Next Lecture Quiz Oct 30-

Question 1

What aids in blood clotting?

Answer 1

platelets (platelets also help in healing, etc)

Question 2

What is thrombopoiesis

Answer 2

Production of platelets.

Question 3

What is hematopoiesis

Answer 3

forming blood cells

Question 4

how do megakaryocytes form platelets in the blood?

Answer 4

tendrills sneak into the blood stream and break off

Question 5

What is hemophilia

Answer 5

the love of bleeding. It’s sex linked

Question 6

What is thrombosis?

Answer 6

abnormal clotting in an unbroken blood vessel

Question 7

What is thrombus

Answer 7

the blood clot itself

Question 8

Embolism?

Answer 8

part of a clot breaks free and travels. u call that clot the embolus.

Question 9

What is the path of the pulmonary circuit?

Answer 9

Blood flows from right heart to lungs. Gas exchange in the lungs.

Question 10

Path of systemic circuit

Answer 10

blood flows from left heart to all body. gas exchange in organs

Question 11

Where is the pericardium and what is it’s job?

Answer 11

membrane around the heart. Restricts heart movement so it is contained

Question 12

What are the two layers of the pericardium?

Answer 12

fibrous pericardium (tough outer sac) and serous pericardium/epicardium (visceral layer (means touching the organ)). Pericardial cavity is the space between the layers containing serous fluid.

Question 13

unique structures of cardiac muscles

Answer 13

Desmosomes (strong velcro) keeping the intercalated discs together, Gap junctions sharing the electric potentials

Question 14

What are the three layers of the heart wall

Answer 14

Epicardium (visceral layer), Myocardium (cardiac muscle, thickest layer), endocardium (internal surface of hear chambers)

Question 15

What does the coronary sulcus do?

Answer 15

it separates the atria and the ventricles. Border

Question 16

How many important arteries are there in the heart?

Answer 16

6

Question 17

Characteristics of the left and right atria

Answer 17

thin walls, receiving chambers, auricle ear like extensions, seperated by interatrial septum, pectinate muscles (ridge like)

Question 18

Characteristics of left and right ventricles

Answer 18

thick walls, separated by interventricular septum, pumping chambers, trabeculae carnie (internal ridges), papillary muscles connected to chorae tenineae (heart strings)

Question 19

what does venous blood mean

Answer 19

poorly oxygenated

Question 20

Where is the conus arteriosus

Answer 20

its the valve by the pulmonary trunk that looks like a butt

Question 21

What are the parts of the conduction system?

Answer 21

Sinoatrial node(SA) (pacemaker. near right atrium), AV node(by the AV valve ), AV bundle (goes across pulminary valve and down the interventricular tissue), purkinje fibers (nerve like processes that travel up the ventricular myocardium).

Question 22

Where are the cario centers in the brain?

Answer 22

medulla oblongata

Question 23

What two nodes does the sympathetic cardiac nerves and vagus nerve interact with

Answer 23

SA node and AV node

Question 24

What is the cardiac cycle

Answer 24

one complete cycle of contraction and relaxation. Measured by an ECG. Two phases are systole (contraction) and diastole (relaxation).

Question 25

When will you have higher systolic pressure

Answer 25

after heart has contracted

Question 26

Mitral valve prolapse

Answer 26

a valve cusp lets blood flow back making the heart less efficient

Question 27

Valvular stenosis

Answer 27

cusps stiffen with scar tissue. it results in rheumatic fever

Question 28

which vessel is efferent?

Answer 28

arteries

Question 29

arteries

Answer 29

Efferent, resistance vessels (high pressure or low pressure)

Question 29

Veins

Answer 29

afferent, capacitance vessels (hold most of blodo)

Question 30

Capillaries

Answer 30

tiny vessels connecting small arteries to small veins

Question 31

What does the tunica media contain

Answer 31

muscles (vasoconstriction and vasodilation), elastin, collagen

Question 32

tunica externa

Answer 32

loose connective tissue anchoring it to it's surroundings

Question 33

tunica interna

Answer 33

simple squamous endothelium, slick lining, selectively permeable

Question 34

which vessel has elastic lamina?

Answer 34

artery

Question 35

What are capillaries made of

Answer 35

two layers: endothelium and basement membrane

Question 36

Three categories of arteries

Answer 36

conducting (biggest), distributing (midsized), resistance (smalest)

Question 37

Receptors in the arteries

Answer 37

Baroreceptor (send signals to the vasomotor and cardiac center of brain. Respond to BP with change in vessel or heart rate), chemoreceptors (send signals to the respiratory centers of brain. pH, Co2, O2)

Question 38

Continuous capillary

Answer 38

small intercellular clefts present but mostly closed off

Question 39

Fenestrated capillaries

Answer 39

filtrated pores facilitating exchange throughout the wall

Question 40

sinusoid (discontinous capillary

Answer 40

irregular, wide gaps

Question 41

capillary exchange (things going in and out) methods.

Answer 41

FIltration (through the pores. Sodium, hydrogen, any ion), transcytosis (through the cell wall. Large hormone), Diffusion (gas exchange through endothelial cells), Intercellular clefts (glucose)

Question 42

How does blood switch from being efferent to afferent.?

Answer 42

capillary beds

Question 43

Functions of the lymphatic system

Answer 43

recover fluid lost from blood capillaries (lymphatic vessels), immunity, absorb lipids from small intestines

Question 44

What is lymph

Answer 44

colorless fluid. similar to plasma but without proteins. fluid from capillaries that is taken up by lymphatic vessels

Question 45

What is chyle?

Answer 45

lymph that comes from the intestine (high in fat)

Question 46

the top right section of the body brings lymp where?

Answer 46

right lymphatic duct. Everywhere else in the body it's brougth to the thoracic duct.

Question 47

Peyer patches

Answer 47

lymphatic nodules in the ileum

Question 48

MALT

Answer 48

it's in passages of respiratory, digestive, reproductive, and urinary tracts

Question 49

Function of spleen

Answer 49

highly vascular. Red pulp and white pulp. red blood cell graveyard cuz they lyse when they go through the small areas