Name___________________BIO 242 (Cudaback)Summer 2009 SSCC

Quiz I

1. Proprioceptors include all of the following EXCEPTa. Golgi tendon organsb. muscle spindlesc. joint kinesthetic receptorsd. tactile discs

2. Dorsal root ganglia contain

a. axon terminals of somatic and autonomic motor neuronsb. axon terminals of sensory afferentsc. cell bodies of somatic motor neurons onlyd. cell bodies of sensory afferents

3. The peripheral nervous system includes all of the following subdivisions EXCEPT

a. spinal cordb. somatic efferentsc. sensory afferentsd. parasympathetic

4. Which of the following cranial nerves serves regions beyond the head and neck?

a. opticb. vagusc. trochleard. vestibulocochlear

5. The autonomic nervous system can stimulate all of the following EXCEPTa. cardiac muscleb. skeletal musclec. smooth muscled. glandular tissue

6. Which of the following neurotransmitters is most likely to be released onto effector organs upon sympathetic activation?

a. acetylcholineb. epinephrinec. norepinephrined. dopamine

7. Taste receptors are calleda. hair cellsb. olfactory receptorsc. gustatory receptorsd. taste buds

8. Lens accommodation is controlled by thea. ciliary muscleb. superior rectus musclec. superior oblique muscled. dilator pupillae muscle

9. The photoreceptors of the eye can be found in which of the following layers?

a. corneab. retinac. sclerad. choroid

10.The highest concentration of cones is found in thea. optic discb. fovea centralisc. irisd. sclera

11.The clear jelly-like material located just posterior to the lens is called thea. choroidb. aqueous humorc. vitreous humord. uvea

12.Of the neurons in the retina, which axons form the optic nerve?a. bipolar neuronsb. ganglion cellsc. amacrine cellsd. horizontal cells

13.Your sense of balance or equilibrium is associated with what other special sense?

a. sightb. smellc. hearingd. taste

14.Olfaction is the special sense associated witha. sightb. smellc. hearingd. taste

15.As visible light passes through the lens it bends in a process calleda. dispersionb. reflectionc. refractiond. accommodation

16.The photoreceptors of your visual system are calleda. bipolar cellsb. rods and conesc. ganglion cellsd. hair cells

17.All of the following classes of molecules can act as hormones EXCEPTa. nucleotidesb. lipidsc. peptidesd. steroids

18.Pituitary hormones are released in response to direct communication with what brain structure?

a. cerebral cortexb. cerebellumc. brain stemd. hypothalamus

19.All of the following are examples of endocrine organs EXCEPTa. liverb. adrenalsc. pituitaryd. thyroid

20.Stimulation of hormone release by changing blood levels of certain molecules is called

a. hormonal stimulusb. humoral stimulusc. neural stimulusd. synergistic stimulus

21.The hormone insulin is produced by beta cells in which organ?a. liverb. pancreasc. pituitaryd. adrenals

22.Testosterone is to the male as what hormone is to the female?a. luteinizing hormoneb. follicle stimulating hormonec. estrogend. progesterone

23.All of the following hormones are produced by the pituitary gland EXCEPTa. luteinizing hormoneb. growth hormonec. thyrotropin-releasing hormoned. oxytocin

24.The hypophyseal portal system consists of capillaries that directly connect the

a. hypothalamus and anterior pituitaryb. hypothalamus and posterior pituitaryc. anterior and posterior pituitaryd. pituitary and thyroid

25.Target cell specificity in the endocrine system is ensured bya. autocrine signalingb. paracrine signalingc. expression of the corresponding receptord. production of the specific hormone

26.Release of hormone in response to an increase in plasma calcium concentrations describes which of the following control mechanisms?

a. humoral stimulusb. hormonal stimulusc. neural stimulusd. none of the above

27.All of the following are examples of peptide hormones EXCEPTa. growth hormoneb. cortisolc. oxytocind. insulin

28.The adrenal glands produce and release all of the following hormones EXCEPT

a. testosteroneb. adrenalinec. aldosteroned. adrenocorticotropic hormone (ACTH)

29.The process of “iodide trapping” by the thyroid requiresa. active transport of iodide into the follicle cellb. passive diffusion of iodide into the follicle cellc. iodide passage with water by bulk flowd. no expenditure of energy

30.The parathyroid gland responds to falling plasma calcium concentrations by

a. releasing thyroid hormoneb. releasing parathyroid hormonec. releasing calcitonind. inhibiting the release of parathyroid hormone

31. Insulin is produced by thea. parafollicular cells of the thyroidb. alpha cells of the pancreasc. beta cells of the pancreasd. liver