On which of these blood vessels would you find alpha-1 receptors (select all that apply)? O Coronary vessels O Enteric (digestive tract) vessels Renal vessels O Hepatic (liver) vessels O None of these vessels would present alpha-1 receptors
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- On which of these blood vessels would you find a high proportion of beta-2 receptors? (Select all that apply). O Coronary vessels O Enteric (digestive tract) vessels Renal vessels O Hepatic (liver) vessels O None of these vessels would present beta-2 receptorsThis photo shows a child receiving an oral vaccine againstpolio, a disease caused by a virus that infects neurons. Giventhat the body cannot readily replace most neurons, why isit important that a polio vaccine stimulate not only acell-mediated response but also a humoral response?When the blood pressure is high, how will the myogenic reflex help to bring the blood pressure back to normal? (circle all the apply options) A. potassium channels open helping potassium to rush into the cellB. vasoconstriction takes placeC. vasodilation take placeD. stretch receptors in the afferent arterioles are activatedE. calcium channels on smooth muscle opens
- large amount of blood intoyour heart, wlo the dolood. passing throuah heart can quiclly run dut of axya en stop beating baislemoin the LAD your +Congestive heart failure (CHF) is an inability of the heart to pump sufficient blood to the body. One sign of CHF is excess fluid in the tissue spaces, known as edema. Describe the location of the edema if the left side of the heart fails, compared to the 16. location of edema if the right side of the heart fails. toFill in the following blanks (a - f) regarding the Baroreceptor Reflex Control: The baroreceptor reflex control is a negative feedback loop. If the patient is hypotensive, they are experiencing a decrease in blood pressure detected by (a.)_ located in the aortic and carotid bodies. The afferent pathways include the (b.)_ nerve and the (c.)__ nerve. These synapse at the cardioregulatory and vasomotor integration centers located in the (d.)_ These centers will cause the heart rate to (e.)(increase/decrease) and blood vessels to (f.) (vasodilate/vasocontrict). For the toolbar press ALT+510 (BC) or ALTHEN±+510/MadNodal (conductile) cells in the heart differ from other myocardiocytes (contractile cells) in that nodal cells have_____. A channels that allow Na+ to slowly leak in between action potentials B gap junctions while other myocardiocytes do not C more rapid depolarization in their action potentials due to voltage-gated Na+ channels D action potentials without plateau phases because they lack Ca+2 channels
- My cardiologist used a stethoscope to listen to my hear to detect if I have a heart murmur. This is called O Offaction O Auscultation O Palpation OInspectionYou’re flowing around the circulatory system and you come across several nice but directionallychallenged travelers that have lost their way. They know where they are and where they need to go, butthey don’t know how to get there. Give basic directions using major vessels (arterial or venous) to get themwhere they need to go.a. Fred Blood Cell needs to get from the left thigh to the right atrium.b. Harry the Hormone wants to visit his buddies in the anterior pituitary, but he doesn’t knowhow to get there from the aorta.c. Eric the Erythrocyte needs to get from the left ventricle to the left deltoid.d. Betty White Blood Cell is in the right lung but has a hot date with a pathogen in the rightforearm.A patient lost a lot of blood during surgery and his bloodpressure dropped from 120/80 to 90/50. The doctor told her that her blood pressure with return to normal by negative feed from the endocrine system and the nervous system. 1. Describe the role of the parasympathetic nervous system in response to the low blood pressure . (Receptors, Control Center, Effectors)
- How would a decrease in the concentration of iron in the blood affect the process of hemostasis? Select one: a. There would be no effect O b. Clotting would proceed more slowly Oc. Clotting would proceed more rapidly O d. Fibrinogen would not be formed On a myelinated axon, action potential generates on: Select one: a. the nodes of Ranvier O b. synaptiC vesidles C. synaptic bulbs O d. the myelin sheets The portion of a nerve cell which contains the nucleus and most of the metabolic machinery is called the: Select one: O a. Cell body O b. Synapse Oc Dendrites O d. Axon 9:21 PM A O 4) a ENG 20-Apr-2021Which of the following could be the correct pathway of travel for a blood cell currently in the brachiocephalic artery? O A. right arm radial artery>right arm cephalic vein> back to heart O B. left arm radial artery>left arm cephalic vein>back to heart O C. right common carotid artery>internal jugular vein>back to heart O D. left common carotid artery>internal jugular vein>back to heart O E. all of the above are possible F. none of the above a possible G. both A and C would be possible O H. both B and D would be possible O I. both A and B would be possible O J. both C and D would be possibleWhich is the main structural feature that distinguishes elastic arteries from muscular arteries? Answers A -E A Elastic arteries have a significantly higher quantity of elastic fibres in the tunica media than muscular arteries R Muscular arteries do not have any elastic fibres, whereas elastic arteries are rich in elastic fibres Muscular arteries have muscular cells only in the media, whereas elastic arteries do not have any Muscular arteries have muscular cells throughout their wall, whereas elastic arteries do not have any E Muscular arteries have vasa vasorum, elastic arteries do not