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Exam #3 Lecture Quizzes

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Termini in questo insieme (49)

  • Which of the following is the hormone that binds to the receptor on a cell’s plasma membrane surface?

    first messenger

  • Which of the following is NOT produced by the anterior lobe of the pituitary gland?

    antidiuretic hormone (ADH)

  • A ‘target’ cell is a cell that:

    is targeted by a hormone

  • Which of the following is NOT a group of hormones based on their chemical structure?

    Carboxyl hormones

  • Which hormone is responsible for stimulating smooth muscle contractions in the uterine wall to promote labor and delivery?

    oxytocin

  • A hormone has an effect on all the cells it comes into contact with.

    false

  • A peptide hormone

    usually binds to its receptor on the plasma membrane of its targetcell.

  • The release of hormones from the anterior pituitary depends on

    both inhibiting and releasing hormones from the hypothalamus.

  • Within the pancreas:

    All of the above are correct

  • As blood glucose increases

    insulin secretion increases and glucagon secretion decreases

  • Which of the following is the method sometimes required to evaluate the efficiency of gas exchange at the lungs?

    arterial puncture

  • Which of the following is not one of the primary types of protein dissolved in plasma?

    insulin

  • Which of the following is NOT a function of blood?

    Replacing Ca

  • Roughly how many of all cells in the human body arered blood cells?

    1/3

  • Hemoglobin is responsible for a red blood cell’s ability to carry what gas(es)?

    carbon dioxide

  • What two components make up whole blood?

    plasma and formed elements

  • How many subunits does hemoglobin contain?

    4

  • Why can’t a person with type A blood safely receive blood from a person with type B blood?

    Because of the ‘B’ antigens in the donor’s blood

  • Which granulocytes make up approximately 2-4% ofcirculating WBCs, have 2-lobed nuclei, are phagocyticand exocytotic, and release anti-inflammatory enzymes?

    eosinophils

  • Which agranulocytes make up approximately 20-40%of circulating WBCs, migrate in and out of peripheral tissues, and are responsible for specific defenses?

    lymphocytes

  • The right side of the heart receives ________ blood from bodytissues and pumps this blood to the lungs.

    oxygen-poor

  • Why is the left ventricular wall thicker than the right?

    blood leaves the heart to the body on the left side of the heart

  • Which of the below is NOT a layer of the heart wall?

    Hypocardium

  • What is the function of the chordae tendinae?

    They anchor the cusps to papillary muscles.

  • Which of the below structures is partially responsible for the lack of back flow into the heart during diastole?

    aorta

  • Which correctly describes the pulmonary vs the systemic circuit?

    The systemic circuit supplies blood to body tissues while the pulmonary circuitpumps blood to lungs to get rid of CO2 and pick up O2

  • Which correctly describes the correct sequence of blood flow through a subset ofchambers/valves in the heart?

    Right atrium → Tricuspid valve → Right ventricle →Pulmonary semilunar valve

  • The coordinated heartbeat is a function of:

    The presence of gap junctions and the intrinsic cardiac conduction system

  • Electrical signals pause for _______ seconds at the AV node

    0.1

  • How is cardiac output calculated?

    Heart rate x stroke volume

  • Which blood vessels are relatively large and carry blood to most of the body organs?

    arteries

  • Which blood vessels have a diameter barely larger than that of a red blood cell?

    capillaries

  • What is the cyclical change in precapillary sphincters that causes blood flow within any given capillary to be intermittent rather than steady?

    vasomotion

  • Which of the following is the largest component of peripheral resistance?

    vascular resistance

  • Which type of resistance is responsible for ‘heart murmurs’?

    turbulence

  • Which blood vessel layer is the innermost layer, is composed of simple squamous epithelium and minimizes friction?

    tunica intima

  • Which blood vessels have thin walls, a large lumen, have the lowest blood pressure and whose smallest class is called a venule?

    veins

  • Which of the following is NOT true of the baroreceptor reflex?

    it is regulated through positive feedback

  • What is a myocardial infarction?

    when the cardiac muscle fibers are damaged due to blockage ofcoronary arteries

    a heart attack

  • Where are the capillary beds in the hepatic portal system?

    the intestines

  • What are the primary cells of the lymphatic system?

    lymphocytes

  • What are our types of immunity?

    innate (nonspecific) immunity & adaptive (specific) immunity

  • Which of the following is NOT a function of the lymphatic system?

    sorting, processing, and packaging proteins for transport via endocytosis

  • What type of immunity protects against particular threats?

    Adaptive immunity

  • What lymphatic vessel picks up the interstitial fluid?

    lymphatic capillaries

  • What is missing in the order of lymph flow below?

    lymphatic vessels

  • The thoracic ducts drains which of the following?

    lower abdomen, lower limbs & left half of head, neck and chest

  • Which of the following does NOT describe red pulp of the spleen?

    composed of T cells and B cells

  • Which of the following is NOT a lymphoid organ?

    kidney