QUESTION 12 As your body becomes cold cells in your skin determine the change and send a signal to the hypothalamus in your brain. The hypothalamus then sends a signal to your muscles to induce shivering and blood vessels near the skin to vasoconstrict. The hypothalamus is the: O Sensor Receptor Control center O Effector

QUESTION 4 Neurotransmitters produce their effects more slowly quickly QUESTION 5 compared to hormones. If calcium ions are removed from the fluid surrounding a pre-synaptic neuron, then the effects of that neuron's neurotransmitter will be: enhanced diminished

Question 27 The chamber in the heart with the thickest muscular wall is the: O all chambers have the same thickness of the muscular wall O left atrium O right atrium O right ventricle O left ventricle nts/1/external_tools/13633?launch_type=global.. MacBook Air F8 F9 F6 F7 F4 F5 F3 @ #3 % & 3. 4 7 W T Y H S C- V * 00 B

QUESTION 20 Action potentials are -signals--neurons OA Chemical, between OB. Chemical, within OC. Electrical, within D. Electrical, between O

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QUESTION 5 At the beginning of the falling phase, the membrane potential is positive. This is because in the previous phase: Na+ entered the cell Na+ left the cell K+ entered the cell K+ left the cell

QUESTION 10 Which of the following is an example of positive feedback regulation in the body? A Blood clotting mechanism OB. Regulation of temperature OC. Regulation of heart rate OD Regulation of blood pressure

QUESTION 1 Which of the following tissues would receive less blood flow during exercise: Brain Skeletal muscles Kidneys Skin All tissues receive more blood during exercise OO O O O

Question 66 When a cell membrane potential shifts from -70mV to -90mV we say the membrane has: O depolarized O repolarized O hyperpolarized O polarized A Moving to another question will save this response. 17 stv MacBook Air DII F2 F3 F4 F5 F6 F7 F8 @ %23 2$ へ 7 8 W R T Y D F C ンU) つ B LE # 3

Question 26 A new class of drug has been developed for patients with hyperglycemia type 2 diabetes; it works by acting as an agonist for the GLP-1 receptor, which reduces blood glucose levels. How does this new drug reduce the concentration of blood glucose? O A. Decreasing renal reabsorption of glucose OB. Long-loop negative feedback of ACTH OC. Increasing insulin release OD. Decreasing glucagon release OE. Inhibiting cortisol synthesis