Exam 2

40 Questions  I  By Rachelelyse
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  • 1. 
    The term general senses refers to sensitivity to all of the following, EXCEPT
    • A. 

      Taste

    • B. 

      Pain

    • C. 

      Temperature

    • D. 

      Touch

    • E. 

      Vibration


  • 2. 
    The general senses
    • A. 

      Are located in specialized structures called sense organs

    • B. 

      Are localized to specific areas of the body

    • C. 

      Cannot generate action potentials

    • D. 

      Involve receptors that are relatively simple in structure

    • E. 

      Both A and B


  • 3. 
    A receptor that contains many mechanically gated ion channels would function best as a
    • A. 

      Tactile receptor

    • B. 

      Thermoreceptor

    • C. 

      Nociceptor

    • D. 

      Chemoreceptor

    • E. 

      Light receptor


  • 4. 
    Receptors that monitor the position of joints belong to the category called
    • A. 

      Chemoreceptors

    • B. 

      Thermoreceptors

    • C. 

      Proprioceptors

    • D. 

      Baroreceptors

    • E. 

      Nociceptors


  • 5. 
    Mechanoreceptors that respond to changes in blood pressure are called
    • A. 

      Nociceptors

    • B. 

      Chemoreceptors

    • C. 

      Thermoreceptors

    • D. 

      Baroreceptors

    • E. 

      Proprioceptors


  • 6. 
    Pain is to _________ as cold is to _________ .
    • A. 

      Chemoreceptors; nociceptors

    • B. 

      Nociceptors; thermoreceptors

    • C. 

      Baroreceptors; thermoreceptors

    • D. 

      Baroreceptors; chemoreceptors

    • E. 

      Baroreceptors; nociceptors


  • 7. 
    Peripheral adaptation __________ the number of action potentials that reach the CNS.
    • A. 

      Neutralizes

    • B. 

      Increases

    • C. 

      Decreases

    • D. 

      Stabilizes

    • E. 

      Both A and C


  • 8. 
    The ________ division of the autonomic nervous system is said to function during "rest and digest"
    • A. 

      Sympathetic

    • B. 

      Somatomotor

    • C. 

      Visceral

    • D. 

      Parasympathetic

    • E. 

      Thoracolumbar


  • 9. 
    The statement "it initiates contraction of urinary bladder smooth muscle" is
    • A. 

      True only for the sympathetic nervous system

    • B. 

      True only for the somatic nervous system

    • C. 

      Not true for either the parasympathetic or sympathetic nervous systems

    • D. 

      True for both the parasympathetic and sympathetic nervous systems

    • E. 

      True only for the parasympathetic nervous system


  • 10. 
    Each of the following effects is associated with the action of postganglionic sympathetic fibers, EXCEPT
    • A. 

      Dilation of the pupils

    • B. 

      Increased sweat secretion

    • C. 

      Increased blood flow to skeletal muscles

    • D. 

      Reduced circulation to the skin

    • E. 

      Decreased heart rate


  • 11. 
    Parasympathetic stimulation
    • A. 

      Increases gastric motility

    • B. 

      Causes blood vessels in the skin to dilate

    • C. 

      Increases heart rate

    • D. 

      Causes the pupils to dilate

    • E. 

      Causes sweat glands to secrete


  • 12. 
    Which of the following is essential for memory consolidation?
    • A. 

      Occipital lobe

    • B. 

      Prefrontal lobe

    • C. 

      Hippocampus

    • D. 

      Insula

    • E. 

      Basal nuclei


  • 13. 
    Long-term memories that are with you for a lifetime are called
    • A. 

      Reflexive memories

    • B. 

      Consolidated memories

    • C. 

      Multilobar memories

    • D. 

      Tertiary memories

    • E. 

      Secondary memories


  • 14. 
    Changes in the central nervous system that accompany aging include
    • A. 

      Decreased blood flow to the brain

    • B. 

      Decrease in the number of neurons

    • C. 

      Reduction in brain size and weight

    • D. 

      All of the above

    • E. 

      B and C only


  • 15. 
    The sympathetic division of the ANS is also known as which of the following?
    • A. 

      Craniosacral division

    • B. 

      Somatic division

    • C. 

      Resting division

    • D. 

      Thoracolumbar division

    • E. 

      Both B and D


  • 16. 
    Your uncle was just diagnosed with a heart attack.  one of his major symptoms is left arm pain.  You are not surprised because you are familiar with the phenomenon of
    • A. 

      Psychogenic pain

    • B. 

      Neurogenic pain

    • C. 

      Phantom pain

    • D. 

      Referred pain

    • E. 

      Somatic pain


  • 17. 
    Muscles that guard entrances and exits of internal passageways are ______ muscles.
    • A. 

      Bipennate

    • B. 

      Circular

    • C. 

      Parallel

    • D. 

      Pennate

    • E. 

      Convergent


  • 18. 
    The most common lever systems in the body are those that have the applied force between the fulcrum and the load.  These are called ________ levers.
    • A. 

      Third-class

    • B. 

      Fourth-class

    • C. 

      Fifth-class

    • D. 

      Second-class

    • E. 

      First-class


  • 19. 
    The names of the muscles can indicate all of the following EXCEPT
    • A. 

      The angle of the muscle relative to the long axis of the body

    • B. 

      Collagen content of the muscle

    • C. 

      Structural characteristics of the muscle

    • D. 

      The action of the muscle

    • E. 

      The location of the muscle


  • 20. 
    Which of the following is NOT a muscle of the rotator cuff?
    • A. 

      Supraspinatus

    • B. 

      Infraspinatus

    • C. 

      Subscapularis

    • D. 

      Subclavius

    • E. 

      Teres minor


  • 21. 
    Which of the following statements is INCORRECT?
    • A. 

      Skeletal muscles store nutrient reserves

    • B. 

      Skeletal muscles are responsible for the pumping action of the heart

    • C. 

      Skeletal muscles support the weight of some internal organs

    • D. 

      Skeletal muscle contractions help maintain body temperature

    • E. 

      The contractions of skeletal muscles pull on tendons and move bones of the skeleton


  • 22. 
    The dense layer of connective tissue that surrounds an entire skeletal muscle is the
    • A. 

      Tendon

    • B. 

      Fascicle

    • C. 

      Perimysium

    • D. 

      Epimysium

    • E. 

      Endomysium


  • 23. 
    Muscle fibers differ from "typical cells" in that muscle fibers
    • A. 

      Have many nuclei

    • B. 

      Lack mitochondria

    • C. 

      Lack a plasma membrane

    • D. 

      Are very small

    • E. 

      Both B and C


  • 24. 
    Which of the following best describes the term sarcomere?
    • A. 

      Thin filaments are anchored here

    • B. 

      Protein that accounts for elasticity of resting muscle

    • C. 

      Largely made of myosin molecules

    • D. 

      Repeating unit of striated myofibrils

    • E. 

      Storage site for calcium ions


  • 25. 
    Which of the following best describes the term sarcoplasmic reticulum?
    • A. 

      Storage and release site for calcium ions

    • B. 

      Protein that accounts for elasticity of resting muscle

    • C. 

      Largely made of myosin molecules

    • D. 

      Repeating unit of striated myofibrils

    • E. 

      Storage site for calcium ions


  • 26. 
    Cross-bridges are portions of 
    • A. 

      Tropomyosin molecules

    • B. 

      Actin molecules

    • C. 

      Calcium ions

    • D. 

      Myosin molecules

    • E. 

      Troponin molecules


  • 27. 
    A muscle producing tension that peaks and falls at intermediate stimulus rates is said to be in
    • A. 

      Wave summation

    • B. 

      Complete tetanus

    • C. 

      Recruitment

    • D. 

      Incomplete tetanus

    • E. 

      Treppe


  • 28. 
    A single motor neuron together with all the muscle fibers it innervates is called
    • A. 

      A motor unit

    • B. 

      A myotome

    • C. 

      An end plate

    • D. 

      An end foot

    • E. 

      A dermatome


  • 29. 
    The type of contracting in which the muscle fibers do not shorten is called
    • A. 

      Treppe

    • B. 

      Isotonic

    • C. 

      Isometric

    • D. 

      Tetany

    • E. 

      Concentric


  • 30. 
    The type of muscle fiber that is most resistant to fatigue is the _________ fiber.
    • A. 

      Fast

    • B. 

      Slow

    • C. 

      Anaerobic

    • D. 

      High-density

    • E. 

      Intermediate


  • 31. 
    All of the following are true of the nervous system, EXCEPT that it doesn't
    • A. 

      Communicate by the release of neurotransmitters

    • B. 

      Function independently of the endocrine system

    • C. 

      Respond specifically to stimuli

    • D. 

      Respond with motor output

    • E. 

      Respond rapidly to stimuli


  • 32. 
    All of the following are true of steroid hormones, EXCEPT that they
    • A. 

      Are derived from cholesterol

    • B. 

      Are produced by the suprarenal medulla

    • C. 

      Are produced by reproductive glands

    • D. 

      Bind to receptors within the cell

    • E. 

      Are lipids


  • 33. 
    When a catecholamine or peptide hormone binds to receptors on the surface of a cell, the
    • A. 

      Cell membrane becomes depolarized

    • B. 

      Hormone receptor complex moves into the cytoplasm

    • C. 

      Hormone is transported to the nucleus where it alters the activity of DNA

    • D. 

      Cell becomes inactive

    • E. 

      Second messenger appears in the cytoplasm


  • 34. 
    The hypothalamus controls secretion by the adenohypophysis by
    • A. 

      Direct neural stimulation

    • B. 

      Secreting releasing and inhibiting factors into a tiny portal system

    • C. 

      Indirect osmotic control

    • D. 

      Gap synaptic junctions

    • E. 

      Altering ion concentrations and pH in the anterior pituitary


  • 35. 
    Neurons of the supraoptic and paraventricular nuclei of the hypothalamus manufacture
    • A. 

      CRF and GnRH

    • B. 

      FSH and PRL

    • C. 

      TSH and FSH

    • D. 

      GHIH and GHRH

    • E. 

      ADH and oxytocin


  • 36. 
    The pituitary hormone that stimulates milk production by the mammary glands is
    • A. 

      Growth hormone

    • B. 

      FSH

    • C. 

      Prolactin

    • D. 

      TSH

    • E. 

      ACTH


  • 37. 
    Thyroid hormone contains the element
    • A. 

      Zinc

    • B. 

      Fluorine

    • C. 

      Iron

    • D. 

      Iodine

    • E. 

      Chlorine


  • 38. 
    A hormone that can lower blood levels of calcium ion is
    • A. 

      Thyroxine

    • B. 

      Parathyroid hormone

    • C. 

      Calcitonin

    • D. 

      Glucagon

    • E. 

      Oxytocin


  • 39. 
    When blood glucose levels fall,
    • A. 

      Glucagon is released

    • B. 

      Peripheral cells take up more glucose

    • C. 

      Protein synthesis increases

    • D. 

      Insulin is released

    • E. 

      Both B and D


  • 40. 
    Which of these hormones increases production of red blood cells?
    • A. 

      Atrial natriuretic peptide

    • B. 

      Cortisol

    • C. 

      Aldosterone

    • D. 

      Thymosin

    • E. 

      Erythropoietin


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