Test 1

Question 1

The secretion of the adrena medulla act to supplement the affects of what?

Answer 1

Sympathetic stimulation

Question 2

Chemical substances secreted by cells into the extra cellular fluids that travel through the blood and regulate the metabolic function of other cells in the body are called what?

Answer 2

Hormones

Question 3

The hypothalamus is physically connected to the pituitary gland through what?

Answer 3

Infundibulum

Question 4

High aldosterone production leads to what?

Answer 4

Fluid retention
High blood pressure

Question 5

If blood calcium decrease how will the body maintain homeostasis?

Answer 5

Releasing parathyroid hormone

Question 6

Normal development of the immune response is due inpart to hormones produced by what?

Answer 6

Thymus gland

Question 7

If blood glucose levels are low how is homeostasis maintained?

Answer 7

by the pancreas releasing the hormone glucagon

Question 8

The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on?

Answer 8

The presence of appropriate receptors

Question 9

What chamber of the heart receives blood from lungs?

Answer 9

Left atrium

Question 10

What is the middle muscular layer of the heart is known as?

Answer 10

Myocardium

Question 11

In the cardiac cycle when the right ventricle pumps to expel blood to the pulmonary trunk which valve is forced closed by the pressure differential?

Answer 11

Tricuspid valve

Question 12

The plateau phase during the action potential of a contractile cardiac cell allows a heart chamber time to refill with blood T/F?

Answer 12

False

Question 13

Which artery helps supplies oxygenated blood to the heart?

Answer 13

Coronary arteries

Question 14

As the ventricles begin to contract all 4 heart valves are closed during the what phase?

Answer 14

Second phase ( isovolumetric contraction)

Question 15

Blood from the left ventricle will move to the _____ as a result of ventricular systole

Answer 15

Aorta

Question 16

If your EDV is 125 and your ESV is 50 what would your stroke volume be?

Answer 16

75 mL

Question 17

Place the following parts of the cardiac conduction system in order which they transmit the action potential

Answer 17

SA Node/ AV node/ Av bundle/ R/L bundle branches/ Purkinje fibers/ contractile cells of cardiac muscle tissue

Question 18

The P-wave on a ESG chart represents what?

Answer 18

The electrical depolarization of the amount of the heart

Question 19

What normally serves as a pacemaker of the entire heart

Answer 19

Sinus node

Question 20

What produces that lub dub sound?

Answer 20

The closure of the heart valves

Question 21

From superficial to deep tunic of a typical blood vessel

Answer 21

Tunic Adventitia, Tunic media, Tunica Intima

Question 22

The outward force that blood exerts on the walls of blood vessel is?

Answer 22

Blood pressure

Question 23

What decreases peripheral resistance?

Answer 23

Vasodilation

Question 24

Which factor is not needed to calculate mean arterial pressure?

Answer 24

CVP and or SVR. What is needed is systolic blood pressure and diastolic

Question 25

Which capillaries are your largest leakiest ones that allow for the exchange of large substances in cells?

Answer 25

Sinusoidal capillaries

Question 26

If blood pressure decreases which one of the following mechanisms will be used by the body help raise blood pressure and maintain homeostasis?

Answer 26

Baroreceptor (Negative feedback loop)

Question 27

What stimulus do chemoreceptors detect?

Answer 27

Oxygen and carbon dioxide, blood pH levels, and substances related to taste and smell

Question 28

What pressure pulls water into the capillaries ?

Answer 28

Osmotic pressure

Question 29

Damage to the epsternal iliac artery will affect delivery of blood to the?

Answer 29

Legs and feet, as well as lower abdominal wall and groin

Question 29

Main feeding branch to 4 arteries

Answer 29

The aorta

Question 30

Most veins below the diaphragm drain where?

Answer 30

Inferior vena cava

Question 31

This vein drains blood from the liver and empties into inferior vena cava?

Answer 31

Hepatic veins

Question 32

Which branch of the nervous system promotes increased peripheral resistance and increased pressure

Answer 32

Sympathetic nervous system

Question 33

Which of the following vessels have the lowest blood pressure?

Answer 33

Veins and venules

Question 34

Case study 1: The most common cause of abnormally elevated thyroid hormone levels?

Answer 34

Graves disease

Question 35

Case study 1: Why does Crista have low TSH levels while her thyroid hormones are elevated?

Answer 35

Her elevated T3 and T4 levels suppress TSH production

Question 36

Case study 1: The endocrine gland thats probably malfunctioning if a person has a high metabolic rate is the thyroid? T/F?

Answer 36

True

Question 37

Case study 1:Why does Crista thyroid disease cause elevated blood pressure?

Answer 37

due to how an overactive or underactive thyroid affects the heart and blood vessels

Question 38

Case study 2: Based on general understanding of a normal heart in A&P what kind of blood would normally be present in the left ventricle of the heart?

Answer 38

Oxygenated blood

Question 39

Case study 2: What chamber of the heart would normally encounter more peripheral resistance from the blood vessel it supplies?

Answer 39

The left ventricle

Question 40

Case study 2: The defect in Caleb's heart allows blood to mix between the two ventricular chambers due to this defect in which direction would you expect the blood to move in your ventricular systole?

Answer 40

Left to right

Question 41

Case study 2: What other abnormalities are likely to show up on Calebs echocardial gram?

Answer 41

Increased pulmonary blood flow, right ventricular hypertrophy