Anatomy and Physiology Key Terms Quiz
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Questions and Answers

The ___________ is made up of the maxilla and zygoma, as well as the frontal bone of the cranium.

orbit

The electrical impulse of the heart normally begins at the:

  • Sinoatrial node (correct)
  • Bundle of His
  • Atrioventricular node
  • Purkinje fibers
  • How does respiration differ from ventilation?

  • Respiration occurs when the diaphragm and intercostal muscles contract, whereas ventilation occurs when those same muscles relax.
  • Ventilation occurs when air is forced into the lungs, whereas respiration occurs when air is drawn or sucked into the lungs.
  • Respiration is the process of gas exchange, whereas ventilation is the simple movement of air between the lungs and the environment. (correct)
  • Respiration occurs when oxygen is delivered to the cells of the body, whereas ventilation occurs when carbon dioxide is removed.
  • The dorsal respiratory group (DRG) is a part of the brain stem and is responsible for:

    <p>Initiating inspiration</p> Signup and view all the answers

    The average adult has approximately ___________ of blood in his or her body.

    <p>6 L</p> Signup and view all the answers

    The part of the brain that controls the left side of the body is the:

    <p>Right side cerebrum</p> Signup and view all the answers

    Which of the following statements regarding the heart is correct?

    <p>It is under control of the autonomic nervous system.</p> Signup and view all the answers

    The axial skeleton is composed of the:

    <p>Skull, face, thorax, and vertebral column</p> Signup and view all the answers

    A by-product of involuntary muscle contraction and relaxation is:

    <p>Heat</p> Signup and view all the answers

    Deoxygenated blood from the abdomen, pelvis, and lower extremities is returned to the right atrium via the:

    <p>Inferior vena cava</p> Signup and view all the answers

    Which of the following systems is responsible for releasing hormones that regulate body activities?

    <p>Endocrine</p> Signup and view all the answers

    A fracture of the humerus just above the elbow would be described as a:

    <p>Distal humerus fracture</p> Signup and view all the answers

    The most distal four spinal vertebrae, which are fused together, form the:

    <p>Coccyx</p> Signup and view all the answers

    Which of the following are central pulses?

    <p>Femoral and carotid</p> Signup and view all the answers

    The elbow is an example of a ____________ joint.

    <p>Hinge</p> Signup and view all the answers

    Which of the following is MOST characteristic of adequate breathing in an adult?

    <p>Respirations of 20 breaths/min and bilateral chest movement</p> Signup and view all the answers

    The diaphragm and intercostal muscles contract during:

    <p>Inhalation</p> Signup and view all the answers

    The primary organ responsible for absorption of products of digestion is the:

    <p>Small intestine</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.</p> Signup and view all the answers

    An intoxicated 40-year-old male is found lying face down. How would you document his body's position?

    <p>Prone</p> Signup and view all the answers

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

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

    The circulation of blood within an organ or tissue in adequate amounts to meet the cells' current needs is called:

    <p>Perfusion</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</p> Signup and view all the answers

    Bile is produced by the liver and concentrated and stored in the:

    <p>Gallbladder</p> Signup and view all the answers

    The connecting nerve, a nerve of the peripheral nervous system, functions by:

    <p>Connecting the sensory and motor nerves and bypassing the brain.</p> Signup and view all the answers

    The phase of the cardiac cycle in which the ventricles fill with blood is called:

    <p>Diastole</p> Signup and view all the answers

    The leaf-shaped flap of tissue that prevents food and liquid from entering the trachea during swallowing is called the:

    <p>Epiglottis</p> Signup and view all the answers

    Hemoglobin is a molecule that attaches to ___________ and carries oxygen.

    <p>erythrocytes</p> Signup and view all the answers

    The air you breathe is _______ oxygen, and the air you exhale is _______ oxygen.

    <p>21%, 16%</p> Signup and view all the answers

    Which of the following signs of respiratory distress is typically unique to infants and children?

    <p>Seesaw respirations</p> Signup and view all the answers

    The descending aorta branches into the:

    <p>Common iliac arteries</p> Signup and view all the answers

    The bones that comprise the fingers and toes are called:

    <p>Phalanges</p> Signup and view all the answers

    Which of the following is NOT a facial bone?

    <p>Mastoid</p> Signup and view all the answers

    Both areas of the pons are used to:

    <p>Augment respirations during emotional or physical stress</p> Signup and view all the answers

    A 5-year-old boy has fallen and has a severe deformity of the forearm near the wrist. He has possibly sustained a fracture of the:

    <p>Distal forearm</p> Signup and view all the answers

    The topographic term used to describe the part of the body that is nearer to the feet is:

    <p>Inferior</p> Signup and view all the answers

    Your ability to remain awake is a function of the:

    <p>Reticular activating system</p> Signup and view all the answers

    Which of the following statements regarding the medulla oblongata is correct?

    <p>The medulla is sensitive to pH changes and sends messages via the phrenic nerve to contract the diaphragm.</p> Signup and view all the answers

    A young male jumped from a tree and landed feet first. What aspect of his body has sustained the initial injury?

    <p>Plantar</p> Signup and view all the answers

    Relative to the adult's airway, the child's:

    <p>Pharynx is smaller and less deeply curved</p> Signup and view all the answers

    A person's bones would become brittle if he or she was deficient in:

    <p>Calcium</p> Signup and view all the answers

    The vocal cords are located in the:

    <p>Larynx</p> Signup and view all the answers

    What is the function of the fallopian tubes?

    <p>Transport a mature egg to the uterus</p> Signup and view all the answers

    In relation to the wrist, the elbow is:

    <p>Proximal</p> Signup and view all the answers

    The large, flat, triangular bone that overlies the posterior thoracic wall is called the:

    <p>Scapula</p> Signup and view all the answers

    The femoral head forms a ball-and-socket joint with the:

    <p>Acetabulum</p> Signup and view all the answers

    Negative pressure breathing involves:

    <p>A drop in pressure within the chest cavity</p> Signup and view all the answers

    Movement or motion away from the body's midline is called:

    <p>Abduction</p> Signup and view all the answers

    What happens when blood volume is lost from the body?

    <p>The arteries contract to increase the blood pressure</p> Signup and view all the answers

    Trauma to the __________ lobe of the brain would likely result in visual disturbances.

    <p>Occipital</p> Signup and view all the answers

    Study Notes

    Anatomy and Physiology Key Terms

    • Orbit: Composed of the maxilla, zygoma, and frontal bone.
    • Sinoatrial Node: Initiates the electrical impulse of the heart.
    • Respiration vs. Ventilation: Respiration is gas exchange while ventilation is the movement of air.
    • Dorsal Respiratory Group (DRG): Located in the brain stem; responsible for initiating inspiration.

    Blood and Circulatory System

    • Average Blood Volume: Approximately 6 liters in an adult.
    • Deoxygenated Blood Return: Inferior vena cava returns blood from the abdomen, pelvis, and lower extremities to the right atrium.
    • Perfusion: Adequate circulation of blood within an organ to meet current cellular needs.

    Skeletal and Muscular System

    • Axial Skeleton: Includes skull, face, thorax, and vertebral column.
    • Hinge Joint: The elbow is classified as a hinge joint.
    • Phalanges: Bones that make up the fingers and toes.

    Nervous System

    • Autonomic Nervous System: Controls heart function.
    • Connecting Nerve Function: Connects sensory and motor nerves, bypassing the brain.
    • Reticular Activating System: Governs wakefulness.

    Respiratory System

    • Hypoxic Drive: Backup respiratory control system responding to low blood oxygen levels.
    • Epiglottis: Leaf-shaped tissue preventing food from entering the trachea during swallowing.
    • Seesaw Respirations: Respiratory distress sign typically seen in infants and children.

    Digestive System

    • Small Intestine: Primary organ for the absorption of digestion products.
    • Gallbladder: Concentrates and stores bile produced by the liver.

    Cardiac Cycle

    • Diastole: Phase when ventricles fill with blood.
    • Medulla Oblongata: Monitors pH changes and regulates diaphragm contraction.

    Injuries and Conditions

    • Distal Humerus Fracture: Describes a fracture near the elbow.
    • Calcium Deficiency: Leads to brittle bones.

    Anatomical Directions

    • Inferior: Refers to body parts closer to the feet.
    • Proximal: The elbow is proximal to the wrist.
    • Abduction: Movement away from the body's midline.

    Additional Notes

    • Bilateral Chest Movement: Indicator of adequate adult breathing.
    • Agonal Respirations: Ineffective breaths needing assistance, typically occurring before cardiac arrest.
    • Plantar Aspect: Refers to the bottom of the feet, relevant for injuries from jumping.
    • Average Air Composition: Inhaled air contains 21% oxygen; exhaled air contains 16% oxygen.

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    Description

    Test your knowledge of key terms in anatomy and physiology. This quiz covers important concepts related to the circulatory, respiratory, skeletal, and muscular systems. Challenge yourself and enhance your understanding of the human body!

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