Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
p final q 101-150
| Question | Answer |
|---|---|
| What would the result be if the phrenic nerve received an impulse from the cervical plexus? | The diaphragm would stop contracting. |
| The cerebellum performs all of the following functions except: | controls cardiac function. |
| The part of the brain that assists in the maintenance of balance is the: | cerebellum. |
| Cerebrospinal fluid is formed by filtration of blood in the: | choroid plexuses. |
| The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic. | true |
| All of the following are nonsteroid hormones except: | cortisol |
| The immediate effect of a steroid hormone on a cell is the: | transcription of RNA |
| Which of the following is not true of a receptor potential? | It follows the all-or-none law. |
| Visceroceptors are located in which of the following? | Internal organs |
| Which of the following is a function of glucagon? | Tends to increase blood glucose concentrations |
| When you are looking at a large green field, which cones would be sending the green wavelength to the brain? | M |
| In comparison with the nervous system, the regulatory effects of the endocrine system are: | slow to appear but long-lasting. |
| The clear and potassium-rich fluid that fills the labyrinth is | endolymph. |
| Which of the following is true about pain receptors? | Alpha fibers are associated with sharp, localized pain. |
| The type of cells that secrete ACTH are: | corticotrophs |
| The sequence of auditory ossicles in the middle ear starting at the tympanic membrane and ending at the oval window is: | malleus, incus, and stapes. |
| One of the few hormones that functions on a positive-feedback loop is: | oxytocin |
| The olfactory tract carries impulses associated with: | smell |
| The production of thyroid hormone is stimulated by another hormone from the: | anterior pituitary. |
| Which is not true of the hormone somatostatin? | It stimulates the secretion of insulin. |
| Which of the following vessels do not have the ability to constrict and dilate? | capillaries |
| During pregnancy, what happens to the oxygenated blood returned from the placenta via the umbilical vein? | It flows into the inferior vena cava. |
| What is the functional significance of large areas of cardiac muscle being electrically coupled to form a single functional syncytium? | Because they form a syncytium, muscle cells can pass an action potential along a large area of the heart wall, stimulating contraction in each muscle fiber of the syncytium. |
| The mechanisms of which three hormones work together to regulate blood volume? | aldosterone, ANH, and ADH |
| Neutrophils are highly mobile and phagocytic. They migrate out of blood vessels and into tissue spaces. This process is called | diapedesis |
| The vagus is said to act as a “brake” on the heart. This situation is called | vagal inhibition |
| Starling’s law of the heart states that, within limits, the longer, or more stretched, the heart fibers are at the beginning of the contraction, the | stronger the contraction. |
| Blood volume per kilogram of body weight varies inversely with: | body fat |
| The term used to describe the collection of mechanisms that influence the circulation of blood is: | hemodynamics. |
| A glycoprotein hormone that is secreted to increase oxygen concentration in the tissues is | erythropoietin. |
| The movement of phagocytes from blood vessels to an inflammation site is called | diapedesis |
| The _____ postulates that when an antigen enters the body, it selects the clone whose cells are committed to synthesizing its specific antibody and stimulates these cells to proliferate and to thereby produce more antibodies. | clonal selection theory |
| The function of which antibody is basically unknown? | IgD |
| Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? | immunoglobulin M |
| Lymphocytes that kill many types of tumor cells and cells infected by different kinds of viruses are known as | natural killer cells. |
| The lymphatic system serves various functions in the body. The two most important functions of this system are | fluid balance and immunity. |
| _______ is the only antibody class with the ability to cross the placental barrier, providing passive immunity to the developing fetus during pregnancy. | IgG |
| The functions of the lymphatic system include:\ | transporting interstitial fluid back to the bloodstream. providing immunological defenses. transporting absorbed fats from the intestine to the blood. houses and develops lymphocytes. a,b,c,d |
| The body’s defense mechanisms can be organized into one of two major categories of immune mechanisms; these are | innate and adaptive immunity. |
| Which of the following is a powerful poison that acts directly on any cell and quickly kills it? | lymphotoxin |
| Which protein interferes with the ability of viruses to cause disease? | interferon |
| Complement can best be described as a(n): | enzyme in blood |
| The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: | self tolerance |
| _____ refers to a phenomenon in which the genetic characteristics common to a particular kind of organism provide defense against certain pathogens. | Species resistance |
| Recognition of antigens by antibodies occurs when an | antigen’s epitopes fit into and bind to an antigen molecule’s antigen-binding site. |
| About 98.5% of the oxygen carried by systemic arterial blood is attached to: | hemoglobin. |
| External respiration can be defined as: | the exchange of gases between the lung and the blood capillaries in the lung. pulmonary ventilation. Both A & B |
| The term used to describe the volume of air exchanged during normal inspiration and expiration is: | tidal volume. |
| Which of the following would you expect to happen to cellular respiration during exercise? | Increased cellular respiration occurs during exercise, causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause an increase in respiration rate. |
| The PCO2 in the atmosphere is: | less than in the alveolar air. |
Created by:
lcamarena7792