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NCBE Part 1 (Andy's) > NCBE 1 phys > Flashcards

NCBE 1 phys Flashcards

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1
Q

Saltatory (jumping) conduction is described as conduction of an action potential through which type of fiber?

A

myelinated fiber

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2
Q

The relative refractory period is influenced by ________________ conductance?

A

incr. potassium

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3
Q

Which of the following is a rapidly adapting receptor?

A

pacinian corpuscles

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4
Q
  1. Which of the following is a characteristic of smooth muscle?
A

actin

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5
Q

The pancreas secretes which of the following substances?

A

somatostatin

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6
Q

When you come in contact with a cold object, heat is lost by which of the following means?

A

conduction

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7
Q

cheif cells produce ______

A

pepsinogen

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8
Q

After forced expiration, what remains in the lungs?

A

residual volume

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9
Q

After forced expiration, what remains in the lungs?

A

functional residual capacity

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10
Q

Sympathetic stimulation affects all of the following except:

A

capillaries

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11
Q

A major constituent of lymphs:

A

proteins

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12
Q

What’s responsible for deep joint pain?

A

merkel’s disc

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13
Q

The purpose of the AV node is to?

A

cause a delay in conduction

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14
Q

Residual volume + vital capacity =?

A

total lung capacity

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15
Q

Which of the following substances is produced in the muscle following glycolysis in an oxygen depleted state?

A

lactate

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16
Q

What do the cells of Leydig respond to?

A

LH

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17
Q

What’s released from the sarcoplasmic reticulum?

A

Ca

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18
Q

What type of light sensitive protein is found in the rods?

A

rhodopsin

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19
Q

In a 40yo male, _____ is responsible for RBC production?

A

flat bones

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20
Q

What’s the purpose of Haldane Effect?

A

increase CO2 transport

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21
Q

protein metabolism can be best measured by?

A

urea in urine

22
Q

Multi-unit smooth muscle consists of units that can contract independent of one another. An example of this would be?

A

cillary muscle of the eye

23
Q

What stimulates phagocytosis

A

opsonins

24
Q

what population exhibits the greatest incidence of colorectal cancer?

A

north americans

25
Q
  1. which of the following is abnormal in osteogenesis imperfecta?
A

collagen

26
Q
  1. Patient has 45XØ karyotype, which is the ensuing condition?
A

turner’s syndrome

27
Q

which of the following forms of leukemia is associated with Philiedelphia chromosome?

A

chronic myeliocytic

28
Q

dysfunction of the lacrimal and salivary glands in addition to an inflammatory arthritis, whats the condition?

A

sjogren syndrome

29
Q

which of the following casues the most joint distruction?

A

supporative arthritis

30
Q

In diabetes Insipitis where is the problem?

A

hypothalamus

31
Q

as a result of skeletal muscle trauma, the development of Rhabdomyolysis will effect which of the following organs?

A

kidney

32
Q

megaloblastic anemia is result of what deficiency?

A

b12

33
Q

involuntary gross abnormal movements are seen with a lesion to which of the following region?

A

basal ganglia

34
Q

maternal blood fetoproteins are elevated in which of the following conditions?

A

spina bifida

35
Q

Which of following causes a delay to the impulse in the heart?

A

av node

36
Q

Which of the following most effectively causes loss of body heat when compared to ambient heat?

A

radiation

37
Q

Which of the following is the integrating system of the spinal cord?

A

grey spinal cord

38
Q

Which of the following is not a catecholamine?

A

acetylcholine

39
Q
  1. The descending pain modular system specifically inhibits which of the following?
A

c fibers/ pain fibers

40
Q

The greatest increase in peripheral vascular resistance in response to widespread sympathetic stimulation tissue?

A

cutaneous

41
Q

Which of the following organelles of skeletal mm. transmits the action potential from the outside of the cell to the inside?

A

t-tubule

42
Q
  1. What maintains basic body temperature when entire skin is chilled?
A

shivering

43
Q

Influx of which of the following ions responsible for depolarization?

A

Na

44
Q
  1. During resting phase of a neuron what is secreted?
A

Na out

45
Q

P wave on electrocardiogram demonstrates ______?

A

atrial depolarization

46
Q

Which of the following has largest lung volume?

A

vital capacity

47
Q

Neurotransmitter molecules are released at nerve cell endings due to ____ ion?

A

Ca

48
Q
  1. What is the first audible sound found in diastole?
A

closure of the semilunar valves

49
Q
  1. Which of the following is transported in the lymphatic system?
A

chylomicrons

50
Q

Which substance made by the kidney is responsible for the oxygen carrying capacity of the blood?

A

erythropoetin

NCBE Part 1 (Andy's) (2 decks)

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