Physiology Flashcards Preview

Part 1 Board Review > Physiology > Flashcards

Flashcards in Physiology Deck (58):
1

M/C cause of CHF

Essential hypertension

2

2nd M/C cause of CHF

aortic stenosis

3

M/C cause of R-sided heart failure

L-sided heart failure

4

Lung condition assoc. w/ R-sided heart failure

Cor Pulmonale

5

Condition seen in early stages of CHF

Exertional dyspnea

6

Condition seen in later stages of CHF

Pitting edema of legs

7

M/C cause of liver failure

Alcoholism

8

1st heart sound

AV valves closing during isometric contraction

9

2nd heart sound

semilunar valves closing

10

3rd heart sound

Ventricular filling. Normal in children. Abnormal in adults

11

4th heart sound

Ventricular filling, heard in diastole. Normal in athletes, abnormal in others

12

Name the 4 different types of murmurs

ARMS & PRTS
Aortic Regurgitation
Mitral Stenosis
Pulmonic Regurgitation
Tricuspid Stenosis

13

What is the largest layer of a artery?

Tunica Muscularis

14

Blood vessels that irrigate other blood vessels?

vaso varum

15

Greatest resistance to pressure is in what type of blood vessels?

Arterioles

16

Greatest cross-sectional area is in what type of blood vessels?

Capillaries

17

Coronary arteries dilate/constrict due to what?

Metabolic demand

18

What is normal blood pH?

7.35-7.45

19

What is the tetrology of Fallot?

(DRIP)
Dextroposition (dextrorotation) of Aorta
Right ventricular hypertrophy
Interventricular septal defect
Pulmonary stenosis

20

What law states that ant. spinal roots are motor & pos. spinal roots are sensory?

Bell Magende

21

This law states that at constant temp., gas volume is inverse to pressure

Boyle's Law

22

This law states that at constant pressure, gas volume is proportional to absolute temp.

Charles' Law

23

This is the minimum interval of time necessary to electrically stimulate a muscle or nerve fiber using twice the minimum current to elicit threshold response

Chronaxie

24

This law(?) will give the membrane potential on the inside of a membrane when 2 univalent positive ions, Na+ & K+ & 1 univalent negative ion, Cl- are involved

Goldman

25

This law states that gas solubility in a liquid is proportional to gas pressure

Henri

26

This law limits respiratory excursion via the Vagus nerve

Hering Breuer

27

This law states that the tension in an artery will be proportional to the radius of the vessel

LaPlace's Law for arteries

28

This law states that ventricular pressure depends on muscular tension, size, & shape of the heart

LaPlace's Law for the heart

29

This law states the potential level across a membrane exactly opposes net diffusion of particles through the membrane

Nernst Law(? don't know if it's a "law")

30

What is the minimum electrical current of infinite duration to elicit a threshold response called?

Rheobase

31

This law states that cardiac output is equal to venous return

Starling's law

32

This is when hemoglobin becomes more acidic binding w/ oxygen. Causes CO2 & H+ protons to be expelled into the aveoli. Part of the Bohr Effect

Haldane Effect

33

This lung volume is considered normal breathing (500ml). Fires Herring-Breuer reflex

Tidal Volume

34

This lung volume is forced inspiration (3000ml). Shuts off Herring-Breuer reflex

Inspiratory Reserve Volume

35

This lung volume is forced expiration (1100ml)

Expiratory Reserve Volume

36

This lung volume keeps the lungs from collapsing (1200ml)

Residual volume

37

This is a combination of IRV + TV (3500ml)

Inspiratory Capacity

38

This is a combination of ERV + RV (2300ml)

Functional Residual Capacity

39

This is a combination of IRV + TV + ERV or IC + ERV (4600ml)

Vital capacity

40

This is a combination of IRV + TV + ERV + RV (5800ml)

Total lung volume

41

What is air in the pulmonary tree not involved w/ gas exchange called?

dead space

42

Respiration is controlled by what nucleus?

Dorsal motor nucleus of Vagus

43

Muscle lengthens while it contracts

Eccentric

44

Muscle shortens while it contracts

Concentric

45

Muscle contracts w/o joint movement on muscle lengthening

Isometric

46

Muscle contracts w/ joint movement & constant weight

Isotonic

47

Muscle contracts w/ joint movement & constant weight/speed

Isokinetic

48

AKA goblet cells in the lungs. Produce mucus, serves as a defense mechanism in case of noxious air

J cells

49

What is the apex of lung/cervical pleura called?

Cupola

50

This creates the potential space for breathing. It's inf. to the root of the lung.

Pulmonary lig.

51

Fluid in the lungs collects where?

Costodiaphragmatic recess

52

What is the best test for Glomerular Filtration Rate (GFR)?

Inulin

53

How many renal pyramids are in one kidney?

8-12

54

How is the neurohypophysis connected to the hypothalamus?

Infundibulum (neural stalk)

55

What makes inhibin in females? Males?

Corpus leuteum; Sertoli cells

56

What is "growth hormone" for cartilage called?

Somatomedin (made in liver)

57

Which is more powerful, faster acting, & less abundant, T3 or T4?

T3

58

Where is calcitonin made?

Parafollicular cells of thyroid