NCBE 1 phys

Question 1

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

Answer 1

myelinated fiber

Question 2

The relative refractory period is influenced by ________________ conductance?

Answer 2

incr. potassium

Question 3

Which of the following is a rapidly adapting receptor?

Answer 3

pacinian corpuscles

Question 4

9. Which of the following is a characteristic of smooth muscle?

Answer 4

actin

Question 5

The pancreas secretes which of the following substances?

Answer 5

somatostatin

Question 6

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

Answer 6

conduction

Question 7

cheif cells produce ______

Answer 7

pepsinogen

Question 8

After forced expiration, what remains in the lungs?

Answer 8

residual volume

Question 9

After forced expiration, what remains in the lungs?

Answer 9

functional residual capacity

Question 10

Sympathetic stimulation affects all of the following except:

Answer 10

capillaries

Question 11

A major constituent of lymphs:

Answer 11

proteins

Question 12

What’s responsible for deep joint pain?

Answer 12

merkel’s disc

Question 13

The purpose of the AV node is to?

Answer 13

cause a delay in conduction

Question 14

Residual volume + vital capacity =?

Answer 14

total lung capacity

Question 15

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

Answer 15

lactate

Question 16

What do the cells of Leydig respond to?

Answer 16

LH

Question 17

What’s released from the sarcoplasmic reticulum?

Answer 17

Ca

Question 18

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

Answer 18

rhodopsin

Question 19

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

Answer 19

flat bones

Question 20

What’s the purpose of Haldane Effect?

Answer 20

increase CO2 transport

Question 21

protein metabolism can be best measured by?

Answer 21

urea in urine

Question 22

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

Answer 22

cillary muscle of the eye

Question 23

What stimulates phagocytosis

Answer 23

opsonins

Question 24

what population exhibits the greatest incidence of colorectal cancer?

Answer 24

north americans

Question 25

53. which of the following is abnormal in osteogenesis imperfecta?

Answer 25

collagen

Question 26

61. Patient has 45XØ karyotype, which is the ensuing condition?

Answer 26

turner's syndrome

Question 27

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

Answer 27

chronic myeliocytic

Question 28

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

Answer 28

sjogren syndrome

Question 29

which of the following casues the most joint distruction?

Answer 29

supporative arthritis

Question 30

In diabetes Insipitis where is the problem?

Answer 30

hypothalamus

Question 31

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

Answer 31

kidney

Question 32

megaloblastic anemia is result of what deficiency?

Answer 32

b12

Question 33

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

Answer 33

basal ganglia

Question 34

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

Answer 34

spina bifida

Question 35

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

Answer 35

av node

Question 36

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

Answer 36

radiation

Question 37

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

Answer 37

grey spinal cord

Question 38

Which of the following is not a catecholamine?

Answer 38

acetylcholine

Question 39

20. The descending pain modular system specifically inhibits which of the following?

Answer 39

c fibers/ pain fibers

Question 40

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

Answer 40

cutaneous

Question 41

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

Answer 41

t-tubule

Question 42

23. What maintains basic body temperature when entire skin is chilled?

Answer 42

shivering

Question 43

Influx of which of the following ions responsible for depolarization?

Answer 43

Na

Question 44

25. During resting phase of a neuron what is secreted?

Answer 44

Na out

Question 45

P wave on electrocardiogram demonstrates ______?

Answer 45

atrial depolarization

Question 46

Which of the following has largest lung volume?

Answer 46

vital capacity

Question 47

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

Answer 47

Ca

Question 48

42. What is the first audible sound found in diastole?

Answer 48

closure of the semilunar valves

Question 49

43. Which of the following is transported in the lymphatic system?

Answer 49

chylomicrons

Question 50

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

Answer 50

erythropoetin