EMT-B Chapter 6: The Human Body Quiz
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Questions and Answers

The carpal bones form the:

  • Wrist (correct)
  • Hand
  • Ankle
  • Foot

The pelvic bones are formed by the fusion of the:

  • Sacrum and ischium
  • Pubis and acetabulum
  • Ilium, pubis, and sacrum
  • Ilium, ischium, and pubis (correct)

Which part of the central nervous system is responsible for coordinating bodily movements such as writing or sewing?

  • Cerebrum
  • Brain Stem
  • Cerebellum (correct)
  • Hypothalamus

Large amounts of adenosine triphosphate (ATP) are generated when:

<p>The cells function with adequate oxygen (C)</p> Signup and view all the answers

The body's backup system of respiratory control, which is based on low concentrations of oxygen in the blood, is called the:

<p>Hypoxic drive (C)</p> Signup and view all the answers

At rest, the normal adult heart rate should not exceed:

<p>100 beats/min (C)</p> Signup and view all the answers

Anterior to the knee is a specialized bone called the:

<p>Patella (D)</p> Signup and view all the answers

Pathophysiology is the study of the functional changes that occur when the body reacts to a particular:

<p>Disease (A)</p> Signup and view all the answers

A patient has a large accumulation of blood in the sac surrounding the heart. Which type of shock would this condition cause?

<p>Obstructive (D)</p> Signup and view all the answers

Worn-out blood cells, foreign substances, and bacteria are filtered from the blood by the:

<p>Spleen (B)</p> Signup and view all the answers

During each heartbeat, ________ of blood is ejected from the adult heart, an amount called the stroke volume.

<p>70 to 80 mL (B)</p> Signup and view all the answers

Which of the following statements regarding agonal respirations is correct?

<p>Agonal respirations are ineffective and need to be assisted. (B)</p> Signup and view all the answers

Which of the following is NOT a function of the skin?

<p>Metabolic coordination (B)</p> Signup and view all the answers

The exchange of oxygen and nutrients for waste products of metabolism occurs at the cellular level in the:

<p>Capillaries (C)</p> Signup and view all the answers

Signs of adequate breathing in the adult include all of the following, EXCEPT:

<p>A reduction in tidal volume (D)</p> Signup and view all the answers

The ________ is a muscular dome that forms the inferior boundary of the thorax, separating the thorax from the abdomen.

<p>Diaphragm (D)</p> Signup and view all the answers

Which set of nerves is responsible for carrying information from the body to the central nervous system?

<p>Sensory (A)</p> Signup and view all the answers

Oxygen and carbon dioxide pass across the alveolar membrane in the lungs through a process called:

<p>Diffusion (B)</p> Signup and view all the answers

The major artery that supplies all other arteries with blood is the:

<p>Aorta (C)</p> Signup and view all the answers

All critical life functions are coordinated in which part of the brain?

<p>Brain stem (D)</p> Signup and view all the answers

The central nervous system is composed of the:

<p>Brain and spinal cord (B)</p> Signup and view all the answers

The muscle tissue of the heart is called the:

<p>Myocardium (D)</p> Signup and view all the answers

Flashcards

What are carpal bones?

The eight small bones that make up the wrist.

What bones make up the pelvic girdle?

The pelvic girdle is formed by the fusion of three bones: the ilium, ischium, and pubis.

What part of the brain coordinates movement?

The cerebellum is the part of the brain responsible for coordinating voluntary movements, balance, and coordination.

When is ATP generated?

Cells generate large amounts of ATP (adenosine triphosphate) when they have enough oxygen to function efficiently.

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What is the hypoxic drive?

The hypoxic drive is a backup system that stimulates breathing when blood oxygen levels are low. It functions as the secondary drive.

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What is a normal heart rate at rest?

A normal adult heart rate at rest should typically be below 100 beats per minute.

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What is the bone in front of the knee?

The patella is a small, specialized bone located at the front of the knee.

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What is pathophysiology?

Pathophysiology is the study of how the body functions abnormally in response to disease.

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What type of shock is caused by blood buildup around the heart?

Obstructive shock occurs when there's a buildup of blood in the sac surrounding the heart, called the pericardium.

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What organ filters the blood?

The spleen is a vital organ that filters worn-out blood cells, foreign substances, and bacteria from the blood.

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What is stroke volume?

The stroke volume is the amount of blood ejected from the heart during each beat, which is typically around 70 to 80 mL for an adult.

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What are agonal respirations?

Agonal respirations are ineffective breathing patterns that appear gasping or labored. They require immediate intervention.

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What is NOT a function of the skin?

The skin does not play a role in metabolic coordination.

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Where does nutrient exchange occur in the body?

Gases and nutrients are exchanged within the capillaries, the smallest blood vessels.

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What is NOT a sign of adequate breathing?

A reduction in tidal volume would be a sign of inadequate breathing.

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What separates the chest and abdomen?

The diaphragm is a muscular dome-shaped structure that separates the chest cavity from the abdomen, helping with breathing.

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Which nerves carry info from the body to the brain?

The sensory nerves carry information from the body to the central nervous system.

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What process allows gas exchange in the lungs?

Diffusion is the process by which gases like oxygen and carbon dioxide move across the alveolar membrane in the lungs.

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What is the main artery in the body?

The aorta is the main artery that carries blood from the heart to the rest of the body.

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Where are critical life functions coordinated?

The brain stem is the part of the brain that controls vital functions like breathing, heart rate, and blood pressure.

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What makes up the central nervous system?

The central nervous system is made up of the brain and spinal cord.

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What is the muscle tissue of the heart called?

Myocardium is the specialized muscle tissue that makes up the heart.

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Study Notes

Human Body Structures

  • Carpal bones comprise the wrist.
  • Pelvic bones consist of the fusion of ilium, ischium, and pubis.
  • Patella is a specialized bone located anterior to the knee.

Central Nervous System Functionality

  • Cerebellum coordinates bodily movements such as writing or sewing.
  • The brain and spinal cord together form the central nervous system.
  • Sensory nerves carry information from the body to the central nervous system.

Respiratory and Cardiac Physiology

  • Cells generate large amounts of adenosine triphosphate (ATP) when functioning with adequate oxygen.
  • The body's backup respiratory control system, responding to low blood oxygen levels, is known as hypoxic drive.
  • A normal resting adult heart rate should not exceed 100 beats per minute; stroke volume ranges from 70 to 80 mL per heartbeat.
  • Agonal respirations are ineffective and need assistance.

Blood Composition and Functions

  • The spleen filters out worn-out blood cells, foreign substances, and bacteria.
  • Capillaries are the site for the exchange of oxygen and nutrients for waste products at the cellular level.
  • Aorta is the major artery supplying blood to all other arteries.

Anatomical and Physiological Concepts

  • Signs of adequate adult breathing include 18 breaths per minute and bilateral clear breath sounds; a reduction in tidal volume is not a sign of adequacy.
  • Diaphragm forms the inferior boundary of the thorax, separating it from the abdomen.

Health and Pathophysiology

  • Pathophysiology examines functional changes in the body in response to disease.
  • Accumulation of blood in the sac surrounding the heart leads to obstructive shock.

Additional Physiological Insights

  • The brain stem coordinates all critical life functions.
  • Myocardium refers to the muscle tissue of the heart.
  • The skin performs various functions, excluding metabolic coordination.

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Test your knowledge of the human body's structure and function with this quiz based on EMT-B Chapter 6. Cover important concepts like the carpal and pelvic bones, as well as the central nervous system. Perfect for EMT students preparing for exams!

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