Circulation Questions and Answers

A C E D B he above figure represents an electrocardiogram or ECG Use this figure to answer the following questions a Which ECG component A B C D or E represents the time required for the electrical impulse to travel f the AV node b Does the ECG provide information on valve function YES or NO

A B 2 points Save The picture above is the base of a sheep s heart that has been previously dissected Two major vessels are labeled A and B Use this picture to answer the following questions Be sure to use the appropriate scientific names for all structure for question a and the terms given as the answer choices for question b a What is the name of the remnant of the ductus arteriosum that once connected vessels A and B b What type of blood is transported by vessel B oxygenated or deoxygenated

O Increased secretion of mucous 10 1 point Which of the following mutations would prevent neutrophils PMNs from migrating from the blood stream to infected tissues Select all that apply 0000 A mutation in junctions between endothelial cells that makes them more permeable A mutation in cytokine receptors on endothelial cells that renders them non functional A mutation that changes the pH of neutrophil lysosomes A mutation in adhesion molecules or selectins on blood vessel walls that prevents neutrophil binding 11 1 point A typical IgG antibody Select all that apply Has an Fab region that binds to antigens Has 2 chains one heavy chain and one light chain Is Y shaped Has an Fc region that binds to phagocyte

Are the characters interesting You can answer yes or no

Question marks and exclamation points should be placed inside the quotation marks of a short quote if Select one O the author wants to emphasize the punctuation O they are part of the quoted text O the author wants to ask a question or show excitement O they are part of your text

estion 6 Consider this passage from The Phantom of the Opera by Gaston Leroux Which of the following BEST shows that Carlotta is fearless Select one O O O She thought herself at that time the victim of a thousand jealous attempts and went about saying that she had a secret enemy who had sworn to ruin her We shall see she said adding a few oaths in her native Spanish with a very determined air The truth is that if there was a cabal it was led by Carlotta herself against poor Christine who had no suspicion of it When Carlotta heard of the astounding reception bestowed upon her understudy she was at once cured of an incipient attack of bronchitis and a bad fit of sulking against the management and lost the slightest inclination to shirk her duties Carlotta who had a small house of her own in the Rue du Faubourg St Honore rang for her maid who brought her letters to her bed Among them was an anonymous missive written in red ink in a hesitating clumsy hand which ran If you appear to night you must be prepared for a great misfortune at the moment when you open your mouth to sing a misfortune worse than death The letter took away Carlotta s appetite for breakfast She pushed back her chocolate sat up in bed and thought hard It was not the first letter of the kind which she had received but she never had one couched in such threatening terms She thought herself at that time the victim of a thousand jealous attempts and went about saying that she had a secret enemy who had sworn to ruin her She pretended that a wicked plot was being hatched against her a cabal which would come to a head one of those days but she added that she was not the woman to be intimidated The truth is that if there was a cabal it was led by Carlotta herself against poor Christine who had no suspicion of it Carlotta had never forgiven Christine for the triumph which she had achieved when taking her place at a moment s notice When Carlotta heard of the astounding reception bestowed upon her understudy she was at once cured of an incipient attack of bronchitis and a bad fit of sulking against the management and lost the slightest inclination to shirk her duties From that time she worked with all her might to smother her rival enlisting the services of influential friends to persuade the managers not to give Christine an opportunity for a fresh triumph Certain newspapers which had begun to extol the talent of Christine now interested themselves only in the fame of Carlotta Lastly in the theater itself the celebrated

A cross section of a heart from a 45 year old African American male with long standing hypertension who died of a stroke is most likely to show which of following adaptive changes Select one OA Hypertrophy B Hyperplasia OC Dysplasia OD Metaplasia

Supplies a lower limb Major supply to cerebral cortex Branch of abdominal aorta that supplies liver stomach and spleen Gives rise to right common carotid and right subclavian artery Combine to become the basilar artery External iliac artery Brachiocephalic trunk Celiac trunk Vertebral arteries Internal carotid artery

layer s is are responsible for contraction and recoil a Tunica intima b Tunica media c Tunica adventitia d Tunica intima and adventitia Question 2 Structures that cast a shadow a are always directly in front of another structure b either reflect or attenuate the sound beam c show acoustic enhancement d are nonattenuating Question 3 Which anatomic area is NOT demonstrated in a coronal scanning plane image a Medial b Anterior c Inferior

12 13 14 Arterioles Conducting arteries Muscular arteries Elastic arteries 1 point The aorta receives the full force of blood exiting the heart during ventricular systole Which of the following statements best describes the adap anatomy of the aorta Elastic fibers are extensive in the tunica media of the aorta and dampen the pulse pressure generated by the heart The tunica external of the aorta is nearly absent compared to other vessels Smooth muscle is relatively thin in the aorta to increase lumen size and systemic blood flow The aorta s tunica media is thick with dense regular connective tissue to withstand the blood s pressure 1 point Which of the choices below explains why the arterioles are known as resistance vessels The contraction and relaxation of the smooth muscle in their walls can change their diameter Their prime function is the exchange of nutrients and wastes between the blood and tissue cells They distribute blood to various parts of the body They contain a large quantity of elastic tissue 1 point Due to the branching of arteries the type of arteries that would be most numerous would be Arterioles Muscular arteries

2 Match the parts of the Ventricular depolarization Ventricular repolarization Atrial depolarization in the hear Closure of the heart valves Friction of blood against the chamber walls Excitation of the sinoatrial SA node Time s 0 P Q Interval 1 point Normal heart sounds are caused by which of the following events 0 2 S T D Segment 0 4 Q T Interval 0 6 E B A C D 0 8 T

Venous valves are responsible for a channeling blood toward the heart O b preventing blood from re entering a ventricle D O c regulating blood pressure in veins O d preventing anterograde flow O e channeling blood away from the heart Clear my choice Ti

Choose the correct sequence of current flow through the heart wall O a AV node SA node Purkinje fibers AV bundle of His right and left bundle branches O b AV node Purkinje fibers AV node AV bundle of His right and left bundle branches O c Purkinje fibers AV node AV bundle of His right and left bundle branches SA node O d SA node AV node AV bundle of His right and left bundle branches Purkinje fibers O e SA node Purkinje fibers AV node AV bundle of His right and left bundle branches

Which kind of vessel is also called a resistance vessel O a artery O b capillary O c venule O d vein O e arteriole

Resistance is a force that O a acts with pressure to move blood along a vessel O b increases blood flow O c is always higher than blood pressure O d decreases blood flow Oe never changes in a blood vessel

The largest artery in the body is O a Common carotid O b Axillary O c Aorta O d Pulmonary

The force due to presence of plasma proteins pulls fluid into capillaries from interstitial spaces is a Interstitial fluid osmotic pressure Ob Blood colloid osmotic pressure OC Net filtration pressure d Blood hydrostatic pressure

Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of Oa Veins O b Arteries O c Capillaries O d Arterioles

In the autonomic reflex that regulates blood pressure the type of sensory receptors involvedores O a Thermoreceptors O b Baroreceptors O c Chemoreceptors O d Propioceptors

Blood ejected from the right ventricle flows into the Posterior vena cava O b Pulmonary arteries Inferior vena cava d Pulmonary veins

Vascular resistance depends on all of the following except O a Heart rate O b Oc Total blood vessel length O d Blood viscosity Size of the blood vessel lumen

Polycythemia decreases the viscosity of blood thus increasing blood pressure True O b False

Milking refers to skeletal muscle contractions that drive venous blood toward O a Heart Ob Breasts O c Legs O d Lungs

Blood cells can enter the bloodstream from bone marrow through a Sinusoids Ob Fenestrated capillaries Oc Clefts d Continuous capillaries

Milking refers to skeletal muscle contractions that drive venous blood toward the lege O a False O b True

Which of the following chemicals does not help regulate blood pressure O a Angiotensin II O b ADH O c Carbonic acid O d Atrial natriuretic peptide

The main center for regulation of systemic vascular resistance is the vasomotor center in the brain stem O a True O b False

On a normal ECG ventricular depolarization occurs during the O a S T segment O b QRS complex OC Twave Od P Q interval

Multiple choice Choose only one answer Microscopically molds are identified by O long filaments hyphae O Gram stain reaction colony characteristics round budding cells

What is viral host range all of the types of viruses that can infect human cells all DNA viruses the types of cells that a virus can infect all RNA viruses

The nucleic acid of a virus is O DNA only ORNA only O both DNA and RNA either DNA or RNA

Antigenic shift results in minor changes in the H and N spikes on the surface of the influenza virus True Cal

A viral disease like chickenpox that can remain dormant in the body are called O provirus virulent O subclinical O latent

How do enveloped viruses leave a host cell O budding O endocytosis O fusion O host cell bursts lysis

A provirus is in a host cell for the life of that cell while a prophage can cut itself out of the host s chromosome and initiate the lytic cycle True O False

If a virus incorporates its DNA into that of the host s chromosome it is called a an O viriod O provirus if it is an animal virus prophage if it is a bacteriophage O retrovirus

What is the correct order of steps of animal virus replication O entry attachment uncoating biosynthesis maturation release O attachment uncoating entry biosynthesis maturation release O entry attachment uncoating maturation biosynthesis release attachment entry uncoating biosynthesis maturation release

What step in animal virus replication does not occur in the replication cycle of a bacteriophage O penetration O attachment O biosynthesis

If the host cell remains alive then a bacteriophage is replicating via O the lysogenic cycle O either the lytic or the lysogenic cycle O the lytic cyle O neither lytic nor lysogenic cycles is correct

The protein coat surrounding the viral nucleic acid is called the Ospike O envelope O virion capsid

What is a virion O complete infectious viral particl infectious piece of RNA infectious protein Oprotein coat around a virus

U

cos1110 sin420 desinin e iti a a dakilerden B 3 C 2 hangisidir D 2 3

Muscles paper 10 3390 ijms222111874 10 points https www mdpi com 1422 0067 22 21 11874 1 Name at least 5 changes in the shape or activity of the heart that is caused by DM1 2 The gene SCN5A which encodes the a subunit of the cardiac voltage gated Na channel often mentioned as a possible cause for DM1 phenotypes Why is Na important to normal cardiac function

What Are Some Physical Changes and Health Issues in Late Adulthood

TJ and Marie are a young married couple He takes out the trash mows the lawn and takes care of car maintenance She does the bulk of the remaining chores especially in the house like the laundry dishes giving the kids a bath etc Based on current research TJ and Marie are most likely to be of what ethnicity European American White O African American Black O Latino a x American Asian American

What Are Some Physical Changes That Occur in Young Adulthood

Prompt Discuss how the 1950s version of the traditional marriage was more a myth than a reality In what ways do we still see this myth perpetuated in popular films and TV Requirements In no less than 100 words explain your thoughts regarding the prompt No formal references are required though you can feel free to mention where you learned your facts

u finna keep this same energy for th summer y we gotta wait till then what happens from now till then is up you

Looking at figure 13 12 which type of mechanoreceptor is found in the dermal papilla free nerve endings Merkel cell fibers tactile corpuscles