Question 1

No impulse can be sent through a neuron:
  A. during the relative refractory period. 
  B. when the charge of the neuron is –70. 
  C.(during the absolute refractory period. 
  D. when the stimulus is too strong

Accepted Answer

C.( during the absolute refractory period. )

Question 2

A synapse consists of:

  a synaptic knob. 

  a synaptic cleft. 

 the plasma membrane of a postsynaptic neuron. 

  all of the above.

Accepted Answer

(all of the above. )

Question 3

The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second.

  60 
  85 
130
190

Accepted Answer

130

Question 4

When an impulse reaches a synapse:

two nerve fibers come in direct contact. 
 impulses will pass in either direction. 
 an electrical spark will jump the gap. 
 chemical transmitters are released

Accepted Answer

chemical transmitters are released

Question 5

The part of the brain that can directly influence or inhibit the release of hormones from the pituitary is the:
  hypothalamus. 
  thalamus. 
 medulla. 
 midbrain

Accepted Answer

hypothalamus.

Question 6

Impulses from the _____ play a part in arousing or alerting the cerebrum.

  pons 
 thalamus
 cerebellum 
hypothalamus

Accepted Answer

(thalamus)

Question 7

The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic.
True 
 False

Accepted Answer

True

Question 8

Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus.

 sacral 
 cervical
coccygeal 
lumbar

Accepted Answer

(coccygeal )

Question 9

Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate.

  olfactory 
  trigeminal 
  vagus 
 hypoglossal

Accepted Answer

(vagus )

Question 10

The term blood type refers to the type of blood cell

  antibody. 
  antigen. 
 transfusion reaction.

Accepted Answer

(antigen. )

Question 11

The physiological mechanism that dissolves clots is known as

  hemostasis. 
  fibrinolysis. 
  erythroblastosis. 
diapedesis.

Accepted Answer

(fibrinolysis. )

Question 12

Blood volume per kilogram of body weight varies inversely with:

 skeletal volume. 
body fat. 
water weight. 
height.

Accepted Answer

body fat.

Question 13

Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood.

  glucose molecules present 
 lipid molecules present 
formed elements 
protein molecules present

Accepted Answer

protein molecules present

Question 14

Cardiac output is determined by

  stroke volume and blood pressure. 
  heart rate and blood pressure. 
stroke volume and heart rate. 
 stroke volume and peripheral resistance.

Accepted Answer

stroke volume and heart rate.

Question 15

Which of the following is(are) involved in determining a person’s total blood volume?

  Age 
  Body type 
  Sex 
  All of the above

Accepted Answer

(All of the above )

Question 16

Complement can best be described as a(n):
  enzyme in blood. 
  lymphokine. 
  antibody. 
hormone

Accepted Answer

(enzyme in blood. )

Question 17

Activities that result in central movement or flow of lymph are called

  lymph mechanisms. 
  lymphokinetic activities.
  lymphatic activities. 
none of the above.

Accepted Answer

(lymphokinetic activities.)

Question 18

Which antibody is synthesized by immature B cells and then inserted into their plasma membranes?
  immunoglobulin M 
 immunoglobulin G 
  immunoglobulin A 
  immunoglobulin E 
  immunoglobulin D

Accepted Answer

(immunoglobulin M )

Question 19

No impulse can be sent through a neuron:
  A. during the relative refractory period. 
  B. when the charge of the neuron is –70. 
  C.(during the absolute refractory period. 
  D. when the stimulus is too strong

Accepted Answer

C.( during the absolute refractory period. )

Question 20

Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate.

  olfactory 
  trigeminal 
  vagus 
 hypoglossal

Accepted Answer

(vagus )

Question 21

The term blood type refers to the type of blood cell

  antibody. 
  antigen. 
 transfusion reaction.

Accepted Answer

(antigen. )

Question 22

Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood.

  glucose molecules present 
 lipid molecules present 
formed elements 
protein molecules present

Accepted Answer

protein molecules present

Question 23

Cardiac output is determined by

  stroke volume and blood pressure. 
  heart rate and blood pressure. 
stroke volume and heart rate. 
 stroke volume and peripheral resistance.

Accepted Answer

stroke volume and heart rate.

Question 24

Which of the following is(are) involved in determining a person’s total blood volume?

  Age 
  Body type 
  Sex 
  All of the above

Accepted Answer

(All of the above )

Question 25

Complement can best be described as a(n):
  enzyme in blood. 
  lymphokine. 
  antibody. 
hormone

Accepted Answer

(enzyme in blood. )

Question 26

Activities that result in central movement or flow of lymph are called

  lymph mechanisms. 
  lymphokinetic activities.
  lymphatic activities. 
none of the above.

Accepted Answer

(lymphokinetic activities.)

Question 27

The functions of the lymph nodes are

  defense and hemostasis. 
  defense and diapedesis. 
defense and hematopoiesis. 
  hematopoiesis and hemostasis.

Accepted Answer

defense and hematopoiesis.

Question 28

Ciliated cells lining the respiratory tract:

  help move air into and out of the lungs. 
trap and phagocytize microorganisms. 
 help move the mucus blanket toward the pharynx. 
  do both B and C

Accepted Answer

(help move the mucus blanket toward the pharynx. )

Question 29

Gas exchange, the lungs’ main and vital function, takes place in the:
bronchioles. 
  secondary bronchi. 
  primary bronchi. 
alveoli.

Accepted Answer

alveoli. )

Question 30

The approximate partial pressure of oxygen at standard atmospheric pressure is about _____ mm Hg.

  23 
  160 
  300 
  590

Accepted Answer

(160 )

Question 31

Which of the following constitutes total lung volume?

Residual volume and vital capacity 
 Tidal volume, inspiratory reserve volume, and expiratory reserve volume
Residual volume and tidal volume 
  Vital capacity and tidal volume

Accepted Answer

(Residual volume and vital capacity )

Question 32

The intestinal hormone cholecystokinin:
 causes the pancreas to increase exocrine secretions high in enzyme content.
opposes the influence of gastrin on gastric parietal cells.
 stimulates the contraction of the gallbladder. 
  (does all of the above)

Accepted Answer

does all of the above

Question 33

Bicarbonates are useful in the GI tract to:

neutralize hydrochloric acid. )
break down fats. 
activate secretin. 
  activate pepsin.

Accepted Answer

neutralize hydrochloric acid. )

Question 34

The process of swallowing is known as:

  mastication. 
  deglutition. 
  peristalsis. 
  segmentation

Accepted Answer

(deglutition. )

Question 35

Which blood vessel carries absorbed food from the GI tract to the liver?

  Hepatic artery 
  Hepatic vein 
  Portal vein 
  Renal artery

Accepted Answer

(Portal vein )

Question 36

The hormone that stimulates the gallbladder to release bile is:

  enterogastrone. 
  insulin
  gastrin.
  cholecystokinin.

Accepted Answer

(cholecystokinin. )

Question 37

The enterogastric reflex causes:

 secretion of digestive enzymes in the small intestine.
  secretion of digestive enzymes in the stomach. 
  inhibition of gastric peristalsis. 
acceleration of gastric peristalsis

Accepted Answer

(inhibition of gastric peristalsis. )

Cathy Rios

Human Physiology week 7-13


No impulse can be sent through a neuron: A. during the relative refractory period. B. when the charge of the neuron is –70. C.(during the absolute refractory period. D. when the stimulus is too strong	C.( during the absolute refractory period. )
A synapse consists of: a synaptic knob. a synaptic cleft. the plasma membrane of a postsynaptic neuron. all of the above.	(all of the above. )
The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second. 60 85 130 190	130
When an impulse reaches a synapse: two nerve fibers come in direct contact. impulses will pass in either direction. an electrical spark will jump the gap. chemical transmitters are released	chemical transmitters are released
The part of the brain that can directly influence or inhibit the release of hormones from the pituitary is the: hypothalamus. thalamus. medulla. midbrain	hypothalamus.
Impulses from the _____ play a part in arousing or alerting the cerebrum. pons thalamus cerebellum hypothalamus	(thalamus)
The preganglionic neurons of both the sympathetic and the parasympathetic divisions are cholinergic. True False	True
Nerves that innervate the floor of the pelvic cavity and some of the surrounding areas are found in the _____ plexus. sacral cervical coccygeal lumbar	(coccygeal )
Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. olfactory trigeminal vagus hypoglossal	(vagus )
The term blood type refers to the type of blood cell antibody. antigen. transfusion reaction.	(antigen. )
The physiological mechanism that dissolves clots is known as hemostasis. fibrinolysis. erythroblastosis. diapedesis.	(fibrinolysis. )
Blood volume per kilogram of body weight varies inversely with: skeletal volume. body fat. water weight. height.	body fat.
Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood. glucose molecules present lipid molecules present formed elements protein molecules present	protein molecules present
Cardiac output is determined by stroke volume and blood pressure. heart rate and blood pressure. stroke volume and heart rate. stroke volume and peripheral resistance.	stroke volume and heart rate.
Which of the following is(are) involved in determining a person’s total blood volume? Age Body type Sex All of the above	(All of the above )
Complement can best be described as a(n): enzyme in blood. lymphokine. antibody. hormone	(enzyme in blood. )
Activities that result in central movement or flow of lymph are called lymph mechanisms. lymphokinetic activities. lymphatic activities. none of the above.	(lymphokinetic activities.)
Which antibody is synthesized by immature B cells and then inserted into their plasma membranes? immunoglobulin M immunoglobulin G immunoglobulin A immunoglobulin E immunoglobulin D	(immunoglobulin M )
No impulse can be sent through a neuron: A. during the relative refractory period. B. when the charge of the neuron is –70. C.(during the absolute refractory period. D. when the stimulus is too strong	C.( during the absolute refractory period. )
Nerve impulses over the _____ nerve cause increased peristalsis and decreased heart rate. olfactory trigeminal vagus hypoglossal	(vagus )
The term blood type refers to the type of blood cell antibody. antigen. transfusion reaction.	(antigen. )
Blood viscosity stems mainly from the red blood cells but also partly from the _____ in blood. glucose molecules present lipid molecules present formed elements protein molecules present	protein molecules present
Cardiac output is determined by stroke volume and blood pressure. heart rate and blood pressure. stroke volume and heart rate. stroke volume and peripheral resistance.	stroke volume and heart rate.
Which of the following is(are) involved in determining a person’s total blood volume? Age Body type Sex All of the above	(All of the above )
Complement can best be described as a(n): enzyme in blood. lymphokine. antibody. hormone	(enzyme in blood. )
Activities that result in central movement or flow of lymph are called lymph mechanisms. lymphokinetic activities. lymphatic activities. none of the above.	(lymphokinetic activities.)
The functions of the lymph nodes are defense and hemostasis. defense and diapedesis. defense and hematopoiesis. hematopoiesis and hemostasis.	defense and hematopoiesis.
Ciliated cells lining the respiratory tract: help move air into and out of the lungs. trap and phagocytize microorganisms. help move the mucus blanket toward the pharynx. do both B and C	(help move the mucus blanket toward the pharynx. )
Gas exchange, the lungs’ main and vital function, takes place in the: bronchioles. secondary bronchi. primary bronchi. alveoli.	alveoli. )
The approximate partial pressure of oxygen at standard atmospheric pressure is about _____ mm Hg. 23 160 300 590	(160 )
Which of the following constitutes total lung volume? Residual volume and vital capacity Tidal volume, inspiratory reserve volume, and expiratory reserve volume Residual volume and tidal volume Vital capacity and tidal volume	(Residual volume and vital capacity )
The intestinal hormone cholecystokinin: causes the pancreas to increase exocrine secretions high in enzyme content. opposes the influence of gastrin on gastric parietal cells. stimulates the contraction of the gallbladder. (does all of the above)	does all of the above
Bicarbonates are useful in the GI tract to: neutralize hydrochloric acid. ) break down fats. activate secretin. activate pepsin.	neutralize hydrochloric acid. )
The process of swallowing is known as: mastication. deglutition. peristalsis. segmentation	(deglutition. )
Which blood vessel carries absorbed food from the GI tract to the liver? Hepatic artery Hepatic vein Portal vein Renal artery	(Portal vein )
The hormone that stimulates the gallbladder to release bile is: enterogastrone. insulin gastrin. cholecystokinin.	(cholecystokinin. )
The enterogastric reflex causes: secretion of digestive enzymes in the small intestine. secretion of digestive enzymes in the stomach. inhibition of gastric peristalsis. acceleration of gastric peristalsis	(inhibition of gastric peristalsis. )

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