Physiology test bank Flashcards
1
Q
The chemosensitive area of the Medullaoblongata is most sensitive to? A. carbonnic acid B. H Ions C. Bicarbonate ions D. O2
A
B. H Ions
2
Q
Where is the somatosensory area of the brain located? A. Parietal lobe B. Occipital lobe C. Frontal lobe D. Temporal lobe
A
A. Parietal lobe
3
Q
The plateau of the caridiac action is due to? A. Slow calcium channels B. Slow potassium channels C. Slow Na channels D. Fast Na channels
A
A. Slow calcium channels
4
Q
The absolute refactory period is responsible for which of the following?
A. To prevent tetany
B. To create a stronger action potential
C.Has no function
D. To prevent paralysis
A
A. To prevent tetany
5
Q
Which of the following binds with the alpha receptor on vascular smooth muscle to cause vasoconstriction? A. Norepinephrine B. Dopamine C. Serotonin D. Acetylcholine
A
A. Norepinephrine
6
Q
Alkaloids are detected by which takes sensations? A. Sour B. Bitter C. Sweet D. Salt
A
B. Bitter
7
Q
PCO2 pressure in the arterial blood is equivalent to? A. Atmospheric pressure B. Alveolus pressure C. venous blood D. Pulmonary artery
A
B. Alveolus pressure
8
Q
Which of the following inhibitor presynaptic neurotransmitters is for primary pain fibers in the substantial gelatinosa? A. Dopamine B. Enkephalin C. Serotonin D. Oxytocin
A
B. Enkephalin
9
Q
The release of a hormone from anterior pituitary will stimulate the release of ? A. Esterol B. Thyroxine C. Insulin D. Prolactin
A
B. Thyroxine
10
Q
The release of which of the following hormones is necessary for ovulation to occur? A. Estrogen B. LH C. Progesterone D. Testoserone
A
B. LH
11
Q
With the head in the vertical position which of the following will detect static equilibrium? A. Utricle B. Cochlear duct C. Organ of corti D. Semicircular
A
A. Utricle
12
Q
Which of the following is the function of the oval window?
A. Transmit vibration to the macula
B. Transmit vibration to the utricle
C. Transmit vibration to the scala vestibuli
D. Transmit vibration to the cordae tympani
A
C. Transmit vibration to the scala vestibuli
13
Q
During repolarization of an action potential which of the following will exit? A. Na B. Potassium C. Mg D. Chloride
A
B. Potassium
14
Q
How is glucose transported within the presence of a carrier protein channels? A. Facilitated diffusion B. Active transport C. Sodium co-transport D. Osmosis
A
A. Facilitated diffusion
15
Q
Which of the following enhances permeability to increase heart conduction? A. GAP junctions B. Sa node C. Av node D. Purkinje fiber
A
A. GAP junctions
16
Q
In the male the feedback of LH is accomplished by which of the following? A. Oxytocin B. Testosterone C. FSH D. Estrogen
A
B. Testosterone
17
Q
Which neurotransmitter is released at the postganglionic sympathetics? A. Norepinephrine B.Dopamine C. Enkephalins D.Acetylcholine
A
A. Norepinephrine
18
Q
Renal ultra-filtration occers in what location of the kidney? A. Glomerular capillaries B. Renal collecting ducts C. Afferent arteriol D. Proximal tubule
A
A. Glomerular capillaries
19
Q
Loss of fluid in adults at ambient temperature of 70 degrees is by? A. Urination B. Respiration C. Defecation D. Perspiration
A
A. Urination
20
Q
Which of the following increases gastric mobility? A. Secretin B. Cholecystokinin C. Gastrin D. Serotonin
A
C. Gastrin
21
Q
Which of the following prevents gastric reflux?
A. Caving in of the esophagus
B. Physiological sphincter similar to the pylourus
C. Esophageal constriction
D. Stomach contraction
A
B. Physiological sphincter similar to the pylourus
22
Q
Stimulation of gut smooth muscle by the sympathetic nervous system causes?
A. Hyperpolarization & Decrease function
B. Increased positively of membrane potential
C. Increase rate and amplitude out of peristalisis
D. Decrease tonic contraction of gut sphincters
A
A. Hyperpolarization & Decrease function
23
Q
Which of the following is not involved in smooth muscle contraction? A. Autonomic nervous system stimulation B. Hormonal secretion C. Stretch reflex D. Voluntary motor stimulation
A
D. Voluntary motor stimulation
24
Q
The bodies primary response to rapid hemorrhage with blood loss is?
A. Increase rennin production of the JG cells
B. Increase ADH
C. Decrease barroreceptor
D. Increase barroreceptors
A
A. Increase rennin production of the JG cells
25
```
Secretin causes release of ?
A. Bicarbonate
B. Gastrin
C. HCL
D. Intrinsic factor
```
A. Bicarbonate
26
```
Which of the following causes contraction of the gallbladder?
A. Cholecytokinin
B. Secretin
C. Gastrin
D. Estrogastrene
```
A. Cholecytokinin
27
```
Thermostactic variation is recognized by which area of the CNS?
A. Anterior hypothalamus
B. Medial hypothalamus
C. Lateral hypothalamus
D.Posterior hypothalamus
```
A. Anterior hypothalamus
28
```
In acidosis the kidney? the secretion of?
A. Increases, bicarbonate
B. Increases carbon dioxide
C. Decrease bicarbonate
D. Decrease carbon dioxide
```
A. Increases, bicarbonate
29
```
In the kidney tubule what is converted to ammonia?
A. Lysine
B. Tyrosine
C. Glycine
D. Glutamine
```
D. Glutamine
30
```
Which of the following is responsible to degeneration of the of the endometrium?
A. Estrogen
B. Prolactin
C. Oxytocin
D. Corpus lutem involution
```
D. Corpus lutem involution
31
```
Destruction of what area results in the inability to formulate sentences?
A. Broca's area
B. Wernicks area
C. Prefrontal area
D. Visual association
```
A. Broca's area
32
```
Lymphatic tissue is predominantly found in?
A. Skin and gut
B. Skin and liver
C. Liver and gut
D. Skin and sketetal
```
A. Skin and gut
33
```
Edema is caused by?
A. Increase plasma colloid osmotic
B. Increase lymphatic pumping of skeletal muscle
C. Decrease arteriole pressure
D. Increase venous pressure
```
D. Increase venous pressure
34
```
Proteins are absorbed across the lumen of the small intestine as?
A. Pepptides
B. Dipeptides
C. Polypeptides
D. Amino acids
```
D. Amino acids
35
```
The action of Norepinephrine on none SA node is mediated by what type of transmembrane reaction?
A. Ca
B. Na
C. Potassium
D. Chloride
```
A. Ca
36
```
A wide, call, bizarre QRS wave?
A. Premature ventricular contraction
B. Atrial fibrillation
C. Myocardial infarction
D. Ventricular tachycardia
```
A. Premature ventricular contraction
37
```
Which of the following immunoglobulins crosses the placenta?
A. IgA
B. IgG
C. IgD
D. IgM
```
B. IgG
38
```
Which of the following is responsible for contraction according to Starlings law?
A. Blood pressure
B. H ion
C. Venous return
D. Carbon dioxide
```
C. Venous return
39
```
Vasoconstriction of a Peripheral blood vessel is a cure terrific of which nervous system?
A. Somatic
B. Sensory
C. Sympathetic
D. Parasympathetic
```
.
40
```
Which of the following stimulates red blood cell reproduction?
A. Vitamin E
B. Vitamin C
C. Erythropoietin
D. Firbrin
```
C. Erythropoietin
41
Aldosterone has its greatest effect on?
A. Increase sensation
B. Increase reabsorption of filtering it Na at the distal tubule
C. Increase secretion of Na at the distal tubule
D.
B. Increase reabsorption of filtering it Na at the distal tubule
42
```
Testosterone is produced in secreted by?
A. Epididymis
B. Interstitial cells of lydig
C. Seminepherus lube
D. Seroni cells
```
B. Interstitial cells of lydig
43
```
Which of the following hormones is responsible for decrease blood glucose levels?
A. Cortisol
B. Insulin
C. Glucagons
D. Epinephrine
```
B. Insulin
44
```
Preganglionic sympathetic fibers arise from what part of the spinal cord?
A. Anterior worn
B. Posterior horn
C. Substantia gelatinosa
D. Intermedio
```
D. Intermedio
45
```
The autorhythmicity of the heart is controlled by?
A. Sa node
B. Av node
C. Bundle of his
D. Purkinje fibers
```
A. Sa node
46
```
One hormone is secreted by the posterior pituitary?
A. ADH
B.
C.
D.
```
A.ADH
47
```
Which hormone is released during long-term stress?
A. Dopamine
B. Acetylcholine
C. Cortisol
D. Serotonin
```
C. Cortisol
48
```
Ca is released from one part of the muscle?
A. Actin
B. T. tubules
C. Sarcoplasmic reticulum
D. Troponin-tryponmysin complex
```
C. Sarcoplasmic reticulum
49
```
The flow of urine after the minor calyx is into the?
A. Major calyx
B. Ureter
C. Renal pelvis
D. Renal sinus
```
A. Major calyx
50
```
Which of the following allows impulse of heart, heart to be functionally syncytium?
A. Intercalated disc
B. Actin
C. Myosin
D. Troponin
```
A. Intercalated disc
51
```
Sugars are of forbes in which of the following forms?
A. Monosaccharide's
B. Polysaccharides
C. Disaccharide's
D. Oligosaccharides
```
A. Monosaccharide's
52
```
The majority of acetylcholine is removed from the sympathetic cleft by?
A. Emzamatic degeneration
B. Re-uptake
C. Diffusion
D. Phagocytosis
```
A. Emzamatic degeneration
53
```
The movement of white blood cells in response to a concentration gradient is called?
A. Chemotaxis
B. Hemotaxis
C. .
D. .
```
.
54
```
Principal site for fat digestion is?
A. Stomach
B. Duodenum
C. Ileum
D. Jejunum
```
B. Duodenum
55
```
Ammonia is converted to urea by?
A. Liver
B. Kidney
C. Muscle
D. Spleen
```
.
56
```
Ammonia is carried in bloodstream by?
A. Urea
B. Uric acid
C. Glutamine
D. Bile salts
```
C. Glutamine
57
```
The major way by a which cholesterol is a laminated from the body is?
A. Feces
B.
C.
D.
```
A. Feces
