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Unformatted text preview: spatial summation C. action potential D. All of the above. E. #1 and #3 only. Score: Value 0% 100% 0% 0% 0% 1/1 7. Opening of the chemically-gated K+ channels would produce: Student Response A. depolarization B. hyperpolarization Value 0% 0% Student Response C. EPSP D. IPSP E. Both #1 and #3. F. Both #2 and #4. Score: Value 0% 0% 0% 100% 1/1 8. The relative refractory period occurs during: Student Response A. opening of Na+ gates B. opening of K+ gates + + C. closing of K gates when excess K has left the neuron. Value 0% 0% 100% D. opening of K+ gates when excess K+ has left the neuron. 0% Score: 1/1 9. Threshold depolarization will result in an action potential when it occurs at: Student Response Value A. chemically-gated ion channels only B. voltage-gated ion channels only 0% 100% C. Both chemically-gated and voltage-gated ion channels. D. The receptive region. 0% Score: 0% 1/1 10. When a stretch reflex is initiated it produces: Student Response A. Muscle contraction in the initiating muscle and reciprocal inhibition. B. Muscle contraction in the initiating muscle and reciprocal activation. C. Muscle relaxation in the initiating muscle and reciprocal inhibition. D. Muscle relaxation in the initiating muscle and reciprocal activation. Score: 1/1 View Attempt 2 of 2 Title: Quiz #9 The Brain Started: November 10, 2008 2:51 PM Submitted: November 10, 2008 2:57 PM Time spent: 00:05:37 Total score: 10/10 = 100% Total score adjusted by 0.0 Maximum possible score: 10 1. The centers which control the heart, respiratory muscle contraction, and vascular smooth muscle are located in the: Student Response Value Student Response A. medulla oblongata 100% B. pons varoli 0% C. pineal body 0% Value 100% 0% 0% 0% D. E. Score: midbrain 0% corpora quadrigemia 1/1 0% 2. The brain center which filters out sensory stimuli and sends it to appropriate locations is the: Student Response Value Student Response A. thalamus 100% B. hypothalamus 0% C. substantia nigra 0% D. basal nuclei 0% E. pons 0% Score: 1/1 3. Cerebrospinal fluid is a filtrate from the capillaries of the: Student Response Value Student Response A. choroid plexus 100% B. falx cerebri 0% C. superior sagittal sinus 0% D. septum pellucidum 0% Score: 1/1 4. The _____ covers the entrance to the lateral ventricle. Student Response Value Student Response A. septum pellucidum 100% B. fornix 0% C. choroid plexus 0% D. arbor vitae 0% Score: 1/1 5. The brain center which mediates functions which are part voluntary and part involuntary is: Student Response Value A. thalamus 0% B. hypothalamus 0% C. substantia nigra 0% D. basal nuclei 0% Student Response E. pons 100% Score: 1/1 6. The brain center which controls much of the endocrine and sympathetic systems is the: Student Response Value A. thalamus 0% Student Response B. hypothalamus 100% C. substantia nigra 0% D. basal nuclei 0% E. pons 0% Score: 1/1 7. Repetitive movements of a skilled nature are facilitated in the: Student Response Value A. pre-motor cortex 0% Student Response B....
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.

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