### Neurotransmitter Systems and Neurobiology#### Question 15**What is meant by divergence in neurotransmitter systems?**- a. The ability of several transmitters to activate the same effector.- b. The combined effect of one transmitter on more than one receptor and several transmitters on one effector.- c. The ability of one transmitter to activate more than one subtype of receptor.- d. The ability of several transmitters to activate several different effectors.#### Question 16**Which two pairs of arteries supply blood to the brain?**- a. Vertebral and basilar arteries.- b. Vertebral and internal carotid arteries.- c. Two internal carotid arteries.- d. Anterior cerebral and posterior cerebral arteries.#### Question 17**What is neurulation?**- a. The process by which structures become complex and functionally specialized during development.- b. The process by which the neural plate becomes the neural tube.- c. The process by which the germ layers form in the early embryo.- d. The process by which somites develop into skeletal muscle.---**Note for Educators:** This section provides a basic understanding of how neurotransmitter systems function, the anatomy relevant to cerebral circulation, and developmental processes like neurulation. For further reading and resources, please refer to the supplementary materials provided in your course syllabus.**Graph/Diagram Section:**There are no graphs or diagrams included in this section.

There is triggering of the presynaptic neuron by the action potential causing it to release the…

Answered: QUESTION 15 What is meant by divergence…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question 27 10 pts Long Answer Essay You are seeing a patient in your office with a primary complaint of excessive daytime sleepiness. Their spouse reports that they snore loudly and often wake up gasping for air. What type of sleep disorder do you suspect they are experiencing (be specific)? What type of diagnostic work up needs to be done? Name one treatment option to address this patient's symptoms. Edit View Insert Format Tools Table |BIUA - 12pt v Paragraph v
QUESTION 7 Stretch receptors in the heart above the heart that monitor blood pressure would be considered. A. Receptor or sensor OB. Control center OC. Effector OD. Processing center
QUESTION 13 Which of these is a 2nd messenger? OBa O CAMP O Calmodulin OCalcitonin
Question 28 After the depolarization phase of an action potential, the resting potential is restored by ___ A brief inhibition of the sodium-potassium pump The opening of more voltage-gated sodium channels O A decrease in the membrane's permeability to potassium and chloride ions O Voltage-gated potassium channels opening and sodium channels inactivating Question 29 80 F3 F4 F5 F7 FB
Question 29 0.8 / 4 points Which of the following types of ion channels are involved in propagating an action potential? **Mark all that apply** leaky Na+ channels ligand-gated K+ channels voltage-gated K+ channels voltage-gated Ca+2 channels voltage-gated Na+ channels
Question 16
QUESTION 19 Receptor-mediated signaling might affect which of the following cellular processes? OA. Cell growth OB. Cell cycle OC. Transcription OD. Apoptosis O E. All of the above QUESTION 20 Which of the following does NOT function as a second messenger in cell signaling pathways? OA cholesterol OB. CAMP O C. IP3 O D. Calcium ions (Ca2+) QUESTION 21 In the insulin-signaling cascade, PTEN removes a phosphate group from the membrane lipid PIP3 to form PIP2. What type of enzyme is PTEN? OA. Polymerase OB. Phosphatase OC. Kinase OD. Lipase O E. Ligase
Question 24 Which of the following is an effect of epinephrine? OA. Enhanced pain sensation B. Slowed heart rate OC. Increased GLUT4 cell surface expression in skeletal muscle D. Increased blood flow to the Gl E. Increase liver gluconeogenesis
QUESTION 6 In a voltage clamp: O A. A constant current across the membrane is maintained in order to counter balance changes in membrane potential. O B. A variable voltage is applied across the membrane in order to maintain a constant membrane potential O C.Avariable current is applied across the cell membrane in response to changes in the ion concentration outside the cell. O D.Changes in current applied to a membrane in order to maintain a constant voltage represent the flow of ions through channels in the membrane O E. both A. and C. O F. Both B. and D.
Question 8 Which of the following is true of nerve impulse conduction? O Saltatory conduction occurs on unmyelinated axons O Continuous conduction is slower than salutatory conduction O Continuous conduction requires spatial summation only O Saltatory conduction requires temporal summation only < Previous
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QUESTION 24 In relation to other retinal ganglion cells, the M ganglion cells that make up the magnocellular pathway have A. a larger receptive field and a faster-conducting axon. B. a smaller receptive field, a slower-conducting axon, and transient responses. C. a faster-conducting axon, lower spatial resolution, and better color sensitivity. D. finer spatial resolution and better color sensitivity. E. All of the above are true F. Both A and C are true.

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