Ch 15 Pt. 1

Question 1

Nervous System

Answer 1

CNS- brain and spinal cord
PNS- everything else

Question 2

Efferent division

Answer 2

Somatic nervous system: voluntary (skeletal muscle)
Autonomic Nervous system: involuntary (cardiac muscle, smooth muscle)

Question 3

The heart Review:

Answer 3

-needed for blood flow
-2/3 lies on left side of chest cavity
-4 chambers: right left atria, right left ventricles
-right and left side separated by inter ventricular septum
-around 6000L output/day
Cardiac muscle (myocardium) -striated, involuntary

Question 4

Intercalated discs:

Answer 4

Complex junctions connecting striations of cardiac muscle
-allows electrical activity to travel between cardiac muscle cells

Question 5

Simplified Blood Flow

Answer 5

Body, Right atrium, Right ventricle, lungs, left atrium, left ventricle

Question 6

Ventricular Diastole

Answer 6

Ventricles relax and fill with blood

Question 7

Ventricular Systole

Answer 7

Ventricles contract and push blood through

Question 8

Arterial System Components

Answer 8

Aorta, arteries, arterioles
-all carry oxygenated blood, except pulmonary artery

Question 9

Capillaries Review

Answer 9

-carry blood oxygenated and deoxygenated blood

Question 10

Venous System Review

Answer 10

-venues, veins, inferior and superior vena cava
-all carry deoxygenated blood except pulmonary vein

Question 11

Pulmonary Arteries carry:

Answer 11

Deoxygenated blood to the lungs

Question 12

Pulmonary veins carry:

Answer 12

Oxygenated blood to heart

Question 13

Full Blood Flow Review: with deoxy and oxygenated

Answer 13

1. Sup/ Inf vena cava (de)
2. Right atrium (de)
3. Right AV valve (tricuspid) (de)
4. Right Ventricle (de)
5. Pulmonary Semi-Lunar (de)
6. Pulmonary artery (de)
7. Lungs (de to ox)
8. Pulmonary Vein (ox)
9. Left Atrium (ox)
10. Left AV valve (bicuspid/ mitral) (ox)
11. Left Ventricle (ox)
12. Aortic Semi Lunar (ox)
13. Aorta (ox)
14. Arteries (ox)
15. Capillaries (ox to de)
16. Capillaries (de)
17. Veins (de) -back to sup/ inf vena cava

Question 14

Heart Valves Review

Answer 14

Valves open and close as heart contracts and relaxes
-allows blood to flow into ventricles and atria at alternate times
-allows one way flow into and out of ventricles (prevents backflow)
-malfunction of valves can affect heart function

Question 15

Asystole

Answer 15

No heartbeat (ded)

Question 16

The valve exiting the right ventricles

Answer 16

Pulmonary semi lunar valve

Question 17

Valve located between left atrium and left ventricles?

Answer 17

Bicuspid/ mitral valve (left av)

Question 18

Right AV valve is known as:

Answer 18

Tricuspid valve

Question 19

Atrial chambers serve as what pumps?

Answer 19

Primer pumps to receive and store blood during ventricular contraction

Question 20

Right ventricle pumps blood via the what into the what?

Answer 20

Pulmonary Semi Lunar valve into the pulmonary artery

Question 21

Left ventricle pumps blood via the what into the what

Answer 21

Aortic Semi Lunar Valve into the Aorta

Question 22

Left ventricle pumps blood via the what into the what

Answer 22

Aortic Semi Lunar Valve into the Aorta