Ch. 46 Flashcards Preview

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Flashcards in Ch. 46 Deck (43):
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Arteries
Functions + ex.

Carry blood away from heart
Ex. Aorta

1

Heart structure

Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary arteries
Aorta
Left atrium
Bicuspid valve (mitral)
Left ventricle
Aortic valve

2

Veins
Function+ ex.

Carry blood to heart
Ex. Vena cava

3

SA node (sinoatrial node)

Regulates contraction of heart aka. Pacemaker

4

Pulmonary circulation

To the lungs
Exchanges CO2 and O2

5

Systemic circulation

To the body

6

Coronary circulation

To the heart
(Atherosclerosis- blocked arteries in heart)

7

Renal circulation

To the kindney

8

Hepatic-portal circulation

To small intestines and liver

9

Lymphatic system

Returns fluids, filters pathogens

10

Lymph

Fluid found in blood, collects in tissue and must be returned to blood

11

Lymph vessels

Return lymph to blood vessels

12

Lymph nodes

Contain lymphocytes(WBCS) that help destroy pathogens

13

Components of blood

Plasma
Platelets
Erythrocytes (RBCS)
Leukocytes (WBCS)

14

Plasma

90% water
Vitamins, minerals, amino acids, glucose, proteins, hormones

15

Erythrocytes

No nucleus at maturity
Hemoglobin carries oxygen
Live about 120 days

16

Leukocytes

Much larger than RBCS
Phagocytes engulf and destroy pathogens
Some produce antibodies to destroy pathogens

17

Platelets

Clot when blood vessels is cut (stick to wound)
Fibrin (protein) forms sticky heads
RBC's stick to fibrin and make clot

18

Average human heart rate

70 per min

19

Blood types

Determined by antigen in surface of RBC's

20

Pleura

Membranes that produce a surfactant that reduces friction
Surrounds lungs

21

Antigen

Protein or carbohydrate that allows the body to be recognized normal or foreign substances

22

Diastole

Relaxation if ventricles

23

Type A

Has antigen A
Antibodies B in plasma
Take: O,A
Give: A, AB

24

Type B

Antigen B
Antibody A in plasma
Take- O, B
Give - B AB

25

Type O

No antigens
Antibodies A, B in plasma
Give to everyone
Take -O

26

Type AB

Antigen A and B
No antibodies
Take from everyone
Give to AB

27

Capillaries
Function +ex.

Between arteries and veins
Exchange nutrients, gases, wastes with cells

28

Inspiration- inhalation

Diaphragm moves down, rib muscles contract and move up, increased lung volume, pressure in the lungs decreases, air goes in

29

Rh

Rhesus monkey
Rh antigen on RBC
Rh+ has antigen
Rh- no antigen

30

Nasal cavity

Warms and moisten air

31

Pharynx

Throat

32

Expiration- exhalation

Opposite of inhalation
Diaphragm moves up

33

trachea

Rings of cartilage to stay open
Branches into bronchi

34

Epiglottis

Flap of cartilage that covers trachea when swallow
Keeps food/liquids from going down trachea

35

Larynx

Voice box

36

Alveoli

Air sacs in lungs
Surrounded by capillaries
Site of gas exchange

37

Hemoglobin

Contains 4 Fe atoms (each bind to one O2)

38

Gas exchange in lungs

Oxygen moves from high to low
Moves from alveoli to blood in capillaries

39

Average amount of blood in adult

5-6 quarts

40

Amount of water in adult

6 gal

41

% of capillaries open at rest

1%

42

Systol

Contraction of ventricle