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Arbor vitae is mainly composed of-

Human Anatomy and Physiology Class 12th NORCET Pharmacist Competitive Exams Nurse Competitive Exams

Q. 11 of Quiz-1066 (Que-ID : 1973)

Arbor vitae is mainly composed of-

  • Gray Matter
  • Neuroglial cells
  • White matter
  • All of these

Ans → (c)White matter

Explanation → The arbor vitae /ˌɑːrbɔːr ˈvaɪtiː/ (Latin for "tree of life") is the cerebellar white matter, so called for its branched, tree-like appearance. 

This question is taken from this post → Basics of Physiology Practice Test part-1 for Staff Nurse and Pharmacist Exams - attemp/practice


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Q. 1 of Quiz-1066 (Que-ID : 1963)

A person living at a high altitude will have-

  • High alveolar capacity
  • More erythrocytes
  • Haemoglobin curve shifted towards right
  • All of these

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Q. 2 of Quiz-1066 (Que-ID : 1964)

The exchange of gases in the alveoli of the lungs takes place by-

  • Simple diffusion
  • Osmosis
  • Passive transport
  • Active transport

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Q. 3 of Quiz-1066 (Que-ID : 1965)

Lungs are enclosed in-

  • Pericardium
  • Peritoneum
  • Pleura
  • Perichondrium

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Q. 4 of Quiz-1066 (Que-ID : 1966)

Pasteurization of milk means-

  • All bacteria are killed
  • Milk is enriched with vitamins
  • Pathogenic bacteria are killed
  • Milk casein is partially digested

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Q. 5 of Quiz-1066 (Que-ID : 1967)

Haemoglobin - oxygen dissociation curve is-

  • Hyperbolic
  • Straight
  • Sigmoid
  • Constant

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Q. 6 of Quiz-1066 (Que-ID : 1968)

Arytenoid cartilage occurs in-

  • Nose
  • Larynx
  • Hyoid
  • Sternum

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Q. 7 of Quiz-1066 (Que-ID : 1969)

Respiratory Quotient (RQ) is less than 1 for -

  • Potato
  • Citrus Fruits
  • Castor seeds
  • Banana

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Q. 8 of Quiz-1066 (Que-ID : 1970)

A pacemaker is implanted when one of these is defective-

  • SA node
  • AV node
  • Purkinje fibres
  • Bundle of lines

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Q. 9 of Quiz-1066 (Que-ID : 1971)

Circulation of blood was discovered by-

  • Darwin
  • Harvey
  • Aristotle
  • Pasteur

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Q. 10 of Quiz-1066 (Que-ID : 1972)

The sensation of stomach pain is due to-

  • Interoreceptors
  • Exteroreceptors
  • Proprioreceptors
  • Teloreceptors

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Q. 11 of Quiz-1066 (Que-ID : 1973)

Arbor vitae is mainly composed of-

  • Gray Matter
  • Neuroglial cells
  • White matter
  • All of these

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Q. 12 of Quiz-1066 (Que-ID : 1974)

Atoconium is found in-

  • Perilymph
  • Haemolymph
  • Synovial fluid
  • Otolithic membrane

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Q. 13 of Quiz-1066 (Que-ID : 1975)

Eyelashes are lubricated by-

  • Ceruminous glands
  • Meibomian glands
  • Lacrymal glands
  • All of these

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Q. 14 of Quiz-1066 (Que-ID : 1976)

Structure connected with vision in rabbit is-

  • Corpus callosum
  • Corpus albicans
  • Hippocampus
  • Corpora quadrigeuina

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Q. 15 of Quiz-1066 (Que-ID : 1977)

Organs of Ruffini are receptors of-

  • Cold
  • Pressure
  • Heat
  • Touch

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Q. 16 of Quiz-1066 (Que-ID : 1978)

Which of the following cranial nerves of man is Both sensory or motor?

  • Optic
  • Vagus
  • Olfactory
  • Trigeminal

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Q. 17 of Quiz-1066 (Que-ID : 1979)

Cardiac cycle in man takes about-

  • 0.5 seconds
  • 1.2 seconds
  • 1.0 seconds
  • 0.8 seconds

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Q. 18 of Quiz-1066 (Que-ID : 1980)

RBCs are generally destroyed in the liver, while WBCs are destroyed in-

  • Plasma
  • Lymph
  • Inside various cells of body
  • Out side the blood stream

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Q. 19 of Quiz-1066 (Que-ID : 1981)

The hormone responsible for urine concentration is-

  • Vasopressin
  • Pitocin
  • Thyroxine
  • Renin

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Q. 20 of Quiz-1066 (Que-ID : 1982)

Gigantism and acromegaly result from hypersecretion of-

  • ADH
  • GH
  • STH
  • None of the above

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Q. 21 of Quiz-1066 (Que-ID : 1983)

Emergency gland of blood is-

  • Thymus
  • testis
  • Adrenal
  • Pituitary

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Q. 22 of Quiz-1066 (Que-ID : 1984)

The calcium level in the blood can be increased by administration of-

  • Glucagon
  • Thyroxine
  • Parathormone
  • Clcitonin

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Q. 23 of Quiz-1066 (Que-ID : 1985)

Shape of an Eye is maintained by-

  • Aqueous Humour
  • Vitreous humour
  • Conjunctiva
  • All of these

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Q. 24 of Quiz-1066 (Que-ID : 1986)

RBCs in the mammals have no nucleus because -

  • it has degenerated during development
  • they do not have nucleus since early
  • nucleus is harmful for RBCs
  • Nucleus decrease surface area

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Q. 25 of Quiz-1066 (Que-ID : 1987)

Which of the following are respiratory organs of scorpions?

  • Lungs
  • Book-lungs
  • Gills
  • Ctenidia

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Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because

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  • nodes have meristematic cells
  • nodes are located near the soil
  • nodes have non-photosynthetic cells.

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Q. 18 of Quiz- (Que-ID : 1052)

Lysosomes are also known as -

  • Power house of cell
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  • Suicidal bags
  • None of the above

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Q. 25 of Quiz- (Que-ID : 2968)

Which out of the following statements is incorrect ?

  • Genetic code is ambiguous.
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  • Genetic code is universal
  • Genetic code is non-overlanning.

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Q. 17 of Quiz- (Que-ID : 3335)

Injection of antitoxin in tetanus confers which type of immunisation ?

  • Active immunisation
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  • Auto-immunisation
  • Humoral immunisation

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Q. 25 of Quiz- (Que-ID : 3468)

Ozone protects biosphere from high energetic:

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  • Ultraviolet rays
  • X-rays
  • gamma rays

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Q. 3 of Quiz- (Que-ID : 3568)

Anise fruit is obtained from-

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Q. 1 of Quiz- (Que-ID : 3419)

Desired properties of plants and Animals are possible by which reproduction?

  • Genetic Engineering
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Haemoglobin - oxygen dissociation curve is-

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  • Straight
  • Sigmoid
  • Constant

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Q. 3 of Quiz- (Que-ID : 3446)

The number of deaths in the population during a given period is referred to

  • Natality
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  • None of the above

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Q. 24 of Quiz- (Que-ID : 1986)

RBCs in the mammals have no nucleus because -

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  • they do not have nucleus since early
  • nucleus is harmful for RBCs
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Q. 1 of Quiz- (Que-ID : 3394)

Biolistics (gene gun) is suitable for

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Q. 11 of Quiz- (Que-ID : 3379)

Enzyme which has the fibrinolytic effect is

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Q. 14 of Quiz- (Que-ID : 3889)

Therapeutic application of enzyme streptokinase

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  • Gene transfer
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Q. 2 of Quiz- (Que-ID : 478)

The reserve pacemaker is

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  • SA node
  • Bundle of his
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Q. 18 of Quiz- (Que-ID : 572)

photosynthesis takes place faster in

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  • red light
  • white light
  • yellow light

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Q. 21 of Quiz- (Que-ID : 3514)

in your opinion, which is the most effective way to conserve the plant diversity of an area?

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Q. 21 of Quiz- (Que-ID : 1983)

Emergency gland of blood is-

  • Thymus
  • testis
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Q. 14 of Quiz- (Que-ID : 1863)

The first governor-general of the East India Company in India was?

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Q. 11 of Quiz- (Que-ID : 2904)

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  • spermiogenesis
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Q. 12 of Quiz- (Que-ID : 3330)

The antibody which can cross placental barrier is

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Q. 23 of Quiz- (Que-ID : 2610)

Which of the following is an indicator of AIIDS?

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Q. 13 of Quiz- (Que-ID : 565)

The speed of light was first measured by -

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Q. 8 of Quiz- (Que-ID : 3326)

The common cold is caused by

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Q. 15 of Quiz- (Que-ID : 2602)

Lactulose is prescribed for patients with hepatic ancephalopathy to

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  • Increase the glucose level

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Q. 11 of Quiz- (Que-ID : 2829)

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