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Flashcards in Practical 1 Deck (42)
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1

erythrocytes

red blood cells: picks up oxygen from lungs and delivers elsewhere

2

neutrophil

granulocytes: most abundant WBC: releases antimicrobial chemicals

3

eosinophil

granulocytes: reddish pink: release enzymes that weaken/destroy parasites

4

basophil

granulocytes: secrete histamine, increasing blood flow to a tissue

5

lymphocyte

agranulocytes: secrete antibodies, destroy cancer cells

6

monocyte-

agranulocytes: phagocytize pathogens

7

pericardial sac

outer wall- tough superficial fibrous layer of dense irregular connective tissue

8

epicardium

serous membrane of the external heart surface

9

endocardium

lines interior of heart chamber

10

myocardium

between the two- composed of cardiac muscle. thickest layer

11

apex

bottome left lower end

12

left and right atria

2 superior chambers, receiving chambers for blood returning to the heart by great veins

13

auricles

ear like flap. pumps blood into the ventricles. each atrium has one

14

left and right ventricle

2 inferior chambers. pumps that eject blood into the arteries and keeps it flowing around the body

15

coronary sulcus

encircles the heart near the base and separates the atria anove the ventricles below

16

interatrial septum

septum that separates the atria

17

interventricular septum

thick muscle wall that separates the ventricles

18

tricuspid valve

right AV valve (3 cusps)

19

bicuspid valve

left AV valve -2 cusps.(separates left and right

20

chordae tendineae

connects to the papillary muscles

21

papillary muscles

governs the timing of electrical excitation of the papillary muscles

22

pulmonary semilunar valve

controls the opening from the right ventricle into the pulmonary trunk

23

aortic semilunar valve

valve the separates the left ventricle and the aorta

24

fossa ovalis

artifact from when the fetus received blood from the mother

25

aorta

largest artery carrying blood (oxygenated) away from the heart

26

pulmonary trunk (and arteries)

arteries carrying blood (deoxygenated) to the lungs

27

pulmonary veins

veins carrying blood (oxygenated) from the lungs to the heart to be pumped

28

inferior vena cava

one of 2 major veins taking blood (deoxygenated into the heart)

29

superior vena cava

one of 2 major veins taking blood (deoxygenated) into the heart.

30

superior vena cava

largest vein, feeding into the right atrium. superior to the heart