26 The Urinary System31
- Ch. 27 Fluids & Electrolytes30
- Ch. 28 The Reproductive System12
- Ch. 29 Development and Inheritance17
Martini, Nath, Bartholomew12th EditionFundamentals of Anatomy & PhysiologyISBN: 9780137854011Non è quello che usi tu?Cambia libro di testo
Capitolo 10, Problema 29
Linda's father suffers an apparent heart attack and is rushed to the emergency room of the local hospital. The doctor on call tells her that he has ordered some blood work and that he will be able to tell if her father actually had a heart attack by looking at the blood levels of CK and cardiac troponin. Why would knowing the level of CK and cardiac troponin help to indicate if a person suffered a heart attack?
Guida verificata passo dopo passo1
Understand that a heart attack, or myocardial infarction, causes damage to heart muscle cells, leading to the release of certain proteins into the bloodstream.
Recognize that Creatine Kinase (CK), specifically the CK-MB isoenzyme, is an enzyme found in heart muscle cells that leaks into the blood when these cells are damaged.
Know that cardiac troponin is a protein complex involved in muscle contraction in heart muscle cells and is highly specific to cardiac tissue; its presence in blood indicates heart muscle injury.
Realize that measuring elevated levels of CK-MB and cardiac troponin in the blood helps doctors confirm whether heart muscle damage has occurred, which is indicative of a heart attack.
Therefore, by analyzing the blood levels of CK and cardiac troponin, the doctor can determine if the patient's symptoms are due to a heart attack based on the presence and amount of these markers.
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Cardiac Biomarkers
Cardiac biomarkers are substances released into the blood when the heart muscle is damaged. Measuring their levels helps diagnose heart attacks by indicating heart tissue injury. Common biomarkers include creatine kinase (CK) and cardiac troponins, which rise in the blood after myocardial damage.
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9:44
Events in the Cardiac Cycle
Creatine Kinase (CK)
Creatine kinase is an enzyme found in heart, brain, and skeletal muscles. The CK-MB isoenzyme is specific to heart muscle and increases in the blood after a heart attack, typically within 4-6 hours. Elevated CK levels suggest muscle damage, aiding in heart attack diagnosis.
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4:04Membrane Bound Receptors and Secondary Messengers Example 2
Cardiac Troponin
Cardiac troponins (troponin I and T) are proteins involved in heart muscle contraction and are highly specific to cardiac tissue. They are released into the bloodstream when heart muscle cells are injured, making them the most sensitive and specific markers for detecting myocardial infarction.
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9:44Events in the Cardiac Cycle
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